Service Manual2007 Captiva ENGINE CONTROLS

SECTION 1F3

ENGINE CONTROLS - HFV6 3.2L

Caution : Disconnect the negative battery cable before removing or installing any electrical unit o r w hen a tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.

SPECIFICATIONS

Scan Tool Data List

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 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.

Eng : Engine Data

Ign : Ignition Data

EVAP : EVAP Data

FT : Fuel Trim Data

HO2S : HO2S Data

MF : Misfire Data

TAC : TAC Data

CMP : CMP Actuator Data

ODM : ODM Data

CH : Cooling/HVAC Data

CT : Cruise/Traction Data

ET : Electrical/Theft Data

IPC : IPC Data

IM : I/M Data

Trans : Transmission Data

FF : Freeze Frame Data

FR : Failure Records 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
A/C Disengage 1-8 History	CH	Reason for A/C Disengagement	Varies
A/C High Side Pressure Sensor	CH	0–5 Volts	Varies
A/C High Side Pressure Sensor	CH	kPa/psi	Varies
A/C OFF for WOT	CH	Yes/No	No
A/C Pressure Disable	CH	Yes/No	No
A/C Relay Circuit Status	CH, ODM	OK/Fault/Indeterminate	OK
A/C Relay Command	Eng, MF, CH	On/Off	Off
A/C Request Signal	CH	Yes/No	No
APP Indicated Angle	Eng, Ign, CMP, CT, EVAP, HO2S, FT, TAC, Trans	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	Eng, Ign, CMP, EVAP, HO2S, IM, FT, MF, TAC	65–104 kPa (8–16 psi)	Varies with altitude
BARO	Eng, TAC, Trans	Volts	Varies
Brake Pedal Signal Status	CT, TAC, Trans	Valid/Invalid	Valid
Calculated ECT - Closed Loop Fuel Control	CH	-39°C to +40°C (-38°F to +104°F)	40°C (104°F)
Calculated ECT - Thermostat Diagnosis	CH	-39°C to +40°C (-38°F to +284°F)	89°C (192°F)
Calc. TWC Temp. Bank 1 and 2	FT, MF	Temperature	Varies
Catalytic Converter Protection Active	FT, MF	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, MF	Counts	0 Counts
Component Monitor Complete This Ignition	IM	Yes/No	Varies
Component Monitor Enable This Ignition	IM	Yes/No	Varies
Crank Request Signal	ET	Yes/No	No
Cruise Control Active	CT, IPC	Yes/No	No
Cruise Disengage 1–8 History	CT	Reason	Varies
Cruise Inhibit Reason	CT	Reason	Varies
Cruise On/Off Switch	CT	On/Off	Off
Cruise Resume/Accel. Switch	CT	On/Off	Off
Cruise Set/Coast Switch	CT	On/Off	Off
Current Gear	Eng, CT, ET, IPC, FT, MF	P/N/Reverse/1st –5th	P/N
Current Gear Signal	ET, Trans	Valid/Invalid	Valid
Cycles of Misfire Data	MF	0–200 counts	Varies
Cylinder 1–6 Injector Circuit Status	ODM	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 HO2S Bank 1 or 2 Sensor 1	HO2S	Lambda	Varies
Desired Idle Speed	Eng, EVAP, CMP, TAC	0–7,000 RPM	650 RPM
Desired Int. CMP Bank 1 or 2	CMP	Degrees	Varies
DTC Set This Ignition	Eng, Ign, CMP, EVAP, FT, HO2S, TAC	Yes/No	No
EC Ignition Relay Command	Eng, TAC, ET	On/Off	On
EC Ignition Relay Feedback Signal	Eng, TAC, ET	0–25.5 Volts	12.0–14.5 Volts
ECM Reset	Eng, Ign, EVAP, FT	Yes/No	No
ECT Sensor	Eng, Ign, CMP, EVAP, HO2S, FF, FR, FT, MF, TAC, CH, IM, IPC, Trans	-39°C to +140°C (-38°F to +284°F)	Varies
Engine Load	Eng, Ign, CMP, EVAP, HO2S, FF, FR, FT, MF, TAC, CH, Trans	0-99%	0-5% - Idle 3-7% - 2500 RPM
Engine OFF EVAP Test Conditions Met	EVAP	Yes/No	Varies
Engine Off Time	EVAP, IM	0:00:00 Seconds	Varies
Engine Oil Level Switch	Eng, CMP, IPC	OK/Low	OK
Engine Oil Life Remaining	CMP, IPC	%	Varies
Engine Oil Pressure Sensor	IPC	OK, Low	OK
Engine Oil Pressure Sensor	Eng, MF, CMP, IPC	kPa/psi	Varies
Engine Oil Pressure Sensor	IPC,MF	1–5 Volts	Varies
Engine Run Time	Eng, Ign, ET, EVAP, FT, HO2S, MF, TAC, CMP, ODM, CH, CT, IM	0:00:00	Varies
Engine Speed	ALL	RPM	575-700 RPM
EVAP Monitor Complete This Ignition	IM	Yes/No	Varies
EVAP Monitor Enabled This Ignition	IM	Yes/No	Varies
EVAP Purge Solenoid Circuit Status	ODM	OK/Fault/Indeterminate	OK
EVAP Purge Solenoid Command	Eng, EVAP, FT	0-100%	Varies
EVAP Vent Solenoid Circuit Status	ODM	OK/Fault/Indeterminate	OK
EVAP Vent Solenoid Command	Eng, EVAP, FT	Venting/Not Venting	Venting
Exh. CMP Angle Bank 1 or 2	Eng, CMP	Degrees	Varies
Exh. CMP Angle Bank 1 or 2 Variance	CMP	Degrees	Varies
Exh. CMP Bank 1 or 2 Command	CMP	0-99%	Varies
Exh. CMP Solenoid Bn. 1 or 2 Circuit Status	ODM	OK/Fault/Indeterminate	OK
Extended Travel Brake Pedal Switch	Eng, TAC, CT	Applied/Released	Released
FC Relay 1 Circuit Status	CH, ODM	OK/Fault/Indeterminate	OK
FC Relay 1 Command	CH	ON/OFF	Varies
FC Relay 2 and 3 Command	CH	ON/OFF	Varies
FC Relay 2 and 3 Circuit Status	CH, ODM	OK/Fault/Indeterminate	OK
Fuel Level	EVAP	0–100%	Varies
Fuel Level Sensor	EVAP, IPC	0–5 Volts	Varies
Fuel Pump Relay Circuit Status	ODM	OK/Fault/Indeterminate	OK
Fuel Pump Relay Command	Eng	On/Off	On
Fuel Tank Level Remaining	Eng, EVAP, IPC, MF, IM	Liter/Gallon	Varies
Fuel Tank Pressure Sensor	EVAP	in H2O/mm Hg	Varies
Fuel Tank Pressure Sensor	Eng, EVAP	0-5 Volts	Varies
Fuel Tank Rated Capacity	EVAP	Liter/Gallon	17.8 Gallons (67.3 Liters)
Fuel Trim Learn	Eng, EVAP, FT, HO2S	Enabled/Disabled	Enabled
GEN L-Terminal Signal Command	ET	0-100%	Varies
Generator F-Terminal Signal	ET	0-100%	Varies
HO2S Bank 1 or 2 Sensor 1	Eng, EVAP, FT, HO2S	0-1,006 mV	Varies 400-700 mV
HO2S Bank 1 or 2 Sensor 1	Eng, FT, HO2S	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	ODM	OK/Fault/Indeterminate	OK
HO2S Htr. Bn. 1 or 2 Sensor 1 Command	HO2S	0-99%	Varies
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	20–300 Ohms Depends on Temperature
HO2S Sensing Element Bn. 1 or 2 Sensor 2	HO2S	Ohms	20–300 Ohms Depends on Temperature
IAT Sensor	Eng, Ign, EVAP, FT, FF, FR, HO2S, IM, TAC, CMP, CH, Trans	Trans -39° to +140°C (-38° to +284°F)	Varies
Ignition 0 Signal	Eng, Ign, EVAP, TAC, ET, IM, IPC, Trans	On/Off	On
Ignition 1 Signal	Eng, Ign, EVAP, FT, MF, TAC, CMP, ET, IM, IPC, Trans	On/Off	On
IMRC Solenoid Circuit Status	ODM	OK/Fault/Indeterminate	OK
IMRC Solenoid Command	Eng	On/Off	Off
Initial Brake Apply Signal	TAC, CT	Applied/Released	Released
Injector 1–6 Command	FT, MF	ms	Varies
Injector PWM Bank 1 or 2 Average	FT, MF	0–9 ms	4.6–5.4 ms
Int. CMP Angle Bank 1 or 2	Eng, CMP	Degrees	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	ODM	OK/Fault/Indeterminate	OK
Knock Retard	Eng, Ign, CH	Degrees	Variess
KS 1 or 2 Signal	Ign	Volts	Varies
Loop Status Bn 1 or 2 Sen. 1	Eng, EVAP, FT, HO2S, FF, FR	Open Loop/Closed Loop	Closed Loop
Loop Status Bn 1 or 2 Sen. 2	Eng, EVAP, FT, HO2S, FF, FR	Open Loop/Closed Loop	Closed Loop
LT FT Bn. 1 or Bn. 2 Cruise/Accel.	Eng, EVAP, FT, HO2S	-100% to +100%	0%
LT FT Bn. 1 or Bn. 2 Idle/Decel.	Eng, EVAP, FT, HO2S	-100% to +100%	0%
MAF Sensor	Eng, Ign, FT, HO2S, MF, TAC, CMP, FF, FR, Trans	0–655 g/s	3.4–6.3 g/s
MAF Sensor	Eng, Ign, EVAP, FT, HO2S, MF, TAC, CMP, Trans	0–5 Volts	0.9–1.7 Volts
MIL Circuit Status	IPC, ODM	OK/Fault/Indeterminate	OK
MIL Command	Eng, EVAP, IM, IPC, Trans	On/Off	Off
Mileage Since DTC Cleared	FF, FR	km - miles	Varies
Mileage Since First Failure	FF, FR	km - miles	Varies
Mileage Since 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
Misfire Monitor Complete This Ignition	IM	Yes/No	Varies
Misfire Monitor Enabled This Ignition	IM	Yes/No	Varies
Moderate Brake Apply Signal	TAC, CT	Applied/Released	Released
PNP Switch	Eng, ET, Trans	Park/Neutral/In Gear	P/N
Power Enrichment	Eng, FT, HO2S, MF	Active/Inactive	Inactive
PRNDL	Trans	D1, D2, D3, D4, D5, Neutral, Park, Reverse	Park/Neutral
Reduced Engine Power	Eng, TAC, IP	Active/Inactive	Inactive
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, FF, FR	-20 to +40 Degrees	2–10 Degrees
Starter Relay Circuit Status	ET, ODM	OK/Fault/Indeterminate	OK
Starter Relay Command	ET	On/Off	Off
Start Up ECT	EVAP, FT, HO2S, CH, IM	-39° to +140°C (-38° to +284°F)	Varies
Start Up IAT	EVAP, FT, HO2S, CH, IM	-39° to +140°C (-38° to +284°F)	Varies
Stoplamp Pedal Switch	Eng, CT, TAC	Applied/Released	Released
System Power Mode	EVAP, TAC, ET	Off, Accessory, RAP, Run, or Crank Request	Run
TAC System Learned Counts	TAC	0–11 Counts	0
TCC Brake Pedal Switch	CT, IM, Trans	Applied/Released	Released
TCC Status	Eng, MF, Trans	Locked/Unlocked	Unlocked
TCM Requested Torque	CT, TAC, Trans	N•m/lb ft	Varies
TCM Torque Increase	CT, TAC, Trans	Yes/No	No
TCS Torque Increase	CT, TAC	Yes/No	No
TCM Torque Reduction Active	CT, TAC, Trans	Yes/No	No
TCS Torque Reduction Active	CT, TAC	Yes/No	No
Torque Delivered Signal	FT, TAC, CT	0-100%	Varies
Torque Request Signal	FT, TAC, CT	0-100%	90-98%
Total Fuel Trim Avg. Bank 1 or Bank 2	EVAP, FT, HO2S	-100 to +100%	Varies
Total Misfire Count	MF	Counts	0
TP Desired Angle	Eng, EVAP, TAC, CT	0-100%	Varies
TP Indicated Angle	Eng, Ign, EVAP, FT, HO2S, MF, TAC, CMP, CT, FF, FR, Trans	0-100%	Varies
TP Sensor 1	TAC	0–5 Volts	0.5–0.8 Volts
TP Sensor 1 Learned Minimum	TAC	0–5 Volts	0–0.6 Volts
TP Sensor 2	TAC	0–5 Volts	4.7-4.1 Volts
TP Sensor 2 Learned Minimum	TAC	0–5 Volts	5-3.7 Volts
TP Sensors 1 and 2	TAC	Agree/Disagree	Agree
Traction Control Status	TAC, CT	Active/Inactive	Inactive
Transmission Gear Selector Signal	Trans	Valid/Invalid	Valid
Vehicle Security Status	ET, IPC	Password Learning, VTD Fail-Enable, Auto Learn Timer, Fuel Disable Until Ign Off, Fuel Disable Timeout, and Fuel Continue	Fuel Continued
Vehicle Speed Sensor	Eng, Ign, EVAP, FT, HO2S, MF, TAC, CMP, CH, CT, IM,IPC, FF, FR, Trans	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

Scan Tool Data Definitions

The Scan Tool Data Definitions list contains a brief description of all of the 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. In some cases the parameter may appear more than once, or in more than one data list in order to group certain related parameters together.

A/C Disengage 1-8 History : The parameter displays the last 8 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 Sensor : 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 : This parameter displays the pressure from the A/C high side pressure sensor signal circuit to the control module.

A/C OFF for WOT : This parameter displays whether the control module is commanding the air conditioning (A/C) compressor clutch relay off for wide open throttle (WOT).

A/C Pressure Disable : This parameter displays whether the air conditioning (A/C) pressure is out of range for normal operation as determined by the control module.

A/C Relay Circuit Status : 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. 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 A/C relay ON.

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

A/C Request Signa l: This parameter displays the state of the air conditioning (A/C) request input to the control module from the heating, ventilation, and air conditioning (HVAC) controls.

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

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

APP Sensor 1 and 2 : 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.

BARO : This parameter displays the barometric pressure. The control module uses the barometric pressure for fuel control to compensate for altitude differences.

Brake Pedal Signal Status : This parameter displays the serial data message of the brake signal from the EBTCM.

Calculated ECT - Closed Loop Fuel Control : 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 : 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 or Bank 2 : This parameter displays the catalytic converter temperature as calculated by the control module.

Catalytic Converter Protection Active : This parameter displays if the control module is commanding catalytic converter protection.

Catalyst Monitor Complete This Ignition : This parameter displays the monitor completion status during the current driving/monitoring cycle.

Catalyst Monitor Enabled This Ignition : This parameter displays the monitor enable status during the current driving/monitoring cycle.

CKP Resync Counter : This parameter displays the number of times the control module re-syncs with the CKP sensor.

Component Monitor Complete This Ignition : This parameter displays the diagnostic monitor completion status during the current driving/monitoring cycle.

Component Monitor Enabled This Ignition : This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.

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

Cruise Control Active : This parameter displays the status of the cruise control system as determined by the control module.

Cruise Disengage 1–8 History : 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 Inhibit Reason : This parameter displays the reason that cruise is inhibited.

Cruise On/Off Switch : This parameter displays the state of the cruise control on/off switch input to the control module.

Cruise Resume/Accel. Switch :This parameter displays the state of the cruise controls resume/accel switch position input to the control module.

Cruise Set/Coast Switch : This parameter displays the state of the cruise controls set/coast switch position input to the control module.

Current Gear : This parameter displays the transmission gear commanded by the transmission control module.

Current Gear Signal : This parameter displays Invalid if the serial data message from the transmission control module (TCM) is invalid.

Cycles of Misfire Data : This parameter displays the number of misfire tests during 200 engine revolutions.

Cylinder 1-6 Injector Circuit Status : 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 1–6 Knock Retard : 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 : 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 : This parameter displays the desired exhaust camshaft angle as commanded by the control module.

Desired HO2S Bank 1 or 2 Sensor 1 : This parameter displays the desired HO2S lambda value as commanded by the control module.

Desired Idle Speed : This parameter displays the desired engine idle speed as commanded by the control module.

Desired Int. CMP Bank 1 or 2 : This parameter displays the desired intake camshaft angle ascommanded by the control module.

DTC Set This Ignition : This parameter displays Yes if a DTC set on the current ignition cycle.

EC Ignition Relay Command : This parameter displays the state of the control circuit for control module power relay as commanded by the control module.

EC Ignition Relay Feedback Signal : This parameter displays the voltage available at the EC ignition relay pin of the control module.

ECM Reset : This parameter displays Yes when an internal control module reset occurs. The scan tool displays NO under normal operating conditions.

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

Engine Off EVAP Test Conditions Met : This parameter displays Yes if the conditions for running the Engine Off EVAP diagnostic are met.

Engine Off Time : This parameter displays the amount of time that has elapsed since the engine was last cycled OFF.

Engine Oil Level Switch : 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 : 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 : This parameter displays OK if the engine oil pressure is within the correct range. If the control module detects that the engine oil pressure is not within the correct range, the scan tool displays Low.

Engine Oil Pressure Sensor : This parameter displays the engine oil pressure.

Engine Oil Pressure Sensor : This parameter displays the voltage signal received by the control module from the engine oil pressure (EOP) sensor.

Engine Run Time : This parameter displays the time elapsed since the engine was started.

Engine Speed : 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.

EVAP Monitor Complete This Ignition : This parameter displays the diagnostic monitor completion status during the current driving/monitoring cycle.

EVAP Monitor Enabled This Ignition : This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.

EVAP Purge Solenoid Circuit Status : 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. The parameter displays Indeterminate until the circuit has been commanded ON.

EVAP Vent Solenoid Circuit Status : 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. 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 EVAP vent solenoid ON.

EVAP Vent Solenoid Command : 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 : This parameter displays the state of the control circuit for control module power relay as commanded by the control module.

Exh. CMP Angle Bank 1 or 2 Variance : This parameter displays in degrees, the difference between the desired exhaust camshaft position and the actual exhaust camshaft position.

Exh. CMP Bank 1 or 2 Command : This parameter displays the exhaust camshaft position in percent of range as commanded by the control module.

Exh. CMP Solenoid Bn. 1 or 2 Circuit Status : 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. The parameter displays Indeterminate until the circuit has been commanded ON.

Extended Travel Brake Pedal Switch : This parameter displays the state of the brake pedal as determined by the control module from the extended travel brake pedal switch position.

FC Relay 1 Circuit Status : 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.

FC Relay 1 Command : This parameter displays the control module commanded state of the fan relay control circuit.

FC Relay 2 and 3 Command : This parameter displays the control module commanded state of the fan relay control circuit.

FC Relay 2 and 3 Circuit Status : 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 relay control circuit has been commanded ON.

Fuel Level : 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) : This parameter displays the voltage signal received by the control module from the left or secondary fuel level sensor.

Fuel Level Sensor Right Tank (Primary) : This parameter displays the voltage signal received by the control module from the right or primary fuel level sensor.

Fuel Pump Relay Circuit Status : 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. The parameter displays Indeterminate until the circuit has been commanded ON.

Fuel Pump Relay Command : This parameter displays the control modules commanded state of the fuel pump relay control circuit.

Fuel Tank Level Remaining : 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 : 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 : This parameter displays the voltage signal received by the control module from the fuel tank pressure (FTP) sensor.

Fuel Tank Rated Capacity : This parameter displays the capacity of the fuel tank in liters or gallons.

Fuel Trim Learn : 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 Command : This parameter displays the control modules commanded state of the voltage regulator on the generator.

Generator F-Terminal Signal : 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 Bank 1 or 2 Sensor 1 : 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 2 : 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 : This parameter displays the diagnostic monitor completion status during the current driving/monitoring cycle.

HO2S Heater Monitor Enabled This Ignition : This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.

HO2S Htr. Bn. 1 or 2 Sensor 1 or 2 CircuitStatus : 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. The parameter displays Indeterminate until the circuit has been commanded ON.

HO2S Htr. Bn. 1 or 2 Sensor 1 Command : This parameter displays the commanded state of the heater control circuit as commanded by the control module.

HO2S/O2S Monitor Complete This Ignition : This parameter displays the diagnostic monitor completion status during the current driving/monitoring cycle.

HO2S/O2S Heater Monitor Enabled This Ignition : This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.

HO2S Sensing Element Bn. 1 or 2 Sensor 1 or 2 : The sensors are normally regulated between 20-300 ohms which depends on temperature.

IAT Sensor : 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 : This parameter displays On when the control module detects a voltage at the ignition 0 input terminal.

Ignition 1 Signal : This parameter displays On when the control module detects a voltage at the ignition 1 input terminal.

IMRC Solenoid Circuit Status : This parameter displays the state of the IMRC control circuit. The parameter displays Fault if the IMRC control 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 Command : This parameter displays the control modules commanded state of the IMRC solenoid.

Initial Brake Apply Signal : This parameter displays the state of the brake pedal that is transmitted over the serial data circuit from the electronic brake control module (EBCM).

Injector 1-6 Command : This parameter displays the amount of fuel injector ON time or pulse width as commanded by the control module.

Injector PWM Bank 1 or 2 Average : This parameter displays the average pulse width of the fuel injectors for each bank of the engine as determined by the control module.

Int. CMP Angle Bank 1 or 2 : This parameter displays the actual intake camshaft position in degrees.

Int. CMP Angle Bank 1 or 2 Variance : This parameter displays in degrees, the difference between the desired intake camshaft position and the actual intake camshaft position.

Int. CMP Bank 1 or 2 Command : This parameter displays the intake camshaft position in percent of range as commanded by the control module.

Int. CMP Solenoid Bn. 1 or 2 Circuit Status : 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. 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 CMP solenoid ON.

Knock Retard : 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 : This parameters displays the voltage input to the control module from the knock sensor (KS).

Loop Status Bn. 1 or 2 Sen. 1 : 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 : 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.

LT FT Bn. 1 or Bn. 2 Cruise/Accel. : 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. : 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 : This parameter displays the measured quantity of air flowing into the engine during all operating conditions.

MAF Sensor : This parameter displays the signal voltage from the mass air flow (MAF) sensor to the control module.

MIL Circuit Status : 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. This parameter displays indeterminate until the circuit is commanded ON.

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

Mileage Since DTC Cleared : This parameter displays the mileage that has elapsed since any diagnostic trouble code (DTC) has been cleared from the control modules memory.

Mileage Since First Failure : This parameter displays the mileage that has elapsed since the first emission failure.

Mileage Since Last Failure : This parameter displays the mileage that has elapsed since the last emission failure.

Mileage Since MIL Requested : 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 : 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 : 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.

Misfire Monitor Complete This Ignition : This parameter displays the diagnostic monitor completion status during the current driving/monitoring cycle.

Misfire Heater Monitor Enabled This Ignition : This parameter displays the diagnostic monitor enable status during the current driving/monitoring cycle.

Moderate Brake Apply Signal : This parameter displays the state of the brake pedal that is transmitted over the serial data circuit from the electronic brake control module (EBCM).

PNP Switch : This parameter displays whether the transmission range selector is in park or neutral.

Power Enrichment : This parameter displays the status of the operating mode of the control module used to increase fuel delivery during certain acceleration conditions.

PRNDL Range : This parameter displays the transmission range input to the control module, determined directly from the decoding of the PRNDL A, B, C, and P inputs from the transmission internalmode switch (IMS).

Reduced Engine Power : This parameter displays whether the control module is commanding reduced engine power due to a throttle actuator control (TAC) system condition.

Short Term FT Bank 1 or Bank 2 : 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 : 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 Status : 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 : This parameter displays the control modules commanded state of the starter motor relay control circuit.

Start Up ECT : 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 : 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.

Stop Lamp Pedal Switch : This parameter displays the position of the stop lamp pedal switch input to the control module.

System Power Mode : This parameter displays the position of the ignition switch.

TAC System Learned Counts : This parameter displays the steps counted in learning the throttle actuator control parameters. The last step learned is 11.

TCC Brake Pedal Switch : This parameter displays the position of the TCC brake pedal switch input to the control module.

TCC Status : This parameter displays the commanded status of the torque convertor clutch.

TCM Requested Torque : This parameter displays the calculated amount torque requested of the controller.

TCM Torque Increase : This parameter displays whether or not the controller has responded to a request for a torque increase.

TCS Torque Increase : This parameter displays whether or not the controller has responded to a request for a torque increase.

TCM Torque Reduction Active : This parameter displays whether the transmission control module (TCM) is reducing torque.

TCS Torque Reduction Active : This parameter displays whether EBTCM has determined a reduction in torque took place.

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

Total Misfire Count : 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 : This parameter displays the desired TP angle commanded by the control module.

TP Indicated Angle : This parameter displays the percent of throttle opening as calculated by the control module using information from the two TP sensors.

TP Sensor 1 : This parameter displays the actual voltage on the TP sensor 1 signal circuit as measured by the control module.

TP Sensor 1 Learned Minimum : 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 : This parameter displays the actual voltage on the TP sensor 2 signal circuit as measured by the control module.

TP Sensor 2 Learned Minimum : This parameter displays the learned minimum value of TP sensor 2 as recorded by the control module during the last learn procedure.

TP Sensor 1 and 2 : 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 : This parameter displays Active if the electronic brake and traction control module (EBTCM) is commanding traction control.

Transmission Gear Selector Signal : This parameter displays the position of the transmission gear selector that is transmitted over the serial data circuit from the transmission control module (TCM).

Vehicle Security Status : This parameter displays the status of the vehicle theft deterrent system.

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

Scan Tool Output Controls

Scan Tool Output Control	Additional Menu Selection(s)	Description
Camshaft Actuator	Special Functions/Engine Output Controls/CMP Actuator System	This function controls the selected camshaft actuator. 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.
Camshaft Actuator Solenoid	Special Functions/Engine Output Controls/CMP Actuator System	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.
Cylinder Power Balance	Special Functions/Fuel System	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	Special Functions/TAC System	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	Special Functions/Engine Output Controls/EVAP System	Important : The EVAP Purge Solenoid Command parameter may not 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 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 H20).
EVAP Purge/Seal	Special Functions/Engine Output Controls/EVAP System	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 H20).
EVAP Test	Service Bay Test	This function activates the Service Bay Test to verify the integrity of the EVAP system. The scan tool initiates the test when the following conditions are met : All instructions on the scan tool have been completed. ECT is less than a specified value. No EVAP DTCs are set.
EVAP Vent Solenoid	Special Functions/Engine Output Controls/EVAP System	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 H20).
Fuel Injector Balance	Special Functions/Fuel System	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	Special Functions/Engine Output Controls	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	Special Functions/Fuel System	This function resets the fuel trim data and the learned values for the rear heated oxygen sensors.
Idle Learn Reset	Special Functions/TAC System	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 engine coolant temperature (ECT) is between 5–85°C (41–185°F). No TAC system DTCs are set.
IMRC Solenoid	Special Functions/Engine Output Controls	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	Special Functions/Engine Output Controls	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	Special Functions/Engine Output Controls	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.
Throttle Position	Special Functions/TAC System	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.

Fastener Tightening Specifications

Application	N•m	Lb-Ft	Lb-In
Accelerator Pedal Module Retaining Bolts	9	-	80
Accessory Mounting Bracket Bolts	37	27	-
Camshaft Position Actuator Solenoid Attaching Bolt	10	-	89
Camshaft Position Sensor Retaining Bolt	10	-	89
Crankshaft Position Sensor Retaining Bolt	10	-	89
Direct Ignition System Ignition Coil Retaining Bolts	10	-	89
EGR Valve Adapter Retaining Bolt (Left)	20	15	-
EGR Valve Adapter Retaining Bolts (Upper & Right)	30	22	-
Engine Control Module Bracket Retaining Nuts	15	11	-
Engine Coolant Temperature Sensor	22	16	-
Engine Oil Pressure Sensor Attaching Bolt	13	-	115
Evaporative Emission Canister Bracket Retaining Nuts	10	-	89
Evaporative Emission Canister Purge Solenoid Valve Bracket Retaining Bolt	5	-	44
Exhaust Gas Recirculation Valve Retaining Bolts	30	22	-
Fuel Rail Retaining Bolts	25	18	-
Fuel Tank Strap Retaining Nuts	20	15	-
Ignition Coil Attaching Bolt	9	-	80
Intake Manifold Tuning Control Solenoid Valve Attaching Bolt	10	-	89
Knock Sensor Retaining Bolt	23	17	-
Mass Air Flow Sensor Retaining Nut	2	-	18
Oxygen Sensor	50	37	-
Spark Plug	18	13	-
Throttle Body Retaining Bolts	10	-	89