GM Service Manual Online
For 1990-2009 cars only

Scan Tool Data List Except Holden

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 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 conditions are determined:

    •  The Diagnostic System Check - Vehicle is completed.
    •  There are no diagnostic trouble codes (DTCs).
    • The on-board diagnostics are functioning correctly.

Scan tool values from an engine that is operating correctly may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents the values that would be seen on a normal operating engine.

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

Only the parameters listed below are referenced in this service information 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 is located on the scan tool. Review the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:

All: The Parameter is in all data lists indicated below.

CH: Cooling/HVAC Data

CMP: CMP Actuator Data

CT: Cruise/Traction Data

Eng: Engine Data

ET: Electrical/Theft Data

EVAP: EVAP Data

FF: Freeze Frame Data

FR: Failure Records

FT: Fuel Trim Data

HO2S: HO2S Data

Ign: Ignition Data

IM: I/M Data

IND: Induction Data

IPC: Instrument Panel Cluster Data

MF: Misfire Data

TAC: TAC Data

Trans: Auto Trans Data

Scan Tool Data List

Scan Tool Parameter

Data List

Parameter Range/Units

Typical Data Values

Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop/Accessories Off

5-Volt Reference 1, 2, or 3 Circuit Status

EVAP, IGN, IND, TAC, CH

OK/Fault

OK

A/C Disengage 1-8 History

Cooling/HVAC

Reason for A/C Disengagement

Varies

A/C High Side Pressure

Cooling/HVAC

0-5 Volts

Varies

A/C High Side Pressure

Cooling/HVAC

kPa/psi

Varies

A/C Off for WOT

Cooling/HVAC

Yes/No

No

A/C Pressure Disable

Cooling/HVAC

Yes/No

No

A/C Relay Circuit Status

Cooling/HVAC

OK/Fault/Indeterminate

OK

A/C Relay Command

Eng, TAC, CH, IND, MF

On/Off

Off

A/C Request Signal

Cooling/HVAC

Yes/No

No

Air Flow Calculated

ENG, EVAP, FT, HO2S, IND, MF, TAC

g/s

--

Air Fuel Ratio

ENG, FT, HO2S, IND

14.7:1

Varies

Ambient Air Temperature

ENG, EVAP

°C/°F

Varies

APP Indicated Angle

CMP,CT, Eng, ET, EVAP, FT, HO2S, Ign, IND, MF, TAC, Trans

0-100%

0%

APP Sensors

TAC

0-100%

0%

APP Sensor 1

TAC

0.9-4.5 Volts

1 Volt

APP Sensor 2

TAC

0.40-2.25 Volts

0.4 Volt

APP Sensor 1 and 2

TAC

Agree/Disagree

Agree

BARO

CMP , Eng, EVAP, FT, HO2S, Ign,IM, IND, Trans

65-104 kPa (8-16 psi)

Varies with altitude

BARO

IND

Volts

Varies

Brake Pedal Signal Status

CT, Eng, ET, TAC, Trans

Valid/Invalid

Valid

Calculated ECT - Closed Loop Fuel Control

CH

-39 to +40°C (-38 to +104°F)

40°C (104°F)

Calculated ECT - Thermostat Diagnosis

CH

-39 to +140°C (-38 to +284°F)

89°C (192°F)

Calc. TWC Temp. Bank 1 and 2 Sensor 1 and 2

FT, MF

Temperature

Varies

Catalytic Converter Protection Active

FT, HO2S

Yes/No

No

Catalyst Monitor Complete This Ignition

IM

Yes/No

Varies

Catalyst Monitor Enabled this Ignition

IM

Yes/No

Varies

CKP Resync Counter

Ign

Counts

0 Counts

CKP Active Counter

Ign

Counts

0 Counts

CMP Sensor

CMP, IGN, MF

RPM

Engine idle speed

Cold Startup

ENG, EVAP, IM

YES/NO

Varies

Crank Request Signal

ET

Yes/No

No

Cruise Control Active

ENG, TAC

Active/Inactive

Inactive

Cruise Control Active

CT, Eng, IPC, TAC,

Yes/No

No

Cruise Disengage 1-8 History

CT

Reason

Varies

Cruise Inhibited

CT

Yes/No

No

Cruise On/Off Switch

CT

On/Off

Off

Cruise Resume/Accel. Switch

CT

ON/OFF

OFF

Cruise Set/Coast Switch

CT

ON/OFF

OFF

Cylinder 1-6 IC Circuit Status

MF

OK/Fault/Indeterminate

OK

Cylinder 1-6 Injector Circuit Status

MF

OK/Fault/Indeterminate

OK

Cylinder 1-6 Knock Retard

Ign

Degree

0 Degrees

Decel. Fuel Cutoff

Eng, FT, HO2S

Active/Inactive

Inactive

Desired Exh. CMP Bank 1 or 2

CMP

Degree

Varies

Desired Idle Speed

Eng, EVAP, CMP, CT, IND

0-7,000 RPM

650 RPM

Desired Int. CMP Bank 1 or 2

CMP

Degrees

Varies

Distance Since DTC Cleared

ENG

Miles/Kilometers

Varies

DTC Set This Ignition

Eng

Yes/No

No

EC Ignition Relay Command

Eng, ET,TAC

On/Off

On

EC Ignition Relay Circuit Status

ET

OK/Fault/Indeterminate

OK

EC Ignition Relay Feedback Signal

Eng, TAC, ET

0-25.5 Volts

12.0-14.5 Volts

ECM in VTD Fail Enable

ET

Yes/No

No

ECT Sensor

ALL

-39°C to +140°C (-38°F to +284°F)

Varies

Engine Load

CH, CMP, Eng, EVAP, FF, FR, FT, ,HO2S, Ign, IND, MF, TAC, Trans

0-99%

25-45% - Idle

40-60% - 2500 RPM

Engine OFF EVAP Test Conditions Met

EVAP

Yes/No

Varies

Engine Off Time

EVAP, IM

0:00:00 Seconds

Varies

Engine Oil Life Remaining

CMP, IPC

%

Varies

Engine Oil Pressure Sensor

IPC

1-5 Volts

Varies

Engine Oil Pressure Sensor

CMP, Eng, ET, IPC, MF,

kPa/psi

Varies

Engine Oil Temperature Calculated

CH, CMP, IPC

°C (°F)

Varies

Engine Run Time

Eng, Ign, EVAP, FT, HO2S, IM, MF, TAC, CMP, CH, CT, IND, Trans

0:00:00

Varies

Engine Speed

CH, CMP, CT, Eng, ET, EVAP, FF, FR, FT, ,HO2S, Ign, IND, IPC, MF, TAC, Trans

RPM

575-700 RPM

EVAP Fault History

EVAP

Vacuum/Purge Valve Leak/Small Leak/Weak Vacuum/No Test Result

No Test Result

EVAP Monitor Complete This Ignition

IM

Yes/No

Varies

EVAP Monitor Enabled This Ignition

IM

Yes/No

Varies

EVAP Purge Solenoid Circuit Status

EVAP

OK/Fault/Indeterminate

OK

EVAP Purge Solenoid Command

Eng, EVAP, FT, H02S

0-100%

Varies

Exh. CMP Angle Bank 1 or 2

CMP

Degrees

Varies

Exh. CMP Bank 1 or Bank 2 Active Counter

CMP, IGN

Counts

Varies

Exh. CMP Bank 1 or 2 Command

CMP

0-99%

Varies

Exh. CMP Angle Bank 1 or 2 Variance

CMP

Degrees

Varies

Exh. CMP Solenoid Bn. 1 or 2 Circuit Status

CMP

OK/Fault/Indeterminate

OK

FC Relay 1 Circuit Status

CH

OK/Fault/Indeterminate

OK

FC Relay 2 and 3 Circuit Status

CH

OK/Fault/Indeterminate

OK

FC Relay 1 Command

CH

On/Off

Varies

FC Relay 2 and 3 Command

CH

On/Off

Varies

Fuel Level Sensor Left Tank (Secondary) Fuel Level Sensor Right Tank (Primary)

EVAP

0-5 Volts

Varies

Fuel Pump Relay Circuit Status

Eng

OK/Fault/Indeterminate

OK

Fuel Pump Relay Command

Eng

On/Off

On

Fuel Tank Level Remaining

Eng, EVAP, FT, IM, IPC MF,

Liter/Gallon/Percent

Varies

Fuel Tank Rated Capacity

EVAP

Liter/Gallon

19.9 Gallons (75.3 Liters)

Fuel Trim Learn

FT

Enabled/Disabled

Enabled

GEN L-Terminal Signal Command

ET

ON/OFF

ON

Generator F-Terminal Signal

ET

0-100%

Varies

HO2S Bank 1 or 2 Sensor 1

Eng, EVAP, FT, HO2S, IND

Lambda

1.0 Lambda

HO2S Bank 1 or 2 Sensor 2

Eng, EVAP, FT, HO2S, IND

0-1,006 mV

Varies 400-700 mV

HO2S Heater Monitor Complete This Ignition

IM

Yes/No

Varies

HO2S Heater Monitor Enabled This Ignition

IM

Yes/No

Varies

HO2S Htr. Bn. 1 or 2 Sensor 1 or 2 Circuit Status

H02S

OK/Fault/Indeterminate

OK

HO2S Bank 1 or 2 Sensor 1 or 2 Heater Command

HO2S

0-99%

Varies

HO2S Bank 1 or 2 Sensor 1 or 2 Heater Command

HO2S

ON/OFF

ON

HO2S/O2S Monitor Complete This Ignition

IM

Yes/No

Varies

HO2S/O2S Monitor Enabled This Ignition

IM

Yes/No

Varies

HO2S Sensing Element Bn. 1 or 2 Sensor 1

HO2S

Ohms

70-90 Ohms

Depends on Temperature

HO2S Sensing Element Bn. 1 or 2 Sensor 2

HO2S

Ohms

20-300 Ohms

Depends on Temperature

IAT Sensor

CH, CMP, Eng, EVAP, FF, FR, FT, HO2S, Ign, IM, IND, MF, TAC,Trans

-39° to +140°C (-38° to +284°F)

Varies

Ignition Off Time

ENG, EVAP, IM

0:00:00

Varies

Ignition 0 Signal

Eng, ET, Ign, IM, IPC, TAC

On/Off

On

Ignition 1 Signal

ALL

Volts

B+

Ignition 1 Signal

Eng, ET, EVAP

On/Off

On

IMRC Solenoid Circuit Status

IND

OK/Fault/Indeterminate

OK

IMRC Solenoid Command

IND

On/Off

Off

Initial Brake Apply Signal

CT, Eng, ET, IM, TAC, Trans

Applied/Released

Released

Injector 1-6 Command

FT, MF

ms

Varies

Injector 1-6 Disabled Due to Misfire

FT, MF

YES/NO

NO

Int. CMP Angle Bank 1 or 2

CMP

Degrees

Varies

Int. CMP Bank 1 or Bank 2 Active Counter

CMP, IGN

Counts

Varies

Int. CMP Angle Bank 1 or 2 Variance

CMP

Degrees

Varies

Int. CMP Bank 1 or 2 Command

CMP

0-99%

Varies

Int. CMP Solenoid Bn. 1 or 2 Circuit Status

CMP

OK/Fault/Indeterminate

OK

Knock Detected Cyl.1-6

IGN

YES/NO

NO

Knock Retard

Ign

Degrees

Varies

KS 1 or 2 Signal

Ign

Volts

Varies

Long Term FT Bank 1 or Bank 2

CMP, ENG, EVAP, FT, HO2S

-100 to +100%

7-9%

Loop Status Bn 1 or 2 Sen. 1

Eng, EVAP, FF, FR, FT, HO2S,

Open Loop/Closed Loop

Closed Loop

Loop Status Bn 1 or 2 Sen. 2

Eng, EVAP, FF, FR, FT, HO2S,

Open Loop/Closed Loop

Open Loop

LT FT Bn. 1 or Bn. 2 Idle/Decel.

Eng, EVAP, FT, HO2S

-100% to +100%

0%

MAF Performance Test

IND, TAC

OK/Fault

OK

MAF Sensor

CMP, Eng, EVAP, FF, FR, FT, HO2S, Ign, IND, MF, TAC, Trans

0-655 g/s

3.4-6.3 g/s

MAF Sensor

IND

0-9999 Hz

2000-2300 Hz

MIL Circuit Status

Eng, IPC

OK/Fault/Indeterminate

OK

MIL Command

Eng, IPC, IM

On/Off

Off

Mil Requested by DTC

CMP, Eng, EVAP, FF, FR, FT, IM, HO2S, Ign, IND, MF, TAC, Trans

Yes/No

No

Mileage Since DTC First Failure

FF, FR

km - miles

Varies

Mileage Since DTC Last Failure

FF, FR

km - miles

Varies

Mileage Since MIL Requested

FF, FR

km - miles

Varies

Misfire Current Cyl. 1-6

MF

0-255 Counts

0

Misfire History Cyl. 1-6

MF

0-65,535 Counts

0

Moderate Brake Apply Signal

CT, TAC

Applied/Released

Released

PNP Switch

Eng

Park/Neutral/In Gear

P/N

Power Enrichment

Eng, FT, HO2S, MF

Active/Inactive

Inactive

Reduced Engine Power

TAC

Active/Inactive

Inactive

RVS Disable 1-8 History

ET

None

Varies

Short Term FT Bank 1 or Bank 2

Eng, EVAP, FT, HO2S, FF, FR

-25% to +25%

-3% to +3%

Spark

Eng, Ign, FT, HO2S, MF, CH, CT, IND, FF, FR

-20 to +40 Degrees

2-10 Degrees

Starter Relay Circuit Status

ET

OK/Fault/Indeterminate

OK

Starter Relay Command

CT, ET

On/Off

Off

Start Up ECT

CH, EVAP, HO2S, IM

-39° to +140°C (-38° to +284°F)

Varies

Start Up IAT

CH, EVAP, HO2S, IM

-39° to +140°C (-38° to +284°F)

Varies

Stoplamp Pedal Switch

CT, ET, IM, TAC

Applied/Released

Released

System Power Mode

Eng, ET, EVAP, TAC

Off, Accessory, RAP, Run, or Crank Request

Run

TAC Forced Engine Shutdown

TAC

YES/NO

NO

TAC Motor

TAC

Enabled/Disabled

Enabled

TAC System Learned Counts

TAC

0-11 Counts

11

TCC Status

MF

Locked/Unlocked

Unlocked

TCM Requested Torque

Trans

N·m/lb ft

Varies

TCM Torque Increase

CT, TAC, Trans

Yes/No

NO

TCS Torque Increase

CT, TAC

Yes/No

NO

TCS Torque Reduction Active

CT, TAC, Trans

Yes/No

NO

TCM Torque Reduction Active

CT, TAC, Trans

Yes/No

NO

TCS Torque Delivered Signal

CT, TAC

0-100%

O%

TCS Torque Request Signal

CT, TAC, Trans

0-100%

90-98%

Total Fuel Trim Avg. Bank 1 or Bank 2

EVAP, FT, HO2S

-100 to +100%

Varies

Total Knock Retard

IGN, CH

Degrees

0

Total Misfire Count

MF

Counts

0

TP Desired Angle

Eng, EVAP, TAC

0-100%

Varies

TP Indicated Angle

CMP, CT, Eng, EVAP, FT, ,FF, FR, HO2S, Ign, IND MF, TAC, Trans

0-100%

Varies

TP Performance Test

IND, TAC, FT

Active/Inactive

Inactive

TP Sensor 1

TAC

4.5-5.0Volts

4.0

0.5-4.50 Volts

TP Sensor 1 Learned Minimum

TAC

0-5 Volts

0.5-4.50 Volts

TP Sensor 2

TAC

0-5 Volts

5.0-1.0 Volts

TP Sensor 2 Learned Minimum

TAC

0-5 Volts

5.0-1.0 Volts

TP Sensors 1 and 2

TAC

Agree/Disagree

Agree

Traction Control Status

TAC, CT

Active/Inactive

Inactive

Vehicle Speed Sensor

All

Km/h

mph

Varies

Volumetric Efficiency

Eng, Ign, EVAP, FT, HO2S, MF, TAC, CMP, CH, Trans

0-100%

5-25% - Idle and at 2,500 RPM

VTD Auto. Learn Timer

ET

Active/Inactive

Inactive

VTD Fuel Disable

ET

Active/Inactive

Inactive

VTD Fuel Enabled

ET

Yes/No

Yes

VTD Fuel Disable Untill Ign. Off

ET

Yes/No

No

VTD Password learned

ET

Yes/No

Yes

Warm Ups Since DTC Cleared

Eng

Counts

Varies

Wide Open Throttle

TAC

Yes/No

NO

Scan Tool Data List Holden

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 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 conditions are determined:

    • The Diagnostic System Check - Vehicle is completed.
    • There are no diagnostic trouble codes (DTCs).
    • The on-board diagnostics are functioning correctly.

Scan tool values from an engine that is operating correctly may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents the values that would be seen on a normal operating engine under the conditions specified in the first row of the Scan Tool Data List table.

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

Only the parameters listed below are referenced in this service information for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Engine Controls for diagnosis.

Scan Tool Data List

Scan Tool Parameter

System State

Expected Value

Description

Engine Idling / Operating Temperature / Closed Throttle / Park or Neutral / Closed Loop / Accessories Off

5V Reference Voltage Circuit 1 Status

Valid

Invalid

-

This parameter displays the diagnostic state of the output driver for the 5-volt reference circuit.

5V Reference Voltage Circuit 2 Status

Valid

Invalid

-

This parameter displays the diagnostic state of the output driver for the 5-volt reference circuit.

5V Reference Voltage Circuit 3 Status

Valid

Invalid

-

This parameter displays the diagnostic state of the output driver for the 5-volt reference circuit.

A/C Cutoff Mode (Air Conditioning)

 

-

This parameter displays the A/C cutoff mode status.

A/C Disengagement 1st History

Eng Speed

-

This parameter displays the Disengagement History status.

A/C Disengagement 2nd History

Full Load

A/C Disengagement 3rd History

Performance

A/C Disengagement 4th History

Eng Temp

A/C Disengagement 5th History

Not Present

A/C Disengagement 6th History

High Pressure

A/C Disengagement 7th History

Low Battery

A/C Disengagement 8th History

Stall Prevention

A/C Pressure Sensor (Air Conditioning)

-

V

This parameter displays the voltage from the A/C high side pressure sensor signal circuit to the control module.

A/C Pressure Sensor (Air Conditioning)

-

kPa

This parameter displays the pressure in KPA from the A/C high side pressure sensor signal circuit to the control module.

A/C Relay (Air Conditioning)

On

Off

-

This parameter displays the state of the air conditioning (A/C) clutch relay control circuit as commanded by the control module.

A/C Request

No

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.

A/C Request (Air Conditioning)

On

Off

-

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 Air/Fuel Ratio

-

1

This parameter displays the ratio of air to fuel as calculated by the control module based on various sensor inputs.

Actual Gear

1, 2, 3, 4, 5

P/N

R

Invalid

-

This parameter displays the actual gear selected.

Alternator F Terminal

-

%

This parameter displays the amount of generator on-time as commanded by the control module. The higher the percentage the greater the generator output.

Alternator L Terminal Circuit Status

 

-

This parameter displays if the engine control module is allowing the generator to operate.

Alternator L Terminal Duty Cycle

-

%

 

Ambient Temperature

-

°C

This parameter displays the temperature of the ambient air as calculated by the control module based on the input from the ambient air temperature sensor.

APP Sensor 1 (Accelerator Pedal Position)

-

V

This parameter displays the actual voltage of the accelerator pedal position (APP) sensor 1 signal circuit as measured by the control module.

APP Sensor 1-2 Correlation (Accelerator Pedal Position)

Okay

Fault

-

This parameter displays Fault 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 Okay under the normal operating conditions.

APP Sensor 2 (Accelerator Pedal Position)

-

V

This parameter displays the actual voltage of the accelerator pedal position (APP) sensor 2 signal circuit as measured by the control module.

APP Sensors (Accelerator Pedal Position)

-

%

This parameter displays the angle of the accelerator pedal position (APP) as calculated by the control module using the signals from the APP sensors.

B1 and B2 Actual Exhaust Camshaft Position

-

°CA

This parameter displays the actual exhaust camshaft position in degrees.

B1 and B2 Actual Intake Camshaft Position

-

°CA

This parameter displays the actual Intake camshaft position in degrees.

B1 and B2 Catalyst Temperature

-

°C

This parameter displays the catalytic converter temperature as calculated by the engine control module.

B1 and B2 Commanded Exhaust Camshaft Position (Bank 1)

-

%

This parameter displays the exhaust camshaft position in percent of range as commanded by the control module.

B1 and B2 Commanded Exhaust Camshaft Position (Bank 1)

-

°CA

This parameter displays the actual exhaust camshaft position in degrees.

B1 and B2 Commanded Intake Camshaft Position (Bank 1)

-

%

This parameter displays the intake camshaft position in percent of range as commanded by the control module.

B1 and B2 Commanded Intake Camshaft Position (Bank 1)

-

°CA

This parameter displays the actual intake camshaft position in degrees.

B1 and B2 Exhaust Camshaft Position Sensor Active Counter

-

Counts

This parameter displays an incrementing counter when the control module receives a signal from the exhaust camshaft position (CMP) sensor.

B1 and B2 Exhaust Camshaft Position Solenoid Valve Circuit Status

Ok

Undefined Status

Fault

-

This parameter displays the state of the exhaust camshaft actuator solenoid control circuit.

B1 and B2 Intake Camshaft Position Sensor Active Counter

-

Counts

This parameter displays an incrementing counter when the control module receives a signal from the intake camshaft position (CMP) sensor.

B1 and B2 Intake Camshaft Position Solenoid Valve Circuit Status

Ok

Undefined Status

Fault

-

This parameter displays the state of the intake camshaft actuator solenoid control circuit.

B1 and B2 LTFT Cruise/Acceleration (Long Term Fuel Trim)

-

%

This parameter is calculated by the control module based on the Short Term FT value. The Long Term FT is used for the long term correction of the fuel delivery.

The scan tool will display a high value for a large amount of long term fuel correction, and 0 percent for no long term fuel trim correction.

The scan tool will display a negative value when fuel system is running too rich and fuel is being removed from the combustion event.

The scan tool will display a positive value if the fuel system is running lean and fuel is being added to the combustion event.

B1 and B2 LTFT Idle/Deceleration (Long Term Fuel Trim)

-

B1 and B2 Short Term Fuel Trim

-

%

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.

B1 and B2 Total Fuel Trim

-

%

This parameter displays the overall fuel trim from the idle/decel cell and the cruise/accel cell.

B1S1 O2 Sensor (Bank 1 Sensor 1)

-

0.99

 

B1S1 O2 Sensor Heater (Bank 1 Sensor 1)

-

Ohm

 

B1S1 O2 Sensor Heater (Bank 1 Sensor 1)

Active

Inactive

-

This parameter displays the status of the O2 Sensor Heater.

B1S1 O2 Sensor Heater Circuit Status (Bank 1 Sensor 1)

Ok

Undefined Status

Fault

-

This parameter displays the status of the O2 Sensor Heater Circuit.

B1S2 O2 Sensor (Bank 1 Sensor 2)

-

mV

 

B1S2 O2 Sensor Heater (Bank 1 Sensor 2)

Active

Inactive

-

This parameter displays the status of the O2 Sensor Heater.

B1S2 O2 Sensor Heater Circuit Status (Bank 1 Sensor 2)

Ok

Undefined Status

Fault

-

This parameter displays the status of the O2 Sensor Heater Circuit.

B2S1 O2 Sensor (Bank 2 Sensor 1)

-

0.99

 

B2S1 O2 Sensor Heater (Bank 2 Sensor 1)

-

Ohm

 

B2S1 O2 Sensor Heater (Bank 2 Sensor 1)

Active

Inactive

-

This parameter displays the status of the O2 Sensor Heater.

B2S1 O2 Sensor Heater Circuit Status (Bank 2 Sensor 1)

Ok

Undefined Status

Fault

-

This parameter displays the status of the O2 Sensor Heater Circuit.

B2S2 O2 Sensor (Bank 2 Sensor 2)

-

mV

 

B2S2 O2 Sensor Heater (Bank 2 Sensor 2)

Active

Inactive

-

This parameter displays the status of the O2 Sensor Heater.

B2S2 O2 Sensor Heater Circuit Status (Bank 2 Sensor 2)

Ok

Undefined Status

Fault

-

This parameter displays the status of the O2 Sensor Heater Circuit.

Barometric Pressure

-

kPa

This parameter displays the barometric pressure in KPA.

Barometric Pressure

-

V

This parameter displays the barometric pressure in Voltage.

Brake Lamp Switch

Active

Inactive

-

The scan tool displays Active / Inactive. The scan tool displays Inactive when the ignition is ON and the brake pedal is not applied.

Calculated Air Flow

-

g/s

 

Calculated ECT - Closed Loop Fuel Control (Engine Coolant Temperature)

-

°C

This parameter displays the calculated air flow into the engine that is based on manifold absolute pressure. The calculation is used in several diagnostics to determine when to run the diagnostics.

Calculated ECT - Thermostat Diagnosis (Engine Coolant Temperature)

-

°C

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 Pedal Position

-

%

This parameter displays the angle of the accelerator pedal as calculated by the engine control module using the signals from the accelerator pedal position sensors. The APP indicated angle is a range of values indicating a low percentage when the accelerator pedal is not pressed to a high percentage when the accelerator pedal is fully pressed.

Calculated Throttle Position

-

%

This parameter displays the percent of throttle opening as calculated by the control module using information from the TP sensor.

Camshaft Active Counter

-

Counts

This parameter displays the CMP active counts.

CC Disengagement 1st History (Cruise Control)

Brake

Brake Cruise

Cancel Switch

-

The parameter displays the last 8 cruise control disengages in order from 1 to 8, with 8 being the most recent. There are about 20 possible causes for the cruise control to disengage.

CC Disengagement 2nd History (Cruise Control)

Clutch Disengage

Coast Disengage

Coast Speed Low

CC Disengagement 3rd History (Cruise Control)

ETC Inhibit

High Accel

High Decel

CC Disengagement 4th History (Cruise Control)

High Speed

Illegal Mode

Low Speed

CC Disengagement 5th History (Cruise Control)

Not Present

Off Switch

Overspeed

CC Disengagement 6th History (Cruise Control)

PCM Inhibit

Command Error

TCS Active

CC Disengagement 7th History (Cruise Control)

Device Control

Memory Error

Engine R

CC Disengagement 8th History (Cruise Control)

-

Cold Startup

No

Yes

-

This parameter indicates whether the engine meets the conditions for a cold start-up during the present ignition cycle. The scan tool displays Yes when the conditions for a cold start-up are met during this ignition cycle. The scan tool displays No when the conditions for a cold start-up are not met during the present ignition cycle. Conditions for a cold start-up 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 B1S1 O2 Sensor Heater (Bank 1 Sensor 1)

-

%

 

Commanded B1S1 O2 Sensor Value (Bank 1 Sensor 1)

-

0.99

 

Commanded B1S2 O2 Sensor Heater (Bank 1 Sensor 2)

-

%

 

Commanded B2S1 O2 Sensor Heater (Bank 2 Sensor 1)

-

%

 

Commanded B2S1 O2 Sensor Value (Bank 2 Sensor 1)

-

0.99

 

Commanded B2S2 O2 Sensor Heater (Bank 2 Sensor 2)

-

%

 

Coolant Temperature

-

°C

This parameter displays the temperature of the engine coolant based on input to the control module from the engine coolant temperature (ECT) sensor.

Crank Request

Active

Inactive

-

This parameter displays whether the ignition switch has been cycled to the crank position requesting the engine control module to activate the starter relay.

Crankshaft Active Counter

-

Counts

This parameter displays an incrementing counter when the engine control module receives a signal from the crankshaft position (CKP) sensor.

Crankshaft Resynchronise Counter

-

Counts

This parameter displays the number of times the engine control module re-syncs with the crankshaft position (CKP) sensor.

Cruise Control Active

No

Yes

-

This parameter displays the status of the cruise control system as determined by the engine control module. The scan tool will display Yes when the cruise control system is in control of vehicle speed. The scan tool will display No when the cruise control system is not operating.

Cruise Control Disengagement Reason

None

Brake

Brake Cruise

Clutch Disengage

Coasting

Throttle Control

Max Acceleration

High Decel

High Speed

Illegal Mode

Low Speed

Not Present

Off

Over speed

PCM

Command Error

Error

Traction

Ignition Off

Data Error

System Error

Engine Runtime

Engine Speed

-

This parameter displays the status of the Cruise Control Disengagement.

Cruise Control Switch

Inactive

Active

-

This parameter displays the status of the Cruise Control Switch.

Cruise Resume / Acceleration Switch

Inactive

Active

-

This parameter displays the status of the Cruise Resume/Acceleration switch.

Cruise Set / Decel Switch

Inactive

Active

-

This parameter displays the status of the Cruise Set/Deceleration switch.

Cycles Of Misfire

-

Counts

This parameter displays the Cycles of Misfire.

Cylinder 1 Ignition Circuit Status

Passed

Failed

Incomplete

-

This parameter displays the status of the Cylinder ignition circuits.

Cylinder 2 Ignition Circuit Status

Cylinder 3 Ignition Circuit Status

Cylinder 4 Ignition Circuit Status

Cylinder 5 Ignition Circuit Status

Cylinder 6 Ignition Circuit Status

Cylinder 1 Injector Circuit Status

OK

Undefined Status

Fault

-

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. This parameter displays indeterminate until the control circuit has been commanded ON.

Cylinder 2 Injector Circuit Status

Cylinder 3 Injector Circuit Status

Cylinder 4 Injector Circuit Status

Cylinder 5 Injector Circuit Status

Cylinder 6 Injector Circuit Status

Cylinder 1 Knock Detected

No

Yes

-

This parameter displays the knock retard as commanded by the engine control module for cylinders 1-6. Each cylinder is controlled individually based on both knock sensor signal inputs.

Cylinder 2 Knock Detected

Cylinder 3 Knock Detected

Cylinder 4 Knock Detected

Cylinder 5 Knock Detected

Cylinder 6 Knock Detected

Dec. Fuel Cutoff (Deceleration)

Inactive

Active

-

This parameter displays the status of the operating mode of the engine control module used to turn off the fuel injectors and the evaporative emission (EVAP) canister purge valve during certain deceleration conditions.

Desired Engine Idle Speed

-

RPM

This parameter displays the desired engine idle speed as commanded by the engine control module.

Desired Throttle Position

-

0 - 100 %

This parameter displays the angle of the throttle position (TP) in percent. This information is calculated by the engine control module using the signals from the throttle position sensors. The scan tool will display a low percentage when the throttle plates are closed. The scan tool will display a high percentage when the throttle plates are fully open.

Distance Since DTC Cleared

-

km

This parameter displays the distance accumulated since an emission diagnostic trouble code was cleared. The scan tool will display increasing distance as the vehicle is driven.

Electronic Throttle Control Learn Counter

-

Counts

This parameter displays the Electronic Throttle Control Learn.

Engine Control Ignition Relay

On

Off

-

This parameter displays the state of the control circuit engine control module power relay as commanded by the engine control module. The scan tool displays ON with the engine running.

Engine Control Ignition Relay Circuit Status

Passed

Failed

Incomplete

-

This parameter displays the status of the output driver for the EC Ignition Relay control circuit. The scan tool will display Passed/Failed or Incomplete. The scan tool will display Passed if the circuit is operating correctly. The scan tool will display Failed if there is an open, short to ground, or a short to voltage on the circuit.

Engine Control Ignition Relay Feedback

-

V

This parameter displays the voltage of the control circuit engine control module power relay as commanded by the engine control module.

Engine Load

-

%

This parameter displays the calculated engine load in percent based on inputs to the control module from various engine sensors.

Engine Oil Level Switch

Ok

Low

-

This parameter displays if the level of the engine oil is within range as determined by the engine control module from information received from the engine oil level switch.

Engine Oil Life Remaining

-

%

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

-

kPa

This parameter displays the engine oil pressure.

Engine Oil Pressure

Ok

Low

-

This parameter displays Okay if the engine oil pressure is within the correct range. If the engine control module detects that the engine oil pressure is not within the correct range, the scan tool displays Low.

Engine Oil Pressure Sensor

-

V

The scan tool displays Volts. The scan tool displays the Volts coming back from the sensor when the ignition is ON.

Engine Oil Temperature Calculated

-

°C

This parameter displays the temperature of the engine oil.

Engine Oil Temperature Sensor

-

°C

This parameter displays the temperature of the engine oil.

Engine Runtime

-

h:m:s

This parameter displays the time elapsed since the engine was started.

Engine Speed

-

RPM

This parameter displays the speed of the engine crankshaft rotation from information received from the crankshaft position (CKP) sensor.

EVAP Purge Solenoid (Evaporative Emission)

-

%

This parameter displays the on-time or duty cycle of the EVAP canister purge solenoid commanded by the control module.

EVAP Purge Solenoid Valve Circuit Status (Evaporative Emission)

OK

Undefined Status

Fault

-

This parameter displays the status of the EVAP Purge Solenoid Valve Circuit.

Fan Relay 1

On

Off

-

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. The parameter displays Indeterminate until the circuit has been commanded ON.

Fan Relay 1 Circuit Status

OK

Undefined Status

Fault

-

This parameter displays the status of the Fan Relay 1 Circuit.

Fan Relay 2 and 3

On

Off

-

This parameter displays the engine control module commanded state of the fan relay control circuit.

Fan Relay 2 and 3 Circuit Status

OK

Undefined Status

Fault

-

This parameter displays the status of the Fan Relay 2 and 3 Circuits.

Fuel Level

-

Liters

This parameter displays the amount of fuel remaining in all fuel tanks of the vehicle as measured in liters or gallons. The engine control module calculates the amount of fuel remaining in the tank by using information from the fuel level sensors.

Fuel Level Sensor Primary

-

V

This parameter displays the voltage signal received by the control module from the fuel level sensor Primary.

Fuel Level Sensor Secondary

-

V

This parameter displays the voltage signal received by the control module from the fuel level sensor Secondary.

Fuel Pump Relay

On

Off

-

This parameter displays the control modules commanded state of the fuel pump relay control circuit.

Fuel Pump Relay Circuit Status

OK

Undefined Status

Fault

-

This parameter displays the status of the Fuel Pump Relay Circuit.

Fuel System Status

Open Loop

Closed Loop

-

The scan tool displays Open Loop or Closed Loop. The scan tool displays Closed Loop if the engine control module is controlling the fuel delivery according to the heated oxygen sensor (HO2S) voltages. The scan tool displays open loop if the engine control module is not adjusting for HO2S inputs. In open loop the engine control module bases fuel deliver on throttle position, engine coolant temperature, and mass airflow sensor inputs.

Fuel Trim Learn

Disabled

Enabled

-

The scan tool displays Enabled or Disabled. When conditions are appropriate for enabling long term fuel trim corrections, the scan tool displays Enabled. If the scan tool displays Disabled, then long term fuel trim will not respond to changes in short term fuel trim.

Ignition Accessory Signal

On

Off

-

This parameter displays the state of the ignition input to the engine control module from the ignition switch. The scan tool will display ON when the ignition switch is in the ignition accessory position. The scan tool will display OFF when the ignition switch is in any other position.

Ignition Off Time

-

h:m:s

This parameter displays the time elapsed since the engine was started.

Ignition Voltage

-

V

The scan tool displays Volts. The scan tool displays Volts when the ignition is ON.

IMRC Solenoid (Intake Manifold Runner Control)

On

Off

-

This parameter displays the engine control modules commanded state of the IMRC solenoid.

IMRC Solenoid Circuit Status (Intake Manifold Runner Control)

Passed

Failed

Incompleted

-

This parameter displays the state of the intake manifold runner control (IMRC) circuit. The parameter displays Fault if the IMRC circuit is open, shorted to ground, or shorted to voltage. The parameter displays Indeterminate until the circuit has been commanded ON. This parameter may not change if the scan tool is used to command the IMRC solenoid ON.

IMRC Solenoid Feedback Signal (Intake Manifold Runner Control)

-

%

 

Injection Time Cylinder 1

-

ms

This parameter displays the amount of fuel injector ON time in Millie seconds as commanded by the engine control module.

Injection Time Cylinder 2

ms

Injection Time Cylinder 3

ms

Injection Time Cylinder 4

ms

Injection Time Cylinder 5

ms

Injection Time Cylinder 6

ms

Injector 1 Disabled Due to Misfire

No

Yes

-

This parameter displays the status of each of the Injector Disabled Due to Misfire.

Injector 2 Disabled Due to Misfire

No

Yes

-

Injector 3 Disabled Due to Misfire

No

Yes

-

Injector 4 Disabled Due to Misfire

No

Yes

-

Injector 5 Disabled Due to Misfire

No

Yes

-

Injector 6 Disabled Due to Misfire

No

Yes

-

Intake Air Temperature

-

°C

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.

Knock Retard

-

°CA

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.

Knock Retard Cylinder 1

-

°CA

This parameter indicates how much ignition spark timing is being retarded due to all control systems monitored by the engine control module.

Knock Retard Cylinder 2

°CA

Knock Retard Cylinder 3

°CA

Knock Retard Cylinder 4

°CA

Knock Retard Cylinder 5

°CA

Knock Retard Cylinder 6

°CA

Knock Sensor 1 Test Status

Passed

Failed

Incomplete

-

This parameter displays the status of each of the Knock sensors and circuits.

Knock Sensor 2 Test Status

Passed

Failed

Incomplete

-

Knock Sensor Circuit Test Status

Passed

Failed

Incomplete

-

Loop Status B1S1 (Bank 1 Sensor 1)

Open

Closed

-

This parameter displays the state of the fuel control system as commanded by the engine control module. Closed Loop operation indicates that the engine control module is controlling the fuel delivery based off the oxygen sensors input signal. In Open Loop operation the engine control module ignores the oxygen sensor input signal and bases the amount of fuel to be delivered on other sensor inputs.

Loop Status B2S1 (Bank 2 Sensor 1)

Open

Closed

Malfunction Indicator (MI)

On

Off

-

This parameter displays the commanded state of the malfunction indicator lamp (MIL) control circuit by the control module.

Malfunction Indicator (MI) Circuit Status

OK

Undefined

Fault

-

This parameter displays the status of the Malfunction Indicator Circuit.

Mass Air Flow

-

g/s

This parameter displays the measured quantity of air flowing into the engine during all operating conditions.

Mass Air Flow Sensor

-

Hz

The scan tool displays in Hz. This parameter indicates the frequency signal sent from the MAF sensor to the engine control module. the scan tool will display a high value indicates a higher engine speed. The scan tool will display a low value at idle.

Misfire Current Cyl. #1

-

Counts

The scan tool will display in counts. This parameter indicates the number of cylinder firing events detected as possible misfires on each cylinder during the last 200 crankshaft revolutions as calculated by the engine control module. The scan tool will display a low number for a low number of cylinder misfire events. The scan tool will display a high number for a high number of cylinder misfire events.

Misfire Current Cyl. #2

Misfire Current Cyl. #3

Misfire Current Cyl. #4

Misfire Current Cyl. #5

Misfire Current Cyl. #6

Misfire History Cyl. #1

-

Counts

The scan tool displays in counts. This parameter displays the total level of cylinder misfires that have been calculated for each cylinder by the engine control module. This parameter will not update or show activity until a misfire DTC has become active. The misfire history counters will update every 200 cylinder firing events.

Misfire History Cyl. #2

Misfire History Cyl. #3

Misfire History Cyl. #4

Misfire History Cyl. #5

Misfire History Cyl. #6

Number of Warm-Ups Since DTCs Cleared'

-

Counts

This parameter displays the Number Of Warm-ups Since DTCs Cleared.

Oil Level

Normal

Low

Not Programmes

-

This parameter displays if the level of the engine oil is within range as determined by the engine control module from information received from the engine oil level switch.

Power Enrichment

No

Yes

-

Scan tool displays Yes or No. Yes displayed indicates that the engine control module has detected conditions appropriate to operate in Power Enrichment mode. The engine control module commands Power Enrichment mode when a large increase in throttle position and load is detected. While in Power Enrichment, the engine control module will increase the amount of fuel delivered by entering Open Loop and increasing the injector pulse width.

Powertrain Immobiliser Status

Released

Standby

Immob. at Startup

Immob. No Resp

Immob. Neg Resp

Immob. Wrong Resp

Post Release

Pre Release

-

This parameter displays the status of the Powertrain Immobiliser.

Reduced Engine Power

Inactive

Active

-

The scan tool displays Active or Inactive. The scan tool displays Active when the engine control module receives a signal from the throttle actuator control (TAC) module that a TAC system fault is occurring. The scan tool displays inactive when the engine is operating normally.

Requested Torque

-

%

This parameter displays the calculated amount torque requested of the controller.

Spark Advance

-

°CA

This parameter displays the amount of spark advance the engine control module is commanding on the ignition control circuits. The engine control module determines the desired advance.

Start Up ECT (Engine Coolant Temperature)

-

°C

This parameter indicates the engine coolant temperature at start-up, as calculated by the engine control module based on the input from the engine coolant temperature sensor. The scan tool will display a higher value at higher engine start-up temperatures, and a lower value at lower start-up temperatures.

Start Up IAT (Intake Air Temperature)

-

°C

Indicates the intake air temperature (IAT) at the time that the vehicle was started. Used to determine if the last start-up was a cold start. The scan tool range is -39 to +140°C (-38 to +284°F). This parameter indicates the ambient air temperature at start-up.

Starter Relay

On

Off

-

This parameter displays the control modules commanded state of the starter motor relay control circuit.

Starter Relay Circuit Status

OK

Undefined Status

Fault

-

This parameter displays the status of the Starter Relay Circuit.

System Power Mode

-

Invalid

Off Asleep

Off Awake

Unlock

Accessory

Run

Crank

RAP

-

This parameter displays the status of the System Power Mode.

TAC Motor PWM Command (Throttle Actuator Control)

-

%

This parameter displays the percent of throttle opening as calculated by the control module using information from the TP sensor.

Total Knock Retard

-

°CA

This parameter indicates how much ignition spark timing is being retarded due to all control systems monitored by the engine control module. The scan tool will display a high value during extreme conditions such as high temperatures and antilock braking. The scan tool will display a lower value during lighter driving conditions.

Total Misfire

-

Counts

The scan tool range is 0-255 counts. This parameter indicates 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 or DTC P0300 has become active. The misfire history counter will update every 200 cylinder firing events.

TP Sensor 1 (Throttle Position)

-

%

This parameter displays the angle of the throttle position (TP) sensor 1 in percent. This information is calculated by the engine control module using the signal from the throttle position sensor 1. The scan tool will display a low percentage when the throttle plates are closed. The scan tool will display a high percentage when the throttle plates are fully open.

TP Sensor 1 (Throttle Position)

-

V

The scan tool displays Volts. The scan tool displays Volts when the ignition is ON.

TP Sensor 1 Learned Lower Position (Throttle Position)

-

V

This parameter displays the learned minimum value of TP sensor 1 as recorded by the engine control module during the last learn procedure.

TP Sensor 1-2 Correlation (Throttle Position)

OK

Fault

-

This parameter displays the results of a engine control module test that compares signals from the throttle position (TP) sensors 1 and 2 . The scan tool will display Agree when the signal from TP sensor 1 corresponds with the signal from TP sensor 2. The scan tool will display Disagree when the signal from TP sensor 1 conflicts with the signal from TP sensor 2.

TP Sensor 2 (Throttle Position)

-

%

This parameter displays the angle of the throttle position (TP) sensor 2 in percent. This information is calculated by the engine control module using the signal from the throttle position sensor 2. The scan tool will display a low percentage when the throttle plates are closed. The scan tool will display a high percentage when the throttle plates are fully open.

TP Sensor 2 (Throttle Position)

-

V

The scan tool displays Volts. The scan tool displays Volts when the ignition is ON.

TP Sensor 2 Learned Lower Position (Throttle Position)

-

V

The scan tool displays Volts. The scan tool displays Volts when the ignition is ON.

Traction Control

Inactive

Active

-

This parameter displays Active if the EBTCM is commanding traction control.

Transmission Gear

P-N

In Gear

-

This parameter indicates the current state of the gear select switch on the transmission/transaxle as calculated by the engine control module based on the TR switch. The scan tool status will switch from High to Low as different combinations are met. On the scan tool in Park, the PRNDL would read P and A will be Low, and B and C will be High.

Vehicle Speed

-

km/h

This parameter indicates the vehicle speed calculated by the engine control module based on an input from the vehicle speed sensor (VSS). the scan tool will display a high value at higher vehicle speeds, and a low value at lower vehicle speeds.

Vehicle Speed Circuit Status

Passed

Failed

Incomplete

-

This parameter displays the status of the Vehicle Speed Circuit. The scan tool will display OK, Incomplete, Short B+, Short Gnd/Open. The scan tool will display OK/Incomplete if the circuit is operating correctly.

Volumetric Efficiency

-

%

This parameter displays the calculated volumetric efficiency of the engine as calculated by the engine control module.