Engine Control Module Scan Tool Information. Holden Captiva 2009

For 1990-2009 cars only

Makes 🢒 Holden 🢒 2009 🢒 Captiva 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Control Module Scan Tool Information

Engine Control Module Scan Tool Information 3.2L, 3.6L

Table 1:	Engine Control Module Scan Tool Data
Table 2:	Engine Control Module (ECM) Scan Tool Output Controls

The Engine Control Module Scan Tool Data List contains all engine-related parameters that are available on the scan tool. This is a master list arranged in alphabetical order and not all the parameters listed are in every engine platform.

Use the Engine Scan Tool Data List only after the following is determined:

•	The Diagnostic System Check - Vehicle is completed.

•	No diagnostic trouble codes (DTCs)

•	On-board diagnostics are functioning properly

The scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents values that would be seen on a normally running engine.

Important: A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed below are referenced in this service manual for use in diagnosis.

Engine Control Module Scan Tool Data

Parameter	System State	Expected Value	Description
Base Operating Conditions: Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop
A/C Disengage 1-8 History	A/C ON	Reason for A/C Disengagement	The parameter displays the last 8 air conditioning (A/C) compressor disengages in order from 1 to 8 with 8 being the most recent. There are about 8 possible causes for the A/C compressor to disengage.
A/C High Side Pressure	A/C OFF	1.24 Volts	This parameter displays the voltage from the A/C high side pressure sensor signal circuit to the control module.
A/C High Side Pressure	A/C ON	1.45 Volts
A/C High Side Pressure	A/C OFF	500-2,200 kPa (72-319 psi)	This parameter displays the pressure from the A/C high side pressure sensor signal circuit to the control module.
A/C High Side Pressure	A/C ON	300-1,200 kPa (43-174 psi)
A/C Off for WOT	A/C ON	No	This parameter displays whether the control module is commanding the A/C compressor clutch relay off for wide open throttle (WOT).
A/C Pressure Disable	A/C ON	No	This parameter displays whether the A/C pressure is out of range for normal operation as determined by the control module.
A/C Relay Circuit Test Status	A/C ON or OFF	OK/Fault/Not Run	This parameter displays the state of the air conditioning (A/C) clutch relay control circuit. The parameter displays Fault if the A/C clutch relay control circuit is open, shorted to ground, or shorted to voltage.
A/C Relay Command	A/C ON	On	This parameter displays the state of the air conditioning (A/C) clutch relay control circuit as commanded by the control module.
A/C Request Signal	A/C ON	Yes	This parameter displays the state of the A/C request input to the control module from the heating, ventilation, and air conditioning (HVAC) controls.
Ambient Air Temperature	--	°C °F Varies	This parameter displays the surrounding air temperature.
APP Indicated Angle	Accelerator pedal not actuated	0%	This parameter displays the angle of the accelerator pedal position (APP) as calculated by the control module using the signals from the APP sensors.
APP Indicated Angle	Accelerator pedal fully actuated	100%
APP Sensor 1	Accelerator pedal not actuated	0.7-1.2 Volts	This parameter displays the actual voltage on the accelerator pedal position (APP) sensor 1 signal circuit as measured by the control module.
APP Sensor 1	Accelerator pedal fully actuated	4.2-4.5 Volts
APP Sensor 2	Accelerator pedal not actuated	0.3-0.5 Volts	This parameter displays the actual voltage on the accelerator pedal position (APP) sensor 2 signal circuit as measured by the control module.
APP Sensor 2	Accelerator pedal fully actuated	2.2-2.5 Volts
APP Sensor 1 and 2	--	Agree	This parameter displays Disagree if the control module detects the signal voltage from APP sensor 1 is not in correct relationship to APP sensor 2. The scan tool displays Agree under the normal operating conditions.
Average Injector PWM	--	1 Ms	This parameter displays the average ON time of all the Injectors.
BARO	--	65-104 kPa (8-16 psi)	This parameter displays the barometric pressure. The control module uses the barometric pressure sensor input for fuel control to compensate for altitude differences.
BARO	--	2.5-4.0 Volts	This parameter displays the barometric pressure sensor voltage.
Brake Pedal Signal Status	--	Valid/Invalid	This parameter displays the serial data message of the brake signal from the electronic brake and traction control module (EBTCM).
Calculated ECT - Closed Loop Fuel Control	--	-39 to +40°C (-38 to +104°F)	This parameter displays the modeled temperature that the control module calculates from air entering the engine, coolant temperature, and ambient air temperature. If the actual engine coolant temperature does not reach this calculated temperature within a predetermined amount of time, a DTC will set.
Calculated ECT - Thermostat Diagnosis	--	-39 to +140°C (-38 to +284°F)	This parameter displays the modeled temperature that the control module calculates from air entering the engine, coolant temperature, and ambient air temperature. If the actual engine coolant temperature does not reach this calculated temperature within a predetermined amount of time, a DTC will set.
Calc. TWC Temp. Bank 1 and 2	--	414°C (773°F)	This parameter displays the catalytic converter temperature as calculated by the control module.
Catalytic Converter Protection Active	--	No	This parameter displays if the control module is commanding catalytic converter protection.
Catalyst Monitor Complete This Ignition	--	Yes	This parameter displays the monitor completion status during the current driving/monitoring cycle.
Catalyst Monitor Enabled this Ignition	--	Yes	This parameter displays the monitor enable status during the current driving/monitoring cycle.
CKP Resync Counter	--	0 Counts	This parameter displays the number of times the control module re-syncs with the CKP sensor.
Clutch Start Switch (If Equipped)	Clutch pedal not actuated	Off	This parameter displays the state of the clutch pedal as determined by the control module from the clutch start switch.
Clutch Start Switch (If Equipped)	Clutch pedal fully actuated	On
Cold Startup	--	Yes/No	This parameter displays whether the engine meets the conditions for a cold startup during the present ignition cycle. The scan tool displays Yes when the conditions for a cold startup are met during this ignition cycle. The scan tool displays No when the conditions for a cold startup are not met during the present ignition cycle. Conditions for a cold startup require the coolant temperature and the intake air temperature to be below a predetermined temperature and within a certain range of each other. These conditions must occur after the engine was warmed up to a specific temperature during the previous ignition cycle.
Commanded A/F Equivalence Ratio	--	14.7:1	This parameter displays the ratio of air to fuel as calculated by the control module based on various sensor inputs. The scan tool will display a lower air fuel ratio when a richer air to fuel mixture is commanded. The scan tool will display a higher air fuel ratio when a leaner air to fuel mixture is commanded. In closed loop operation the air fuel ratio should normally be around 14.2-14.7 to 1.
Component Monitor Enable This Ignition	--	Yes	This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.
Control Module Voltage	--	14.25 volts	This parameter displays the state of the ignition system voltage available at the control module.
CPP Switch (If Equipped)	Clutch pedal not actuated	Released	This parameter displays the state of the clutch pedal as determined by the control module from the clutch pedal switch.
CPP Switch (If Equipped)	Clutch pedal fully actuated	Applied
Crank Request Signal	Ignition switch not in the crank position	No	This parameter displays whether the ignition switch has been cycled to the crank position requesting the control module to activate the starter relay.
Crank Request Signal	Ignition switch in the crank position	Yes
Cruise Control Active	--	No	This parameter displays the status of the cruise control system as determined by the control module.
Cruise Disengage 1-8 History	Cruise ON	Reason for Cruise Disengagement	The parameter displays the last 8 cruise control disengages in order from 1 to 8, with 8 being the most recent. There are about 33 possible causes for the cruise control to disengage
Cruise Inhibited	Cruise ON	No	The parameter displays the reason why the cruise control system is inhibited.
Cruise On/Off Switch	--	On/Off	The engine control module (ECM) monitors the signal circuit of the cruise control switch. A closed switch is displayed as On.
Cruise Resume/Accel. Switch	--	Active/Inactive	The scan tool displays On, when the cruise On/Off switch is ON and the resume/accel (+) button is pressed, the ECM detects a predetermined voltage value for the resume/accel. switch.
Cruise Set/Coast Switch	--	Active/Inactive	The scan tool displays On, when the cruise on/off switch is ON and the ECM detects a predetermined voltage value for the set/coast (-) switch.
Current Gear	Transmission in Park/Neutral	P/N	This parameter displays the transmission gear commanded by the transmission control module.
Current Gear	Transmission not in Park/Neutral	Reverse/1st-5th
Cycles of Misfire Data	--	0-200 counts	This parameter displays the number of misfire tests during 200 engine revolutions.
Cylinder 1-6 Ignition Control Circuit Test Status	--	OK/Fault/Not Run	This parameter displays the state of the Ignition control circuit. The parameter displays Fault if the Ignition control circuit is open, shorted to ground, or shorted to voltage.
Cylinder 1-6 Injector Circuit Test Status	--	OK/Fault/Not Run	This parameter displays the state of the fuel injector control circuit. The parameter displays Fault if the fuel injector control circuit is open, shorted to ground, or shorted to voltage.
Cylinder 1-6 Knock Retard	--	0 Degrees	This parameter displays the knock retard as commanded by the control module for cylinders 1-6. Each cylinder is controlled individually based on both knock sensor signal inputs.
Decel. Fuel Cutoff	--	Inactive	This parameter displays the status of the operating mode of the control module used to turn off the fuel injectors and the EVAP canister purge valve during certain deceleration conditions.
Desired Exh. CMP Bank 1 or 2	Engine Idling	0 Degrees	This parameter displays the desired exhaust camshaft angle as commanded by the control module.
Desired Exh. CMP Bank 1 or 2	Engine speed at 2000 RPM	10 Degrees
Desired HO2S Bank 1 or 2 Sensor 1	--	Varies 400-700 mV	This parameter displays the voltage output from the HO2S to the control module. A lower voltage indicates a lean exhaust, while a higher voltage indicates a rich exhaust.
Desired Idle Speed	--	Approximately 650 RPM	This parameter displays the desired engine idle speed as commanded by the control module.
Desired Int. CMP Bank 1 or 2	Engine Idling	0 Degrees	This parameter displays the desired intake camshaft angle as commanded by the control module.
Desired Int. CMP Bank 1 or 2	Engine speed at 2000 RPM	10 Degrees
DTC Set This Ignition	--	No	This parameter displays Yes if a DTC set on the current ignition cycle.
EC Ignition Relay Command	--	On	This parameter displays the state of the control circuit for control module power relay as commanded by the control module.
EC Ignition Relay Circuit Test Status	--	OK/Fault/Not Run	This parameter displays the state of the EC Ignition Relay control circuit. The parameter displays Fault if the EC Ignition Relay control circuit is open, shorted to ground, or shorted to voltage.
EC Ignition Relay Feedback Signal	--	12.0-14.5 Volts	This parameter displays the voltage available at the EC ignition relay pin of the control module.
ECM Reset	--	No	This parameter displays Yes when an internal control module reset occurs. The scan tool displays NO under normal operating conditions.
ECM in VTD Fail Enable	--	No	This parameter indicates whether or not the engine control module (ECM) is in failure enable mode for the vehicle theft deterrent (VTD) system.
ECT Sensor	--	88 to 105°C (190 to 221°F)	This parameter displays the temperature of the engine coolant based on input to the control module from the engine coolant temperature (ECT) sensor.
Engine Load	Engine Idling	25-45%	This parameter displays the calculated engine load in percent based on inputs to the control module from various engine sensors.
Engine Load	Engine speed at 2,500 RPM	40-60%
Engine OFF EVAP Test Conditions Met	--	No	This parameter displays Yes if the conditions for running the Engine Off EVAP diagnostic are met.
Engine Off Time	Engine OFF	0:00:00 Seconds - Varies	This parameter displays the amount of time that has elapsed since the engine was last cycled OFF.
Engine Oil Level Switch	--	OK	This parameter displays if the level of the engine oil is within range as determined by the control module from information received from the engine oil level switch.
Engine Oil Life Remaining	--	0-100%	This parameter displays the percent of engine oil life remaining. The controller calculates the engine oil life by monitoring engine load, coolant temperature, and engine speed.
Engine Oil Pressure Sensor	--	103 kPa (15 psi) to 241 kPa (35 psi)	This parameter displays the engine oil pressure.
Engine Oil Temperature Sensor	--	97°C (204°F)	This parameter displays the engine oil temperature.
Engine Run Time	Engine Operating	0:00:00 Increments when the engine is operating	This parameter displays the time elapsed since the engine was started.
Engine Speed	Engine Cranking	Greater than 60 RPM	This parameter displays the speed of the engine crankshaft rotation from information received from the crankshaft position (CKP) sensor. If there is a CKP sensor DTC, the ECM calculates the engine speed from one of the camshaft position (CMP) sensors.
Engine Speed	Engine Idling	550-700 RPM
EVAP Monitor Complete This Ignition	--	Yes/No	This parameter displays the diagnostic monitor completion status during the current driving/monitoring cycle.
EVAP Monitor Enabled This Ignition	--	Yes/No	This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.
EVAP Purge Solenoid Circuit Test Status	--	OK/Fault/Not Run	This parameter displays the state of the evaporative emission (EVAP) purge solenoid control circuit. The parameter displays Fault if the EVAP purge solenoid control circuit is open, shorted to ground, or shorted to voltage.
EVAP Purge Solenoid Command	--	0-100%	This parameter displays the on-time or duty cycle of the EVAP canister purge solenoid commanded by the control module. Zero percent indicates no purge. One hundred percent indicates full purge.
EVAP Vent Solenoid Circuit Test Status	--	OK/Fault/Not Run	This parameter displays the state of the EVAP vent solenoid control circuit. The parameter displays Fault if the EVAP vent solenoid control circuit is open, shorted to ground, or shorted to voltage. This parameter may not change if the scan tool is used to command the EVAP vent solenoid ON.
EVAP Vent Solenoid Command	--	Venting	This parameter displays the state of the control circuit for evaporative emission (EVAP) vent solenoid as commanded by the control module.
Exh. CMP Angle Bank 1 or 2	Engine Idling	0 Degrees	This parameter displays the actual exhaust camshaft position in degrees.
Exh. CMP Angle Bank 1 or 2	Engine speed at 2000 RPM	10 Degrees
Exh. CMP Angle Bank 1 or 2 Variance	Engine Idling	0 Degrees	This parameter displays in degrees, the difference between the desired exhaust camshaft position and the actual exhaust camshaft position.
Exh. CMP Angle Bank 1 or 2 Variance	Engine speed at 2000 RPM	10 Degrees
Exh. CMP Bank 1 or 2 Command	Engine Idling	20%	This parameter displays the exhaust camshaft position in percent of range as commanded by the control module.
Exh. CMP Bank 1 or 2 Command	Engine speed at 2000 RPM	50%
Exh. CMP Solenoid Bn. 1 or 2 CircuitTest Status	--	OK/Fault/Not Run	This parameter displays the state of the exhaust camshaft actuator solenoid control circuit. The parameter displays Fault if the camshaft actuator solenoid control circuit is open, shorted to ground, or shorted to voltage.
FC Relay 1 Circuit Test Status	--	OK/Fault/Not Run	This parameter displays the state of the fan relay control circuit. The parameter displays Fault if the fan relay control circuit is open, shorted to ground, or shorted to voltage.
FC Relay 2 and 3 Circuit Test Status	--	OK/Fault/Not Run	This parameter displays the state of the fan relay control circuit. The parameter displays Fault if the fan relay control circuit is open, shorted to ground, or shorted to voltage.
FC Relay 1 Command	Engine coolant less than 108°C (226°F) A/C Off	Off	This parameter displays the control module commanded state of the fan relay control circuit.
FC Relay 1 Command	Engine coolant greater than 108°C (226°F) A/C On	On
FC Relay 2 and 3 Command	Engine coolant less than 108°C (226°F) A/C OFF	Off	This parameter displays the control module commanded state of the fan relay control circuit.
FC Relay 2 and 3 Command	Engine coolant greater than 108°C (226°F) A/C ON	On
Fuel Level	--	0-100%	This parameter displays the amount of fuel in the fuel tank in percent of range, as calculated by the control module.
Fuel Level Sensor Left Tank (Secondary) and Fuel Level Sensor Right Tank (Primary)	--	0-5 Volts	This parameter displays the voltage signal received by the control module from the fuel level sensors.
Fuel Pump Relay CircuitTest Status	--	OK/Fault/Not Run	This parameter displays the state of the fuel pump relay control circuit. The parameter displays Fault if the fuel pump relay control circuit is open, shorted to ground, or shorted to voltage.
Fuel Pump Relay Command	Ignition ON, engine OFF	Fuel pump on for 2 seconds	This parameter displays the control modules commanded state of the fuel pump relay control circuit.
Fuel Pump Relay Command	Engine idling	On
Fuel Tank Level Remaining	--	Liter/Gallon - Varies	This parameter displays the amount of fuel in liters/gallons that remains in the fuel tank as determined by the control module from information received from the left and right fuel level sensors.
Fuel Tank Pressure Sensor	Ignition ON, engine OFF	0 in H2O/mm Hg	This parameter displays the pressure/vacuum inside the fuel tank. A negative value indicates a vacuum, while a positive value indicates a pressure.
Fuel Tank Pressure Sensor	Ignition ON, engine OFF	0-5 Volts	This parameter displays the voltage signal received by the control module from the fuel tank pressure (FTP) sensor.
Fuel Tank Rated Capacity	--	17.8 Gallons (67.3 Liters)	This parameter displays the capacity of the fuel tank in liters or gallons.
Fuel Trim Learn	--	Enabled	This parameter displays Enabled when conditions are appropriate for enabling long term fuel trim corrections. This indicates that the long term fuel trim is adapting continuing amounts of short term fuel trim. If the scan tool displays Disabled, then long term fuel trim will not respond to changes in short term fuel trim.
GEN L-Terminal Signal Command	--	0-100%	This parameter displays the control modules commanded state of the voltage regulator on the generator.
Generator F-Terminal Signal	--	0-100%	This parameter displays the amount of generator on-time as commanded by the control module. The higher the percentage the greater the generator output.
HO2S 1	--	1.0 Lambda	This parameter displays the lambda output from the HO2S to the control module. A lambda below 1.0 indicates a rich exhaust, while a lambda above 1.0 indicates a lean exhaust.
HO2S 2	--	400-700 mV - Varies	This parameter displays the voltage output from the HO2S to the control module. A lower voltage indicates a lean exhaust, while a higher voltage indicates a rich exhaust.
HO2S Bank 1 or 2 Sensor 1	--	1.0 Lambda	This parameter displays the lambda output from the HO2S to the control module. A lambda below 1.0 indicates a rich exhaust, while a lambda above 1.0 indicates a lean exhaust.
HO2S Bank 1 or 2 Sensor 2	--	400-700 mV - Varies	This parameter displays the voltage output from the HO2S to the control module. A lower voltage indicates a lean exhaust, while a higher voltage indicates a rich exhaust.
HO2S Heater Monitor Complete This Ignition	--	Yes	This parameter displays the diagnostic monitor completion status during the current driving/monitoring cycle.
HO2S Heater Monitor Enabled This Ignition	--	Yes	This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.
HO2S Htr. Bn. 1 or 2 Sensor 1 or 2 CircuitTest Status	--	OK/Fault/Not Run	This parameter displays the state of the oxygen sensor heater control circuit. The parameter displays Fault if the oxygen sensor heater control circuit is open, shorted to ground, or shorted to voltage.
HO2S Htr. Bn. 1 or 2 Sensor 1 Command	--	0-99%	This parameter displays the commanded state of the heater control circuit as commanded by the control module
HO2S/O2S Monitor Complete This Ignition	--	Yes	This parameter displays the diagnostic monitor completion status during the current driving/monitoring cycle.
HO2S/O2S Monitor Enabled This Ignition	--	Yes	This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.
HO2S Sensing Element Bn. 1 or 2 Sensor 1	--	70-90 Ohms Depends on Temperature	This parameter displays the resistance of the sensing element within the control module.
HO2S Sensing Element Bn. 1 or 2 Sensor 2	--	20-300 Ohms Depends on Temperature	This parameter displays the resistance of the sensing element within the control module.
HO2S Bn. 1 or 2 Sensor 1 Module Signal	--	1-5 Volts	This parameter displays the voltage of the HO2S control transistor, which is internal to the ECM.
IAT Sensor	--	-39 to +140°C (-38 to +284°F)	This parameter displays the temperature of the air entering the air induction system based on input to the control module from the intake air temperature (IAT) sensor.
Ignition 0 Signal	--	On	This parameter displays On when the control module detects a voltage at the ignition 0 input terminal.
Ignition 1 Signal	--	B+	This parameter displays B+ when the control module detects a voltage at the ignition 1 input terminal.
Ignition 1 Signal	--	On	This parameter displays On when the control module detects a voltage at the ignition 1 input terminal.
IMRC Solenoid Circuit Status (If equipped)	--	OK/Fault/Not Run	This parameter displays the state of the intake manifold runner control (IMRC) control circuit. The parameter displays Fault if the IMRC control circuit is open, shorted to ground, or shorted to voltage
IMRC Solenoid Command (If equipped)	--	Off	This parameter displays the control modules commanded state of the IMRC solenoid.
Initial Brake Apply Signal	Brake pedal not actuated	Released	This parameter displays the state of the brake pedal that is transmitted over the serial data circuit from the electronic brake control module (EBCM).
Initial Brake Apply Signal	Brake pedal fully actuated	Applied
Injector 1-6 Command	Engine idling	0.82-1.20 ms	This parameter displays the amount of fuel injector ON time or pulse width as commanded by the control module.
Int. CMP Angle Bank 1 or 2	Engine Idling	0 Degrees	This parameter displays the actual intake camshaft position in degrees.
Int. CMP Angle Bank 1 or 2	Engine speed at 2000 RPM	10 Degrees
Int. CMP Angle Bank 1 or 2 Variance	Engine Idling	0 Degrees	This parameter displays in degrees, the difference between the desired intake camshaft position and the actual exhaust camshaft position.
Int. CMP Angle Bank 1 or 2 Variance	Engine speed at 2000 RPM	0 Degrees
Int. CMP Bank 1 or 2 Command	Engine Idling	0 Degrees	This parameter displays the intake camshaft position in percent of range as commanded by the control module.
Int. CMP Bank 1 or 2 Command	Engine speed at 2000 RPM	50 Degrees
Int. CMP Solenoid Bn. 1 or 2 CircuitTest Status	--	OK/Fault/Not Run	This parameter displays the state of the intake camshaft actuator solenoid control circuit. The parameter displays Fault if the camshaft actuator solenoid control circuit is open, shorted to ground, or shorted to voltage.
Knock Retard	--	0 Degrees	This parameter indicates the amount of spark advance the control module removes from the ignition control (IC) spark advance in response to the signal from the knock sensors.
KS 1 or 2 Signal	--	3.86-5.02 Volts	This parameters displays the voltage input to the control module from the knock sensor (KS).
Loop Status Bn 1 or 2 Sen. 1	--	Closed Loop	This parameter displays the state of the fuel control system as commanded by the control module. Closed Loop operation indicates that the control module is controlling the fuel delivery based off the oxygen sensors input signal. In Open Loop operation the control module ignores the oxygen sensor input signal and bases the amount of fuel to be delivered on other sensor inputs.
Loop Status Bn 1 or 2 Sen. 2	--	Open Loop	This parameter displays the state of the rear heated oxygen sensors as commanded by the control module. The rear sensors will not go into Closed Loop until the ECM determines that the HO2S is ready for operation.
Low EOP Indicator Command	--	Off	This parameter displays the commanded state of the low EOP lamp control circuit by the control module.
LT FT Bn. 1 or Bn.	--	0%	This parameter displays the commanded Long Term Fuel Trim correction by the control module for bank 1 or bank 2 for cruise and acceleration conditions.
LT FT Bn. 1 or Bn. 2 Idle/Decel.	--	0%	This parameter displays the commanded Long Term Fuel Trim correction by the control module for bank 1 or bank 2 for idle and deceleration conditions.
MAF Sensor	Engine Idling	3.4-6.3 g/s	This parameter displays the measured quantity of air flowing into the engine during all operating conditions.
MAF Sensor	Engine speed at 2,500 RPM	11.88 g/s
MIL CircuitTest Status	--	OK/Fault/Not Run	This parameter displays the state of the MIL control circuit. The parameter displays Fault if the MIL control circuit is open, shorted to ground, or shorted to voltage.
MIL Command	--	Off	This parameter displays the commanded state of the malfunction indicator lamp (MIL) control circuit by the control module.
Mil Requested by DTC	--	No	This parameter indicates the reason the control module illuminated the MIL. The scan tool will display YES when the MIL is requested as a result of an A or B type DTC. The scan tool will display NO if the MIL is illuminated for another reason, such as transmission DTCs.
Mileage Since DTC Cleared	--	km - miles	This parameter displays the mileage that has elapsed since any diagnostic trouble code (DTC) has been cleared from the control modules memory.
Mileage Since DTC First Failure	--	km - miles	This parameter displays the mileage that has elapsed since the first emission failure.
Mileage Since DTC Last Failure	--	km - miles	This parameter displays the mileage that has elapsed since the last emission failure.
Mileage Since MIL Requested	--	km - miles	This parameter displays the mileage that has elapsed since the control module has commanded the malfunction indicator lamp (MIL) On.
Misfire Current Cyl. 1-6	--	0	The scan tool displays a range of 0-200 counts. This parameter displays the number of misfires that have been detected during the last 200 cylinder firing events. The counters may normally display some activity, but the activity should be nearly equal for all of the cylinders, and in low numbers.
Misfire History Cyl. 1-6	--	0	The scan tool displays a range of 0-65,535 counts. The misfire history counters display the total level of misfire that has been detected on each cylinder. The misfire history counters will not update or show any activity until a misfire DTC P0300 has become active. The misfire history counters will update every 200 cylinder firing events.
Moderate Brake Apply Signal	Brake pedal not actuated	Released	This parameter displays the state of the brake pedal that is transmitted over the serial data circuit from the electronic brake control module (EBCM).
Moderate Brake Apply Signal	Brake pedal fully actuated	Applied
PNP Switch	Transmission in Park/Neutral	Park/Neutral	This parameter displays whether the transmission range selector is in park or neutral.
PNP Switch	Transmission not in Park/Neutral	In Gear
Power Enrichment	--	Inactive	This parameter displays the status of the operating mode of the control module used to increase fuel delivery during certain acceleration conditions.
Reduced Engine Power	--	Inactive	This parameter displays whether the control module is commanding reduced engine power due to a throttle actuator control (TAC) system condition.
RVS Disable 1-8 History	--	Reason for RVS Disable	This parameter displays one of the last eight reasons that powertrain has disabled remote vehicle start (RVS).
Short Term FT Bank 1 or Bank 2	--	-3% to +3%	This parameter displays the short-term correction to the fuel delivery by the control module in response to oxygen sensor 1 or 2. If the oxygen sensor indicates a lean air/fuel mixture, the control module will add fuel increasing the short term fuel trim above 0. If the oxygen sensor indicates a rich air/fuel mixture, the control module will reduce fuel decreasing the short term fuel trim below 0.
Spark	--	2-10 Degrees	This parameter displays the amount of spark advance the control module is commanding on the ignition control circuits. The control module determines the desired advance.
Starter Relay Circuit Test Status	--	OK/Fault/Not Run	This parameter displays the state of the starter relay control circuit. The parameter displays Fault if the starter relay control circuit is open, shorted to ground, or shorted to voltage. The parameter displays Indeterminate until the relay control circuit has been commanded ON. This parameter may not change if the scan tool is used to command the relay control circuit ON.
Starter Relay Command	Ignition switch not in the crank position	Off	This parameter indicates whether the control module is commanding the starter relay to go on or off.
Starter Relay Command	Ignition switch in the crank position	On
Start Up ECT	--	-39 to +140°C (-38 to +284°F)	This parameter displays the temperature of the engine coolant on start up based on input to the control module from the ECT sensor.
Start Up IAT	--	-39 to +140°C (-38 to +284°F)	This parameter displays the temperature of the intake air at start in the air induction system based on input to the control module from the IAT sensor.
Stoplamp Pedal Switch	Brake pedal not actuated	Released	This parameter displays the position of the stop lamp pedal switch input to the control module.
Stoplamp Pedal Switch	Brake pedal fully actuated	Applied
System Power Mode	--	Run	This parameter displays the position of the ignition switch.
TAC System Learned Counts	--	0	This parameter displays the steps counted in learning the throttle actuator control parameters. The last step learned is 11.
TCC Status	--	Unlocked	This parameter displays the commanded status of the torque convertor clutch.
TCM Requested Torque	--	N·m/lb ft	This parameter displays the calculated amount torque requested of the controller.
TCM Torque Increase	--	No	This parameter displays whether or not the controller has responded to a request for a torque increase.
TCS Torque Increase	--	No	This parameter displays whether or not the controller has responded to a request for a torque increase.
TCS Torque Reduction Active	--	No	This parameter displays whether the transmission control module (TCM) is reducing torque.
TCM Torque Reduction Active	--	No	This parameter displays whether EBTCM has determined a reduction in torque took place.
Torque Delivered Signal	--	0-100%	This is the calculated torque output from the engine to the transmission used by the EBTCM for the traction control system operation.
Torque Request Signal	--	0-100%	The EBTCM sends a Desired Torque Level signal request to the control module. This decreases torque from the powertrain in order to reduce wheel slip during acceleration for the traction control.
Total Fuel Trim Avg. Bank 1 or Bank 2	--	-100 to +100%	This parameter displays the overall fuel trim from the Long Term idle/decel parameter and the Long Term Fuel Trim cell.
Total Misfire Count	--	0	This parameter displays the total number of cylinder firing events that the control module detected as misfires for the last 200 crankshaft revolution sample period.
TP Desired Angle	--	0-100%	This parameter displays the desired TP angle commanded by the control module.
TP Indicated Angle	--	0-100%	This parameter displays the percent of throttle opening as calculated by the control module using information from the two TP sensors.
TP Sensor 1	--	0.5-0.8 Volts	This parameter displays the actual voltage on the TP sensor 1 signal circuit as measured by the control module.
TP Sensor 1 Learned Minimum	--	0-0.6 Volts	This parameter displays the learned minimum value of throttle position (TP) sensor 1 as recorded by the control module during the last learn procedure.
TP Sensor 2	--	4.7-4.1 Volts	This parameter displays the actual voltage on the TP sensor 2 signal circuit as measured by the control module.
TP Sensor 2 Learned Minimum	--	5.0-3.7 Volts	This parameter displays the learned minimum value of TP sensor 2 as recorded by the control module during the last learn procedure.
TP Sensors 1 and 2	--	Agree	This parameter displays Disagree when the control module detects that TP sensor 1 voltage signal is not within the correct relationship to TP sensor 2. The scan tool displays Agree under the normal operating conditions.
Traction Control Status	--	Inactive	This parameter displays Active if the electronic brake and traction control module (EBTCM) is commanding traction control.
Vehicle Security Status	--	Fuel Continued	This parameter displays the status of the vehicle theft deterrent system.
Vehicle Speed Sensor	--	Km/h mph	This parameter displays the speed of the vehicle as calculated by the transmission control module (TCM) from information received from the vehicle speed sensor (VSS).
Volumetric Efficiency	Engine Idling	5-25%	This parameter displays the calculated volumetric efficiency of the engine as calculated by the control module.
Volumetric Efficiency	Engine speed at 2,500 RPM	5-25%
VTD Auto. Learn Timer	--	Inactive	This parameter indicates that either the auto learn timer (used in the auto learn procedure to enable VTD password learning) or the seed and key timer (used in the seed and key procedure to enable VTD password learning) is active.
VTD Fuel Disable	--	Inactive	This parameter indicates the VTD system has disabled fuel.
VTD Fuel Disable Until Ign. Off	--	No	This parameter indicates the VTD system has disabled fuel for the remainder of the ignition cycle.
VTD Password learned	--	Yes	This indicates learning of the VTD password received from the platform electronics is enabled. VTD password learning is first enabled in assembly plant (prior to the manufacturer’s enable counter being set to zero) may be re-enabled using 1 of 2 procedures.
Warm Ups Since DTC Cleared	--	Counts	This parameter indicates the number of warm up cycles that have occurred Since DTCs were cleared. The scan tool will display a higher counts as more warm up cycles have occurred since the DTCs were cleared.

Engine Control Module (ECM) Scan Tool Output Controls

Output Control

Description

A/C Relay

The engine must be running and the ECM must receive an A/C request from the HVAC control module in order to enable the output control. The ECM de-energizes the A/C compressor clutch relay when you select OFF. The relay remains de-energized until you select ON.

CMP Actuator Intake/ Exhaust Bank 1 or Bank 2

This function controls the selected camshaft actuator solenoid. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 40 crankshaft degrees. The scan tool initiates the test when the following conditions are met:

•	The vehicle speed is 0 km/h (0 mph).

•	The transmission is in park or neutral.

•	The engine speed is between 1,000-1,400 RPM.

The system remains in the commanded state until cancelled by the scan tool.

CMP Sol. Intake/ Exhaust Bank 1 or Bank 2

This function controls the selected camshaft actuator solenoid. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator solenoid ON/OFF. The scan tool initiates the test when the following conditions are met:

•	The ignition is ON with the engine OFF.

•	No engine speed is detected.

The system remains in the commanded state until cancelled by the scan tool.

Cooling Fan Relay 1

Activates the cooling fan relay 1. The normal commanded state of the fan relay is NONE. The relay command status can also be monitored on the scan tool data parameter FC Relay 1 Command. The PCM allows cooling fan relay control when the following conditions are met:

•	The ignition is ON or the engine is running.

•	A/C compressor operation is not requested.

•	The engine coolant temperature is less than 106 degrees C (224 degrees F).

Cooling Fan Relay 2 & 3

Activates the cooling fan relay 2 and relay 3. The normal commanded state of the fan relays is NONE. The relay command status can also be monitored on the scan tool data parameter FC Relay 2 and 3 Command. The PCM allows cooling fan relay control when the following conditions are met:

•	The ignition is ON or the engine is running.

•	A/C compressor operation is not requested.

•	The engine coolant temperature is less than 106 degrees C (224 degrees F).

Cylinder Power Balance

Important: The Misfire Current and Misfire History parameters may not increment when using this function.

This function disables the selected fuel injector. The normal commanded state is None. The scan tool initiates the test when the following conditions are met:

•	The engine is operating and the engine idle is stable.

•	The vehicle speed is 0 km/h (0 mph).

•	There are no DTCs set for the vehicle speed sensor.

If the fuel injector was disabled for 30 seconds, fuel injector control is not allowed again on the same fuel injector for 60 seconds.

Engine Speed Control

This function controls the idle speed override in 25 RPM, 100 RPM, and 500 RPM increments, from the base idle speed to 1,400 RPM. The scan tool initiates the test when the following conditions are met:

•	The transmission is in park or neutral.

•	The engine speed is less than 1,000 RPM.

The engine speed will remain in the commanded state until cancelled by the scan tool.

EVAP Purge Solenoid

Important: The EVAP Purge Solenoid Command parameter may not change states when using this output control.

This function controls the evaporative emission (EVAP) purge solenoid valve. The normal commanded state is NONE. The system will increase or decrease the amount of purge by changing the duty cycle of the purge valve in 10 percent increments within a range of 0-100 percent. The system remains in the commanded state until cancelled by the scan tool or the fuel tank pressure (FTP) sensor exceeds -24 mm Hg (-12 inch H2O).

EVAP Purge/Seal

Important: The EVAP Purge and Vent Solenoid Command parameters may not change states when using this output control.

This function activates both the EVAP purge solenoid valve and EVAP vent solenoid to seal the EVAP system. When activated, the purge valve is commanded to 0 percent and the vent valve is commanded ON, Not-venting. The normal commanded state for both solenoids is None. Both of the solenoids remain in the commanded state until cancelled by the scan tool or the FTP sensor exceeds -24 mm Hg (-12 inch H2O).

EVAP Vent Solenoid

Important: The EVAP Vent Solenoid Command parameter may not change states when using this output control.

This function controls the EVAP vent solenoid. The normal commanded state is NONE. When commanded ON, the vent valve switches to Not-venting. The system remains in the commanded state unless one of the following conditions occur:

•	Cancelled by the scan tool

•	The EVAP canister purge solenoid is more than 0 percent, and the FTP sensor exceeds -24 mm Hg (-12 inch H2O).

Fuel Injector Balance Test

This function enables the fuel injector in order to verify the correct fuel injector flow. The ECM will pulse the selected fuel injector when the following conditions are met:

•	All instruction on the scan tool is complete.

•	A fuel injector is selected.

•	The ignition is ON with the engine OFF.

The selected fuel injector can only be flowed/pulsed once per ignition cycle.

Fuel Pump Relay

This function controls the fuel pump relay. The normal commanded state is NONE. The scan tool initiates the test when the following conditions are met:

•	There are no vehicle speed sensor DTCs set.

•	The vehicle speed is 0 km/h (0 mph).

When commanded ON/OFF, the engine control module (ECM) turns the fuel pump relay ON/OFF. If the engine is running and the fuel pump relay is commanded OFF, the engine will stall. The system remains in the commanded state for about 2 seconds or until cancelled by the scan tool or the ECM detects a vehicle speed.

Fuel Trim Reset

This function resets the fuel trim data and the learned values for the rear heated oxygen sensors.

Generator L-Terminal

Commands the generator L terminal On and Off.

HO2S Htr. Bn. 1 or 2 Sen. 1 or 2 Command

Commands HO2S heater ON, 0-100 percent in 10-percent increments while the engine is running.

Idle Learn Reset

This function allows the throttle position and the idle speed to be relearned by the ECM, once the following conditions have been met.

•	The ignition is ON with the engine OFF.

•	The ECT is between 5-85°C (41-185°F).

•	No throttle actuator control (TAC) system DTCs are set.

Idle Spark

Disables and enables idle spark advance with the engine running.

IMRC Solenoid (If Equipped)

This function controls the intake manifold runner control (IMRC) solenoid. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the IMRC solenoid ON/OFF. The scan tool initiates the test when the following conditions are met:

•	There are no vehicle speed sensor DTCs set.

•	The vehicle speed is 0 km/h (0 mph).

The system remains in the commanded state until cancelled by the scan tool.

Loop Status

This function controls the heated oxygen sensor (HO2S) loop status. The commanded states include NONE, OPEN, and CLOSED. The normal commanded state is NONE. The loop status changes as commanded, OPEN or CLOSED.

The system remains in the commanded state until cancelled by the scan tool.

Malfunction Indicator Lamp

This function controls the malfunction indicator lamp (MIL). The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the MIL ON/OFF. The system remains in the commanded state until cancelled by the scan tool.

Oil Life Reset

This output control is used to reset the engine oil life monitor from 0 to 100%.

Spark Retard

Controls the amount of spark retard. The scan tool will command an increase or decrease in the amount of spark retard in 1-degree increments, within a range of 1-10 degrees. The degrees of spark retard will remain in the commanded state until cancelled by the scan tool. The normal commanded states is NONE.

Starter Relay

Commands the starter relay ON and OFF.

Throttle Blade Control

This function controls the throttle valve in 10 percent increments. The scan tool initiates the test when the following conditions are met:

•	There are no vehicle speed sensor DTCs set.

•	The vehicle speed is 0 km/h (0 mph).

•	The ignition is ON, with the engine OFF.

•	The ECM is not commanding a throttle learn.

The system remains in the commanded state until cancelled by the scan tool.

Engine Control Module Scan Tool Information 2.0L Diesel

Table 1:	Engine Control Module Scan Tool Data
Table 2:	Engine Control Module (ECM) Scan Tool Output Controls

Use the Engine Scan Tool Data List only after the following is determined:

•	The Diagnostic System Check - Vehicle is completed.

•	No diagnostic trouble codes (DTCs)

•	On-board diagnostics are functioning properly

Only the parameters listed below are referenced in this service manual for use in diagnosis.

Engine Control Module Scan Tool Data

Parameter	System State	Expected Value	Description
Base Operating Conditions: Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop
5 Volt Reference 1, Reference 2, or Reference 3	Ignition ON	OK	This parameter displays the output voltage from the 5-volt reference circuit to the control module.
A/C Disengage Reason	A/C OFF	Invalid	This parameter displays the A/C compressor disengage reason. There are 8 different possible faults for the A/C compressor to disengage.
A/C High Side Pressure Sensor	A/C OFF	0-5 Volts	This parameter displays the voltage from the A/C high side pressure sensor signal circuit to the control module.
A/C High Side Pressure Sensor	A/C ON	0-5 Volts
A/C High Side Pressure Sensor	A/C OFF	700-900 kPa (101-130 psi)	This parameter displays the pressure from the A/C high side pressure sensor signal circuit to the control module.
A/C High Side Pressure Sensor	A/C ON	900-1300 kPa (130-174 psi)
A/C Compressor Clutch Relay Command	A/C ON	On	This parameter displays the state of the air conditioning (A/C) clutch relay control circuit as commanded by the control module.
A/C Request Signal	A/C ON	Yes	This parameter displays the state of the A/C request input to the control module from the heating, ventilation, and air conditioning (HVAC) controls.
Accelerator Pedal Position Sensors	--	0%	This parameter displays the angle of accelerator pedal position as calculated by the control module using the signals from the APP sensors.
Alternator L Terminal	--	ON	This parameter displays whether the control module is allowing the generator to operate.
Ambient Air Temperature Calculated	--	Varies	This parameter displays the calculated ambient air temperature.
APP at Idle	--	Yes	This parameter displays the angle of the accelerator pedal position (APP) as calculated by the control module using the signals from the APP sensors.
APP Sensor 1 or 2	--	APP 1-1.02 Volts APP 2-0.51 Volts	This parameter displays the voltage of each APP sensor signal circuit as measured by the control module.
APP Sensor 1 or 2 Position	--	APP 1-0% APP 2-0%	This parameter displays the percent of each APP sensor signal circuit as measured by the control module.
Aux Htr. Relay 1 Command	--	OFF	This parameter displays the commanded state of the aux heater relay 1 control circuit.
Aux Htr. Relay 2 and 3 Command	--	OFF	This parameter displays the commanded state of the aux heater relay 2 and 3 control circuit.
Aux Heater Request	--	OFF	This parameter displays the requested state of the aux heater.
BARO	--	65-104 kPa (8-16 psi) - Varies with altitude	This parameter displays the barometric pressure. The control module uses the barometric pressure sensor input for fuel control to compensate for altitude differences.
BARO	--	0-5 Volts - Varies with altitude	This parameter displays the barometric pressure in voltage. The control module uses the barometric pressure sensor input for fuel control to compensate for altitude differences.
Battery Voltage	Ignition ON	B+	This parameter displays the voltage measured at the battery circuit of the control module.
Boost Pressure Sensor	--	82-110 kPa (12-16 psi)	This parameter displays the turbocharger boost pressure inside the engine as calculated by the control module based on the signal from the Boost pressure sensor.
Boost Pressure Sensor	--	1.45-1.75 Volts	This parameter displays the voltage of the turbocharger boost pressure inside the engine calculated by the control module based on the signal from the Boost pressure sensor.
Brake Lamps Brake Pedal Switch Signal	--	Released	This parameter displays the state of the brake pedal as determined by the stop lamp pedal switch.
Calculated Air Flow	--	630-690 g/s	This parameter displays the calculated air flow into the engine. The calculation is used in several diagnostics to determine when to run the diagnostics.
Calculated DPF Flow	--	24600-27000 Liters/Hours	The parameter displays the calculated flow of DPF.
Clutch Pedal Switch	--	Applied	This parameter displays the current state of the clutch pedal as determined by the control module. The control module monitors the pedal switch on the clutch pedal for vehicles equipped with a manual transmission.
Cruise Control	Cruise Control ON	Yes	This parameter displays the status of the cruise control system as determined by the control module.
Cruise Control Disengage 1-6 History	--	Reason	This parameter displays the history of the action taking with the cruise system.
Cruise Control ON/OFF Switch	Cruise Control ON	Yes	This parameter displays the state of the cruise ON/OFF switch input to the control module.
Cruise Control Release Brake Pedal Switch	--	Released	This parameter displays the state of the brake pedal as determined by the control module. The control module monitors the pedal switch on the brake pedal for vehicles equipped with an automatic transmission. The control module uses this information to release the torque convertor clutch when the brake pedal is applied.
Cruise Resume/Accelerator Switch	Cruise Resume/Accel. Switch ON	On	This parameter displays the state of the cruise Resume/Accel switch input to the control module from the cruise control system.
Cruise Control Set/Coast Switch	Cruise Set/Coast Switch ON	On	This parameter displays the state of the cruise Set/Coast switch input to the control module from the cruise control system.
Cooling Fan Control 1, Control 2, or Control 3 Command	Fans Commanded ON	On	This parameter displays the control module commanded state of the fan relay control circuits.
Cylinder Air	--	240.00-280.00 mg/stk	This parameter displays the actual amount of cylinder air.
Desired Boost Pressure	--	98 kPa	This parameter displays the desired turbocharger boost pressure inside the engine as calculated by the control module based on the signal from the Boost pressure sensor.
Desired Cylinder Air	--	240.00-280.00 mg/stk	This parameter displays the difference between the actual amount of cylinder air and the desired amount of cylinder air.
Desired Fuel Rail Pressure	--	42500.0-44500.0 kPa 6215.0-6265.0 psi	This parameter displays the desired fuel rail pressure as calculated by the control module. This value is calculated based on engine speed, engine load, and sensor inputs.
Desired Idle Speed	--	700-800 RPM	This parameter displays the desired engine idle speed as commanded by the control module.
Distance Since DPF Indicator ON without Regeneration	--	Varies	This parameter displays the mileage that has elapsed since the diesel particulate filter indicator was illuminated without a regeneration occurrence.
Distance Since Last DPF Regeneration	--	Varies	This parameter displays the mileage that has elapsed since the last diesel particulate filter regeneration has occurred.
DPF Differential Pressure Particulate Filter Pressure Variance	--	Varies	This parameter displays the percent calculated by the control module, based on the input from the exhaust gas temperature sensors when the particulate filter is full and needs a particulate filter regeneration.
DPF Differential Pressure Particulate Filter Pressure Variance	--	0.40-0.60 Volts	This parameter displays the voltage calculated by the control module, based on the input from the exhaust gas temperature sensors when the particulate filter is full and needs a particulate filter regeneration.
DPF Indicator Command	--	OFF	This parameter displays the commanded state of the dpf indicator lamp control circuit.
DPF Regen Command	--	0 Counts	The parameter displays the DPF regeneration command.
DPF Regen Flow Resistance	--	0.000 pa/m³/h 0.000 psi/cfm	This parameter displays the difference between the front and rear pressures at the DPF as calculated by the ECM.
DPF Regeneration Inhibit	--	No	The parameter displays if the DPF regeneration was inhibited.
DPF Regeneration Interrupted	--	No	The parameter displays if the DPF regeneration was interrupted.
DPF Soot Mass	--	2g-8g	This parameter displays the amount of calculated soot in exhaust particulate filter.

Cylinders 1-4 Pilot Injection Command	--	360-380 microseconds	This parameter displays the commanded on time of the fuel injectors for the pilot injection pulse. The scan tool will display a higher value for a longer injection pulse.
ECM Authentication Status	Ignition ON	Valid	This parameter displays the status of the control module this ignition cycle. The scan tool will display valid when an internal control module reset has occurred this ignition cycle. The scan tool will display invalid when no internal control module reset has occurred this ignition cycle.
ECM Challenge Status	Ignition ON	Invalid	This parameter displays the status of the control module this ignition cycle. The scan tool will display valid when an internal control module reset has occurred this ignition cycle. The scan tool will display invalid when no internal control module reset has occurred this ignition cycle.
ECM Response Source	Ignition ON	Normal	This parameter displays the status of the control module response this ignition cycle.
ECT Sensor	--	-39 to +140°C ( -38 to +284°F)	This parameter displays the temperature of the engine coolant based on input to the control module from the engine coolant temperature (ECT) sensor.
ECT Sensor	--	0-5 Volts	This parameter displays the voltage calculated by the control module from the engine coolant temperature (ECT) sensor.
EGR Position Command	--	40-55%	This parameter displays the percent of the duty cycle commanded by the control module.
EGR Solenoid Valve Command	--	40-55%	This parameter displays the percent of the EGR solenoid commanded by the control module.
EGR Solenoid Valve Command	--	OFF	This parameter displays the state of the control circuit for EGR solenoid as commanded by the control module.
Engine Load	Engine Idling	20-35%	This parameter displays the percent of the calculated engine load based on inputs to the control module from various engine sensors.
Engine Load	Engine speed at 2,500 RPM	15-25%
Engine Oil Level Switch	--	OK	This parameter displays the status of the engine oil level switch as determined by the control module. The control module uses this information to turn on the low engine oil lamp if the engine oil level remains approximately 1 quart low for a sufficient amount of time.
Engine Oil Pressure Switch	--	OK	This parameter displays the pressure of the engine oil calculated by the control module using a signal from the engine oil pressure (EOP) sensor.
Engine Run Time	Engine Operating	0:00:00 Increments when the engine is operating	This parameter displays the time elapsed since the engine was started.
Engine Speed	Engine Cranking	Greater than 60 RPM	This parameter displays the speed of the engine crankshaft rotation from information received from the crankshaft position (CKP) sensor. If there is a CKP sensor DTC, the ECM calculates the engine speed from one of the camshaft position (CMP) sensors.
Engine Speed	Engine Idling	Approximately 750-850 RPM
Exhaust Gas Temperature Sensor 1 or 2	--	EGT 1 - +110°C to +140°C ( +230°F to +284°F) EGT 2 - +80°C to +120°C ( +176°F to +248°F)	This parameter displays the temperature of the exhaust gas calculated by the control module based on the input from the exhaust gas temperature sensors.
Exhaust Gas Temperature Sensor 1 or 2	--	EGT 1 - 1.00-1.15 Volts EGT 2 - 0.90-1.10 Volts	This parameter displays the voltage calculated by the control module based on the input from the exhaust gas temperature sensors.
Fuel Filter Heater Command	--	OFF	This parameter displays the control module commanded state of the fuel heater control circuit.
Fuel Level Sensor	--	0-100%	This parameter displays the percent of fuel in the fuel tank calculated by the control module.
Fuel Level Sensor Left Tank or Fuel Level Sensor Right Tank	--	0-5 Volts	This parameter displays the voltage received by the control module from the sensor used to monitor the fuel level inside the fuel tanks.
Fuel Pressure Regulator 1	--	1300-1400 mA	This parameter displays the control modules commanded state of the fuel rail pressure regulator 1.
Fuel Pressure Regulator 2	--	500-600 mA	This parameter displays the control modules commanded state of the fuel rail pressure regulator 2.
Fuel Pressure Regulator 2 Control Circuit Command	--	20%	This parameter displays the percent of the fuel rail pressure regulator duty cycle commanded by the control module.
Fuel Pump Command	--	34%	This parameter displays the percent of the control modules commanded state of the fuel pump.
Fuel Pump Relay Command	Ignition ON, engine OFF	Fuel pump on for 2 seconds	This parameter displays the control modules commanded state of the fuel pump relay control circuit.
Fuel Pump Relay Command	Engine idling	On
Fuel Rail Pressure Sensor	--	42800-43800 kPa (6207-6352 psi)	This parameter displays the fuel rail pressure calculated by the control module using the signal from the fuel rail pressure (FRP) sensor.
Fuel Rail Pressure Sensor	--	1.40-1.50 Volts	This parameter displays the voltage of the fuel rail pressure calculated by the control module using the signal from the fuel rail pressure (FRP) sensor.
Fuel Temperature Sensor	--	25 to 40°C (77 to 104°F)	This parameter displays the fuel temperature calculated by the control module based on input from the fuel temperature sensor.
Fuel Temperature Sensor	--	2.80 Volts	This parameter displays the voltage calculated by the control module based on input from the fuel temperature sensor.
Generator F Terminal Signal	--	25-35%	This parameter displays the commanded state of the generator by the control module.
Glow Plug	--	0%	This parameter displays the percent of the voltage supply to the glow plugs as measured by the control module.
Glow Plug Command	--	OFF	This parameter displays the control module commanded state of the glow plug.
Glow Plug Lamp Command	--	OFF	This parameter displays the commanded state of the glow plug lamp circuit by the control module.
IA Flow Valve Motor Command	--	55-65%	This parameter displays the percent of the control modules commanded state of the intake air flow valve.
IAT Sensor 1 or Sensor 2	--	-39 to +140°C (-38 to +284°F)	This parameter displays the temperature of the air entering the engine air duct calculated by the control module based on the input from the intake air temperature sensors.
Ignition 0 Signal	Ignition ON	Active	This parameter displays the voltage measured at the ignition 0 circuit of the control module. Voltage is applied to the control module when the ignition switch is in the ignition 0 position.
Ignition 1 Signal	Ignition ON	Active	This parameter displays the voltage measured at the ignition 1 circuit of the control module. Voltage is applied to the control module when the ignition switch is in the ignition 1 position.
Immobilizer Auto Learn Counter	--	0 Counts	This parameter displays the status of the theft deterrent system password learn.
Immobilizer Password Learn Enabled	Ignition ON	No	This parameter indicates the status of the theft deterrent system password learn.
Immobilizer Password Programmed	--	Yes	This parameter indicates the status of the immobilizer system. The scan tool will display YES if the immobilizer system is ready to be programmed.
Immobilizer Security Code Accepted	Ignition ON	No	This parameter indicates the status of the theft deterrent system security code.
Immobilizer Security Code Lockout	Ignition ON	Active	This parameter Indicates if the theft deterrent system is disabling fuel delivery.
Immobilizer Security Code Programmed	--	No	This parameter indicates the status of the security system.
Immobilizer System State	--	Release	This parameter indicates the status of the immobilizer system.
MAF Sensor	--	On	This parameter indicates the quantity calculated by the control module based on a signal from the mass air flow (MAF) Sensor.
Main Injection Fuel Rate	--	6.5 mm³	This parameter displays the air to fuel ratio based on the oxygen sensor inputs. The ECM uses the fuel trims to adjust fueling in order to attempt to maintain a certain air fuel ratio.
Main Injection Timing	--	On	This parameter displays the current timing of the main injection pulse as calculated by the control module.
MAP Sensor	--	95-104 kPa	This parameter indicates the manifold absolute pressure inside the engine as calculated by the control module based on the signal from the manifold absolute pressure (MAP) sensor.
MIL Command (MIL)	--	Off	This parameter displays the commanded state of the malfunction indicator lamp (MIL) control circuit by the control module.
Pilot Injection Trim Average	--	10-36 microseconds	This parameter displays the average commanded on time of the fuel injectors for the pilot injection pulse.
Park/Nuetral Position Switch	--	Park/Neutral	This parameter displays whether the transmission range selector is in park/neutral or in gear.
Starter Relay Command	--	Off	This parameter displays the commanded state of the starter relay.
Turbocharger Vane Position Solenoid Valve Command	TCC Enable Solenoid Command ON	80%	This parameter displays the percent of the vane position control solenoid from the control module.
Throttle Position Sensor	--	55-70%	This parameter displays the percent of throttle opening as calculated by the control module using information from the TP sensor.
Vehicle Speed Sensor	--	0 Km/h 0 mph	This parameter displays the speed of the vehicle as calculated by the transmission control module (TCM) from information received from the vehicle speed sensor (VSS).
Water In Fuel Sensor	--	Off	This parameter displays the commanded state of the water in fuel lamp by the control module.

Engine Control Module (ECM) Scan Tool Output Controls

Output Control

Description

A/C Compressor Clutch Relay

Note: The A/C Relay Command parameter may not change states when using this output control.

This function activates the A/C compressor relay. The normal commanded state of the A/C relay is OFF. The A/C compressor will turn ON/OFF when commanded ON/OFF. The system remains in the commanded state for approximately 5 seconds. The engine control module (ECM) will inhibit the operation of the A/C relay when the ambient air temperature is low.

Alternator Lamp

This function activates the alternator lamp. The glow plug indicator lamp will remain illuminated until cancelled by the scan tool.

Aux Heater Relay 1

Note: This function is only allowed with the ignition ON, engine OFF.

This function controls the aux heater relay 1.

Aux Heater Relay 2 & 3

Note: This function is only allowed with the ignition ON, engine OFF.

This function controls the aux heater relays 2 and 3.

Cooling Fan Relay 1

This function controls the low speed cooling fan relay. When commanded ON, the cooling fan will turn ON at low speed for approximately 5 seconds.

Cooling Fan Relays 2 & 3

This function controls the high speed cooling fan relay. When commanded ON, the cooling fan will turn ON at high speed.

Cooling Fan Relays 1, 2 & 3

This function controls the high speed cooling fan relay. When commanded ON, the cooling fan will turn ON at high speed.

Cranking Speed Test

Note: This function is only allowed with the ignition ON, engine OFF.

This function enables the ECM to detect engine speed of each cylinder without activating the fuel injectors.

Cruise Lamp

This function activates the cruise control lamp. The cruise control indicator lamp will remain illuminated until cancelled by the scan tool.

Desired Idle Speed Adjustment

Note: This function is only allowed with the engine idling.

This function adjusts the engine speed in 25, 100, or 500 RPM increments between 600-1500 RPM. The Device Control will not change unless changed or cancelled by the scan tool.

DPF Indicator

This function activates the DPF lamp. The DPF indicator lamp will remain illuminated until cancelled by the scan tool.

DPF Reset Replace DPF

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values for the diesel particulate filter in the ECM after the DPF has been replaced.

DPF Reset Replace ECM

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values for the diesel particulate filter in the ECM after the ECM has been replaced.

DPF Reset Replace Injectors

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values for the diesel particulate filter in the ECM after one or more injectors have been replaced.

DPF Reset Replace Pressure Sensor

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values for the diesel particulate filter in the ECM after the DPF pressure sensor has been replaced.

EGR Solenoid Valve

This function opens or closes the exhaust gas recirculation (EGR) solenoid. The EGR solenoid increases or decreases in 10 percent increments. The device control will not change unless changed or cancelled by the scan tool.

Engine High Temp. Lamp

This function activates the engine high temperature lamp. The engine high temperature lamp will remain illuminated until cancelled by the scan tool.

Engine Oil Life Reset

This function turns OFF the change oil lamp and resets the values in the ECM.

Fuel Filter Heater

This function activates the fuel heater relay ON or OFF. The Device Control will not change unless changed or cancelled by the scan tool.

Fuel Pump Enable

Note: This function is only allowed with the ignition ON, engine OFF.

This function activates the fuel transfer pump or prime pump (depending on application) ON or OFF. The Device Control will not change unless changed or cancelled by the scan tool.

Fuel Quantity Test

Note: This function is only allowed with the engine idling.

This function enables the engine control module (ECM) to detect the fuel quantity in each cylinder.

Fuel Trim Reset

This function resets the fuel trim data in all fuel trim cells.

Generator L-Terminal

Note: This function is only allowed with the engine idling.

This function controls the system voltage. When commanded ON, normal system voltage output is present. When commanded OFF, system voltage output is no longer present, Ignition 1 signal continues to drop, Gen L-Terminal goes to OFF and Gen F-Terminal continues to drop.

Glow Plugs

This function activates the Glow Plug Controller ON or OFF. The Device Control will be aborted after 12 seconds for the first activation, and after 5 seconds for every other activation. The Device Control is inhibited if the engine is running.

Glow Plug Lamp

This function activates the glow plug indicator lamp. The glow plug indicator lamp will remain illuminated until cancelled by the scan tool.

Idle Speed Control

Note: This function is only allowed with the engine idling.

This function adjusts the engine speed in 25, 100, or 500 RPM increments between 600-1500 RPM. The Device Control will not change unless changed or cancelled by the scan tool.

Idle Speed Test

Note: This function is only allowed with the engine idling.

This function enables the ECM to detect engine speed of each cylinder without making any fuel correction.

Malfunction Indicator Lamp (MIL)

This function activates the malfunction indicator lamp (MIL). The MIL will remain illuminated until cancelled by the scan tool.

Reset Injection Value - All Cyl.

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values in the ECM after all the fuel injectors have been replaced.

Reset Injection Value - Cyl. 1

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values in the ECM after cylinder 1 fuel injector has been replaced.

Reset Injection Value - Cyl. 2

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values in the ECM after cylinder 2 fuel injector has been replaced.

Reset Injection Value - Cyl. 3

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values in the ECM after cylinder 3 fuel injector has been replaced.

Reset Injection Value - Cyl. 4

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned values in the ECM after cylinder 4 fuel injector has been replaced.

Reset Injection Value - ECM

Note: This function is only allowed with the ignition ON, engine OFF.

This function resets the learned fuel injector values in the ECM after the ECM has been replaced.

Throttle Blade Control

Note: This function is only allowed with the ignition ON, engine OFF.

This function opens or closes the throttle blade. The throttle blade increases or decreases in 10 percent increments. The scan tool initiates the test when the following conditions are met:

•	There are no vehicle speed sensor DTCs set.

•	The vehicle speed is 0 km/h (0 mph).

•	The ignition is ON, with the engine OFF.

•	The ECM is not commanding a throttle learn.

The system remains in the commanded state until cancelled by the scan tool.

Turbocharger Vane Position Solenoid Vlave

Note: This function is only allowed with the engine idling.

Cycles the turbocharger vane position solenoid to 95 percent boost and back to 0 percent boost. The device control is limited to engine speeds less than 2,000 RPM.

Engine Control Module Scan Tool Information 2.4L

Table 1:	Engine Control Module Scan Tool Data
Table 2:	Engine Control Module (ECM) Scan Tool Output Controls

Use the Engine Scan Tool Data List only after the following is determined:

•	The Diagnostic System Check - Vehicle is completed.

•	No diagnostic trouble codes (DTCs)

•	On-board diagnostics are functioning properly

Only the parameters listed below are referenced in this service manual for use in diagnosis.

Engine Control Module Scan Tool Data

Parameter	System State	Expected Value	Description
Base Operating Conditions: Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop
A/C High Side Pressure	A/C OFF	1.25-1.50 Volts	This parameter displays the voltage from the A/C high side pressure sensor signal circuit to the control module.
A/C High Side Pressure	A/C ON	2.10-2.40 Volts
A/C Relay Command	A/C ON	On	This parameter displays the state of the air conditioning (A/C) clutch relay control circuit as commanded by the control module.
A/C Request Signal	A/C ON	Yes	This parameter displays the state of the A/C request input to the control module from the heating, ventilation, and air conditioning (HVAC) controls.
Actual EGR Position	--	0%	This parameter displays the actual EGR pintle position in percentage as commanded by the control module.
Actual EGR Position	--	0.70-0.90 Volts	This parameter displays the actual EGR pintle position in volts as commanded by the control module.
Ambient Air Temperature Calculated	--	Varies	This parameter displays the ambient air temperature.
APP Indicated Angle	--	0%	This parameter displays the angle of the accelerator pedal position (APP) as calculated by the control module using the signals from the APP sensors.
APP Sensor 1or 2	--	APP Sensor 1-1.00 Volts APP Sensor 2-0.50 Volts	This parameter displays the actual voltage of each APP sensor signal circuit as measured by the control module.
APP Sensor 1and APP Sensor 2 Disagree	--	No	This parameter displays if the control module detects the signal voltage from APP sensor 1 is not in correct relationship to APP sensor 2.
BARO	--	65-104 kPa (8-16 psi) - Varies with altitude	This parameter displays the barometric pressure. The control module uses the barometric pressure sensor input for fuel control to compensate for altitude differences.
Change Engine Oil Indicator Command	--	Off	This parameter displays the control module commanded state of the change engine oil indicator.
CKP Active Counter	--	0-255 counts	This parameter displays the crankshaft position (CKP) active counts. If the control module does not detect a signal from the CKP sensor, the counter will not increment.
Crank Request Signal	Engine Cranking	Yes	This parameter displays whether the ignition switch has been cycled to the crank position requesting the control module to activate the starter relay.
Cruise Active	Cruise Control ON	On	This parameter displays the status of the cruise control system as determined by the control module.
Cruise Cancel Switch	Cruise Control ON	Active	This parameter displays the status of the cruise cancel switch as determined by the control module.
Cruise Control Switch	--	Normal	This parameter displays the status of the cruise control switch as determined by the control module.
Cruise ON/OFF Switch	Cruise Control ON	On	This parameter displays the state of the ON/OFF switch input to the control module.
Cruise Resume/Accel. Switch	Cruise Resume/Accel. Switch ON	On	This parameter displays the state of the Resume/Accel switch input to the control module from the cruise control system.
Cruise Set/Coast Switch	Cruise Set/Coast Switch ON	On	This parameter displays the state of the Set/Coast switch input to the control module from the cruise control system.
Decel Fuel Cut Off	--	Inactive	This parameter displays the status of the operating mode of the control module used to turn off the fuel injectors during certain deceleration conditions.
Desired Idle Speed	--	650-850 RPM	This parameter displays the desired engine idle speed as commanded by the control module.
Desired Torque ABS/TCS	--	99%	This parameter displays the desired torque output from the engine to the transmission used by the EBTCM for the traction control system operation.
Distance Since DTC Cleared	--	Varies km-miles	This parameter displays the mileage that has elapsed since the DTC cleared.
Distance Since First Failure	--	Varies km-miles	This parameter displays the mileage that has elapsed since the first emission failure.
ECT Sensor	--	-39 to +140°C ( -38 to +284°F)	This parameter displays the temperature of the engine coolant based on input to the control module from the engine coolant temperature (ECT) sensor.
EGR Closed Valve Pintle Position	--	15%	This parameter displays the percent of the duty cycle commanded by the control module.
EGR Flow Test Count	--	Counts	This parameter displays the number of EGR flow test samples collected during the current ignition cycle.
EGR Position Variance	--	Counts	This parameter displays the difference between the actual command of the EGR valve and the desired position of the EGR valve. This parameter displays the state of the EVAP vent solenoid as commanded by the control module.
EGR Solenoid Command	--	0 100%	This parameter displays the state of the control circuit for EGR solenoid as commanded by the control module.
Engine Load	Engine Idling	2%	This parameter displays the calculated engine load in percent based on inputs to the control module from various engine sensors.
Engine Load	Engine speed at 2,500 RPM	6%
Engine Oil Pressure Switch	--	OK	This parameter displays the pressure of the engine oil calculated by the control module using a signal from the engine oil pressure (EOP) sensor.
Engine Run Time	--	0:00:00 Increments when the engine is operating	This parameter displays the time elapsed since the engine was started.
Engine Speed	Engine Cranking	Greater than 60 RPM	This parameter displays the speed of the engine crankshaft rotation from information received from the crankshaft position (CKP) sensor. If there is a CKP sensor DTC, the ECM calculates the engine speed from one of the camshaft position (CMP) sensors.
Engine Speed	Engine Idling	Approximately 650-850 RPM
EVAP Purge Solenoid Command	--	0-100%	This parameter displays the on-time or duty cycle of the EVAP canister purge solenoid commanded by the control module. Zero percent indicates no purge. One hundred percent indicates full purge.
Fan Relay 1	Fan ON	On	This parameter displays the control module commanded state of the fan relay control circuit.
Fan Relay 2	Fan ON	On	This parameter displays the control module commanded state of the fan relay control circuit.
Fuel Level Sensor	--	0-100%	This parameter displays the amount of fuel in the fuel tank in percent of range, as calculated by the control module.
Fuel Level Sensor Left Tank	--	0-5 Volts	This parameter displays the voltage signal received by the control module from the fuel level sensor.
Fuel Level Sensor Right Tank	--	0-5 Volts	This parameter displays the voltage signal received by the control module from the fuel level sensor.
Fuel Pump Relay Command	Ignition ON, engine OFF	Fuel pump on for 2 seconds	This parameter displays the control modules commanded state of the fuel pump relay control circuit.
Fuel Pump Relay Command	Engine idling	On
Fuel Tank Level Remaining	Ignition ON	Varies gallons/liters	This parameter displays in gallons/liters the amount of fuel in the fuel tank calculated by the control module.
Fuel Tank Pressure Sensor	--	0-5 Volts	This parameter displays the voltage signal received by the control module from the fuel tank pressure (FTP) sensor.
Fuel Trim Learn	--	Disabled	This parameter displays Enabled when conditions are appropriate for enabling long term fuel trim corrections. This indicates that the long term fuel trim is adapting continuing amounts of short term fuel trim. If the scan tool displays Disabled, then long term fuel trim will not respond to changes in short term fuel trim.
HO2S Sensor 1 or Sensor 2	--	Varies 400-800 mV	This parameter displays the amperage of the HO2S sensors by the control module.
HO2S Sensor 1 or Sensor 2 Command	--	0%	This parameter displays the percentage of the HO2S heater commanded by the control module.
HO2S 1 or Sensor 2 Heater	--	Fluctuates On/Off	This parameter displays the commanded state of the heater control circuit as commanded by the control module.
IAT Sensor	--	-39 to +140°C (-38 to +284°F)	This parameter displays the temperature of the air entering the air induction system based on input to the control module from the intake air temperature (IAT) sensor.
Ignition Accessory Signal	--	On	This parameter displays when the control module detects a voltage at the ignition accessory input terminal.
Ignition 1	--	B+	This parameter displays B+ when the control module detects a voltage at the ignition 1 input terminal.
Immobilizer State	Ignition ON	Release	This parameter indicates the status of the immobilizer system.
Injector PWM	--	0-9 ms	This parameter displays the average pulse width of the fuel injectors as determined by the control module.
Knock Detected Cyls. 1-4	--	No	This parameter displays if the control module detects knock activity in any cylinder.
Knock Retard	--	0%	This parameter indicates the amount of spark advance the control module removes from the ignition control (IC) spark advance in response to the signal from the knock sensors.
Long Term FT	--	-3 to +3%	This parameter displays the commanded Long Term Fuel Trim correction by the control module.
Loop Status	--	Closed Loop	This parameter displays the state of the fuel control system as commanded by the control module. Closed Loop operation indicates that the control module is controlling the fuel delivery based off the oxygen sensors input signal. In Open Loop operation the control module ignores the oxygen sensor input signal and bases the amount of fuel to be delivered on other sensor inputs.
Low Engine Oil Level Indicator Command	--	Off	This parameter displays the state of the engine oil level indicator lamp to the instrument panel (IP) cluster as requested by the control module.
Low Oil Pressure Warning	--	Off	This parameter displays the state of the low oil pressure warning lamp to the instrument panel (IP) cluster as requested by the control module.
MAF Sensor	--	2.50-5.50 g/s	This parameter displays the measured quantity of air flowing into the engine during all operating conditions.
MAP Sensor	--	25-50 kPa	This parameter displays the pressure from the MAP sensor to the control module.
MAP Sensor	--	0-5 Volts	This parameter displays the signal voltage from the MAP sensor to the control module.
MIL Command	MIL Command ON	On	This parameter displays the commanded state of the malfunction indicator lamp (MIL) control circuit by the control module.
Misfire Current Cyl. 1-4	--	0-255 Counts	This parameter displays the number of misfires that have been detected during the last 200 cylinder firing events. The counters may normally display some activity, but the activity should be nearly equal for all of the cylinders, and in low numbers.
Purge Learned Memory B 1	--	0 Counts	This parameter displays the learned minimum value of the EGR valve as recorded by the control module during the last learn procedure.
Reduced Engine Power	--	Inactive	This parameter displays the status of the operating mode of the control module used to reduce engine power to prevent catalytic converter or engine damage or due to a Throttle Actuator Control (TAC) system failure.
Short Term FT	--	-3 to +3%	This parameter displays the short-term correction to the fuel delivery by the control module in response to oxygen sensor. If the oxygen sensor indicates a lean air/fuel mixture, the control module will add fuel increasing the short term fuel trim above 0. If the oxygen sensor indicates a rich air/fuel mixture, the control module will reduce fuel decreasing the short term fuel trim below 0.
Spark	--	-20 to +40 Degrees	This parameter displays the amount of spark advance the control module is commanding on the ignition control circuits. The control module determines the desired advance.
Starter Relay Command	Engine Cranking	On	This parameter indicates whether the control module is commanding the starter relay to go on or off.
Start Up ECT	--	-39 to +140°C (-38 to +284°F)	This parameter displays the temperature of the engine coolant on start up based on input to the control module from the ECT sensor.
TCC/Cruise Brake Pedal Switch	Cruise ON	Released	This parameter displays the state of the brake pedal as determined by the control module. The control module monitors the pedal switch on the brake pedal for vehicles equipped with an automatic transmission. The control module uses this information to release the torque convertor clutch when the brake pedal is applied.
Torque Delivered	--	10-20%	This parameter displays the calculated torque output from the engine to the transmission used by the EBTCM for the traction control system operation.
Total Knock Retard	--	0%	This parameter displays the percentage of total knock retard detected by the control module.
Total Misfire Current Count	--	0 Counts	This parameter displays the total number of cylinder firing events that the control module detected as misfires for the last 200 crankshaft revolution sample period.
TP Indicated Angle	--	1-3%	This parameter displays the actual TP angle indicated by the control module using information from the two TP sensors.
TP Sensor 1 or Sensor 2	--	TP Sensor 1-0.65 Volts TP Sensor 2-0.63 Volts	This parameter displays the percent of throttle opening as calculated by the control module using information from the throttle position (TP) sensor.
TP Sensors Disagree	--	No	This parameter displays if the control module detects the signal voltage from APP sensor 1 is not in correct relationship to APP sensor 2.
Vehicle Speed	--	0 Km/h 0 mph	This parameter displays the speed of the vehicle as calculated by the transmission control module (TCM) from information received from the vehicle speed sensor (VSS).

Engine Control Module (ECM) Scan Tool Output Controls

Output Control

Description

A/C Relay

This function activates the A/C compressor relay. The normal commanded state of the A/C relay is None. The A/C compressor will turn ON/OFF when commanded ON/OFF. The system remains in the commanded state until cancelled by the scan tool. This output can also be monitored on the scan tool data parameter A/C Relay Command. The engine control module (ECM) will inhibit the operation of the A/C relay when the ambient air temperature is low.

EGR Solenoid

Important: The EGR Position Sensor parameter may not properly change states when using this output control.

This function activates the exhaust gas recirculation (EGR) solenoid that controls EGR valve position. The normal commanded state is None. The system will increase or decrease the amount of EGR opening within a range of 0-100 percent when commanded ON and OFF. This output can also be monitored on the scan tool data parameter EGR Position Sensor. The system remains in the commanded state until cancelled by the scan tool. If the engine is running, too much EGR will result in a rough idle and/or stalling.

EVAP Purge Solenoid

Important:

•	This function may be disabled if there is an EVAP DTC set.

•	The EVAP Purge Solenoid Command parameter may not properly change states when using this output control.

This function controls the EVAP purge solenoid valve. The normal commanded state is None. The system will increase or decrease the amount of purge by changing the duty cycle of the purge valve in 5 percent increments within a range of 0-100 percent. The system remains in the commanded state until cancelled by the scan.

Fan Relay 1

This function operates both cooling fans at low speed by enabling the fan low speed relay. The normal commanded state of the relay is None. When commanded ON/OFF, the cooling fan turns ON/OFF. The system remains in the commanded state until cancelled by the scan tool. The ECM allows relay control when the following conditions are met:

•	The ignition is ON, with the engine OFF.

•	The engine is running.

•	The transmission must be in Park or Neutral.

•	The A/C request is OFF.

•	The engine coolant temperature is less than a predetermined value.

Fan Relay 2

This function operates one engine cooling fan at high speed by enabling the fan high speed relay. The normal commanded state of the relay is None. When commanded ON/OFF, the cooling fan turns ON/OFF. The system remains in the commanded state until cancelled by the scan tool. The ECM allows relay control when the following conditions are met:

•	The ignition is ON, with the engine OFF.

•	The engine is running.

•	The transmission must be in Park or Neutral.

•	The A/C request is OFF.

•	The engine coolant temperature is less than a predetermined value.

Fuel Pump Relay

Important: DTCs may set when using this output control.

This function controls the fuel pump relay. The normal commanded state is None. The scan tool initiates the test when the following conditions are met:

•	There are no vehicle speed sensor DTCs set.

•	The vehicle speed is 0 km/h (0 mph).

When commanded ON/OFF, the ECM turns the fuel pump relay ON/OFF. If the engine is running and the fuel pump relay is commanded OFF, the engine will stall. This output can also be monitored on the scan tool data parameter Fuel Pump Relay Command. The system remains in the commanded state until cancelled by the scan tool or the ECM detects a vehicle speed.

Engine Speed

This function controls the idle speed override in 5 percent increments, from the base idle speed to 2,100 RPM. The scan tool initiates the test when the following conditions are met:

•	The transmission is in park or neutral.

•	The engine speed is less than 1,000 RPM.

The engine speed will remain in the commanded state until cancelled by the scan tool.

Ignition Coil Test 1,4 and 2,3

This function controls the ignition coils. The normal commanded state is None. The ignition coils will turn ON/OFF when commanded ON/OFF. The ignition coil remains in the commanded state until cancelled by the scan tool.

Misfire Graphic

Graphs the accumulated misfires occurring in each cylinder. The scan tool allows for a reset of the misfire graph.

Throttle Position

This function controls the throttle valve in 10 percent increments. The scan tool initiates the test when the following conditions are met:

•	There are no vehicle speed sensor DTCs set.

•	The vehicle speed is 0 km/h (0 mph).

•	The ignition is ON, with the engine OFF.

•	The ECM is not commanding a throttle learn.

The system remains in the commanded state until cancelled by the scan tool.