The Engine Scan Tool Data List contains all engine related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
Use the Engine Scan Tool Data List only after the following is determined:
| • | The Engine Controls Diagnostic System Check is completed |
| • | No diagnostic trouble codes (DTCs). |
| • | On-board diagnostics are functioning properly |
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. If all values are within the typical range described below, refer to Symptoms - Engine Controls for diagnosis.
The column labeled Data List indicates where a parameter can be located on the scan tool. Refer to the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:
Eng 1: Engine Data 1Eng 2: Engine Data 2
EGR: EGR Data
EVAP: EVAP Data
Fuel Trim: Fuel Trim Data
TAC: TAC Data
Misfire: Misfire Data
Cruise: Cruise Control Data
ODD: Output Driver Data
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off/Brake Pedal Released | |||
3X Crank Sensor | Eng 2 | RPM | Varies |
18X Crank Sensor | Eng 2 | RPM | Varies |
1-2 Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
2-3 Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
A/C High Side Pressure Sensor | Eng 2 | kPa/Volts/PSI | Varies |
A/C Off For WOT | Eng 2 | Yes/No | No |
A/C Pressure Disable | Eng 2 | Yes/No | No |
A/C Relay Circuit Status | ODD | OK/Fault/Invalid State | OK |
A/C Relay Command | Eng 1, 2, EGR, Misfire | On/Off | On |
A/C Request Signal | Eng 2 | Yes/No | No |
Air Fuel Ratio | Eng 2, Fuel Trim | Ratio | 14.2:1-14.7:1 |
APP Average | TAC | Counts | 0 |
APP Indicated Angle | Eng 1, Eng 2, EGR, EVAP, Fuel Trim, Cruise, TAC | Percent | 0 |
APP Sensor 1 and 2 | TAC | Agree/Disagree | Agree |
APP Sensor 1 and 3 | TAC | Agree/Disagree | Agree |
APP Sensor 2 and 3 | TAC | Agree/Disagree | Agree |
APP Sensor 1 | TAC | Percent/Volts | 0/0.82-1.0 |
APP Sensor 2 | TAC | Percent/Volts | 0/0.82-1.0 |
APP Sensor 3 | TAC | Percent/Volts | 0/0.82-1.0 |
BARO | Eng 1, EGR, Fuel Trim, EVAP | kPa | 65-110 kPa |
Clutch Pedal Switch | EGR, Cruise | Applied/Released | Released |
CMP Sensor Signal Present | Eng 2 | Yes/No | Yes |
Cruise Control Active | Eng 1, Cruise, TAC | Yes/No | No |
Cruise Disengage 1-6 History | Cruise | Varies | None |
Cruise On/Off Switch | Cruise, TAC | On/Off | Off |
Cruise Release Brake Pedal Switch | Cruise, TAC | Applied/Released | Released |
Cruise Resume/Accel. Switch | Cruise, TAC | On/Off | Off |
Cruise Set/Coast Switch | Cruise, TAC | On/Off | Off |
Current Gear | Eng 1, 2, EGR, Fuel Trim1 | Transmission Gear Position | 3 |
Cycles Of Misfire Data | Misfire | Counts | 0-99 |
Cyl. 1-6 Injector Circuit History | ODD | OK/Stuck Low/Open/Stuck High/Fault | OK |
Cyl. 1-6 Injector Circuit Status | ODD | OK/Fault | OK |
Decel Fuel Cutoff | EGR, Fuel Trim | Active/Inactive | Inactive |
Desired EGR Position | Eng 1, Misfire | Percent | 0 |
Desired EGR Position | EGR | Percent/Volts | 0/0.00 |
Desired Idle Speed | Eng 1, 2, EVAP, TAC | RPM | PCM Controlled (varies) |
Driver Module 1 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled |
Driver Module 2 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled |
Driver Module 3 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled |
Driver Module 4 Status | ODD | Enabled/Off-High Volts/Off High Temp/Invalid State | Enabled |
ECT Sensor | Eng 1, 2, EGR, EVAP, Fuel Trim, Misfire | °C/°F | Varies |
EGR Flow Test Count | EGR | Counts | 0-12 |
EGR Learned Minimum Position | EGR | Volts | 0.16-1.0 |
EGR Position Sensor | Eng 1, Misfire | Percent | -- |
EGR Position Sensor | EGR | Percent/Volts | 0/0.58-0.85 |
EGR Position Variance | EGR | Percent | 0 |
EGR Solenoid Circuit History | ODD | OK/Fault | OK |
EGR Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
EGR Solenoid Command | EGR | Percent | 0 |
Engine Load | Eng 1, 2, Fuel Trim, Misfire, Cruise Control, TAC, EGR, EVAP | Percent | 12-22 (varies) |
Engine Oil Level Switch | Eng 2 | OK/Low | OK |
Engine Run Time | Engine 1, 2, EVAP, Misfire, Cruise Control, EGR, Fuel Trim, TAC | Hr:Min:Sec | Varies |
Engine Speed | Engine 1, 2, EVAP, Misfire, Cruise Control, EGR, Fuel Trim, TAC | RPM | Varies |
EVAP Fault History | EVAP | No Fault/Excess Vacuum/Purge Valve Leak/Small Leak/Weak Vacuum | No Fault |
EVAP Purge Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
EVAP Purge Solenoid Command | Eng 1, Fuel Trim, EVAP | Percent | Low and Varying |
EVAP Test Abort Reason | EVAP | Not Aborted/Lost Enable/Small Leak/Veh. Not At Rest | Not Aborted |
EVAP Test Result | EVAP | No Result/Passed/Aborted/Fail-DTC P0440/Fail-DTC P0442/Fail-DTC P0446/Fail-DTC P1441 | Passed |
EVAP Test State | EVAP | Wait For Purge/Test Running/Test Completed | Test Completed |
EVAP Vent Solenoid Command | Eng 1, Fuel Trim, EVAP | Not Venting/Venting | Varies |
EVAP Vent Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
FC Relay 1 Circuit Status | ODD | OK/Fault/Invalid State | OK |
FC Relay 1 Command | Eng 2 | ON/OFF | OFF |
FC Relay 2 and 3 Circuit Status | ODD | OK/Fault/Invalid State | OK |
FC Relay 2 and 3 Command | Eng 2 | ON/OFF | OFF |
Fuel Pump Relay Circuit History Status | ODD | OK/Fault | OK |
Fuel Pump Relay Circuit Status | ODD | OK/Fault/Invalid State | OK |
Fuel Pump Relay Command | Eng 1 | On/Off | On |
Fuel Tank Level Remaining | EVAP | Percent | 0-100 |
Fuel Tank Pressure Sensor | Eng 1 | mm Hg/in H2O | Varies |
Fuel Tank Pressure Sensor | EVAP | mm Hg/in H2O/volts | Varies |
Fuel Trim Cell | Eng 1, Evap, Fuel Trim | 0-4 | 0 |
Fuel Trim Learn | Eng 1, Evap, Fuel Trim | Enabled/Disabled | Varies |
Generator L-Terminal Signal Command | Eng 2 | ON/OFF | ON |
HO2S Bank 1 Sensor 1 | Eng 1, Evap, Fuel Trim | millivolts | 0-1000 and Varying |
HO2S Bank 1 Sensor 2 | Eng 1, Fuel Trim | millivolts | 0-1000 and Varying |
HO2S Bank 2 Sensor 1 | Eng 1, EVAP, Fuel Trim | millivolts | 0-1000 and Varying |
IAT Sensor | Eng 1, 2, EVAP, EGR, Fuel Trim | °C/°F | Varies |
Ignition 1 Signal | Cruise, Eng 1, 2, EGR, TAC, EVAP, Fuel Trim | Volts | Varies |
Ignition Mode | Eng 2 | IC/Bypass | IC |
Injector PWM | Eng 2, Fuel Trim, Misfire | milliseconds | Varies (1.5-3.5) |
Knock Retard | Eng 1, EGR | Degrees | 0 |
Long Term FT Bank 1 | Eng 1, 2, EVAP, Fuel Trim | Percent | -10 to +10 |
Long Term FT Bank 2 | Eng 1, Eng 2, EVAP, Fuel Trim | Percent | -10 to +10 |
Loop Status | Eng 1, 2, EVAP, EGR, Fuel Trim | Open/Closed | Closed |
MAF Sensor | Misfire, Eng 1, 2, EGR, EVAP, Fuel Trim, TAC | Grams per Second | 3-6 (depends on altitude) |
MAF Sensor | Eng 2 | Hz | Varies |
MAP Sensor | Eng 1, 2 | kPa/Volts | 20-48 kPa/0.75-2 Volts (depends on altitude) |
MAP Sensor | EGR, EVAP, Fuel Trim, Misfire, TAC | kPa | 20-48 kPa |
MIL Circuit Status | ODD | OK/Fault/Invalid State | OK |
MIL Command | Eng 2 | On/Off | Off |
Misfire Current Cyl. 1-6 | Misfire | Counts | 0-4 |
Misfire History Cyl. 1-6 | Misfire | Counts | 0 |
Number Of DTC(s) | Eng 1, EVAP, Fuel Trim, TAC | Numerical Value | 0 |
Power Enrichment | Eng 2, Misfire, | Active/Inactive | Inactive |
Reduced Engine Power | Eng 1, EGR, Cruise, TAC | Active/Inactive | Inactive |
Short Term FT Bank 1 | Eng 1, 2, EVAP, Fuel Trim | Percent | -10 to +10 |
Short Term FT Bank 2 | Eng 1, Eng 2, EVAP, Fuel Trim | Percent | -10 to +10 |
Spark | Eng 1, 2, Fuel Trim, Misfire | Degrees | -20 (varies) |
Starter Enable Relay Circuit Status | ODD | OK/Fault/Invalid State | OK |
Starter Relay Command | Eng 2 | ON/OFF | ON |
Start Up ECT | EVAP, Fuel Trim | °C/°F | Varies |
Start Up IAT | EVAP, Fuel Trim | °C/°F | Varies |
Stop Lamp Pedal Switch | Eng 2, Cruise, TAC | Applied/Released | Released |
TAC/PCM Communication Signal | Eng 1, Cruise, TAC | OK/Fault | OK |
TCC/Cruise Brake Pedal Switch | Eng 1, 2, Cruise, TAC | Applied/Released | Released |
TCC Enable Solenoid Circuit Status | ODD | OK/Fault/Invalid State | OK |
TCC Enable Solenoid Command | Eng 2, Misfire, Cruise | ON/OFF | OFF |
TCS Circuit History | ODD | OK/Fault | OK |
TCS Circuit Status | ODD | OK/Fault | OK |
TP Desired Angle | Eng 1, 2, EGR, TAC, Cruise, EVAP | Percent | 2-6 |
TP Indicated Angle | Eng 1, Eng 2, EGR, EVAP, Fuel Trim, Misfire, Cruise, TAC | Percent | 2-6 (Near Desired Angle |
TP Sensors 1 and 2 | TAC | Agree/Disagree | Agree |
TP Sensor 1 | TAC | Percent/Volts | 0-6/0.68-0.82 |
TP Sensor 2 | TAC | Percent/Volts | 0-6/0.68-0.82 |
Traction Control Status (If Equipped) | Eng 2, Cruise, TAC | Active/Inactive | Inactive |
TR Sw. | Eng 2, EGR, Fuel Trim, Cruise | Park/Reverse/Neutral | Park |
Torque Delivered Signal (If Equipped) | Eng 2, TAC | Percent | 70 % |
Torque Request Signal (If Equipped) | Eng 2, TAC | Percent | 100 % |
Vehicle Speed Sensor | Eng 1, 2, Cruise, EGR, EVAP, TAC, Misfire, Fuel Trim | Km/h mph | 0 |
VTD Fuel Enable | Eng 1 | Active/Inactive | Inactive |
