Diagnostic Trouble Codes - OBDII: Other Jaguar S-type I рестайлинг

2 = 2 TRIPS - indicates that the CHECK ENGINE MIL is activated by a fault occurring during TWO CONSECUTIVE "TRIPS"

Refer to OBD "TRIPS" for definition of OBD "TRIP"

CYLINDER NUMBERING

Engine cylinder numbering is as follows

Scheme 100

OBD SYSTEM READINESS - ENGINE MANAGEMENT

If DTC P1000 is flagged after DTCs have been cleared, all engine management OBD diagnostic monitor drive cycles HAVE NOT BEEN COMPLETED.

If DTC P1111 is flagged after DTCs have been cleared, all engine management OBD diagnostic monitor drive cycles HAVE BEEN COMPLETED.

OBD SYSTEM READINESS - TRANSMISSION

Use WDS Datalogger "TOTAL NUMBER OF DTC SET" to determine if transmission OBD monitoring has been completed.

OBD "TRIPS"

The OBD system defines 1 TRIP as an ignition cycle (ignition key OFF; wait 30 seconds; ignition key ON) plus a minimum engine coolant temperature increase of 22 °C (40 °F) after which, the engine coolant temperature has to reach a minimum of 71°C (160 °F).

Upstream (Universal) oxygen sensors

1. Engine OFF; cooling fans inoperative > 20 seconds.
2. Start engine and bring to normal operating temperature > 82 °C (180 °F).
3. Drive the vehicle between 3000 - 4000 rpm in 3rd gear at a steady speed. Lift foot completely off accelerator and coast to a stop within 30 seconds. Do not touch accelerator pedal for 4 seconds after coming to a stop.
4. Repeat step 3 .
5. Idle engine for 11 minutes.

Downstream oxygen sensors

1. Start engine and bring to normal operating temperature > 82 °C (180 °F).
2. Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 10 minutes.
3. Drive the vehicle above 3000 rpm in 3rd gear at a steady speed. Lift foot completely off accelerator and coast for 30 seconds.

Oxygen sensor heaters

1. Start engine and bring to normal operating temperature > 82 °C (180 °F).
2. Idle engine for 3 minutes.

ADAPTIVE FUEL MONITOR DRIVE CYCLE

1. Start engine and bring to normal operating temperature > 82 °C (180 °F).
2. Idle for a minimum of 10 minutes.

MISFIRE MONITOR DRIVE CYCLE

1. Record flagged DTC (s) and accompanying WDS DTC Monitor freeze frame(s) data.
2. Fuel level > 25%.
3. Start the engine at a coolant temperature lower than the recorded freeze frame value (from Step 1).
4. Drive the vehicle to the recorded freeze frame conditions for 4 minutes. If CHECK ENGINE MIL flashes, lower the engine speed until the flashing stops.

Note regarding misfire monitor DTCs

If, on the first trip, the misfire is severe enough to cause excess exhaust emission, the individual cylinder DTC plus DTC P1316 will be logged. The CHECK ENGINE MIL will not be activated. If the fault reoccurs on the second trip, the individual cylinder DTC plus DTC P1316 will be flagged, and the CHECK ENGINE MIL will be activated.

If, on the first trip, the misfire is severe enough to cause catalyst damage (more severe than excess exhaust emission), the CHECK ENGINE MIL will flash while the fault is present and the individual cylinder DTC plus DTC P1313 (bank 1), DTC P1314 (bank 2) will be logged. When the fault is no longer present the MIL will be deactivated. If the fault reoccurs on the second trip, the CHECK ENGINE MIL will flash while the fault is present and the individual cylinder DTC plus DTC P1313 (bank 1), DTC P1314 (bank 2) will be flagged. When the fault is no longer present the CHECK ENGINE MIL will be activated.

CATALYST EFFICIENCY MONITOR DRIVE CYCLE

1. Start engine and bring to normal operating temperature > 82 °C (180 °F).
2. Drive the vehicle in a steady state condition between 1300 - 3000 rpm without stops or starts for a minimum of 5 minutes.

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

1. Ensure that fuel filler cap is fully closed (minimum three clicks).
2. Fuel level >30% and < 85%.
3. Using WDS, perform ECM DTC Clear (even if no DTCs are flagged).
4. Drive vehicle for a minimum of 2 minutes, and until engine is at normal operating temperature.
5. Using WDS, ensure that the EVAP Canister Purge Valve is operating by observing "PURGE VAPOR MANAGEMENT VALVE - DUTY CYCLE". If the valve is not active, ECM adaptions have not been learned. Conduct a "green ECM" Drive Cycle as described in Technical Service Bulletin.
6. Drive vehicle to the road where the EVAP System Drive Cycle will be conducted. Stop vehicle and switch OFF the ignition. Leave ignition OFF for 30 seconds, then restart the engine.
7. Accelerate briskly to 80 km/h (50 mph) ensuring that the engine speed reaches a minimum of 3500 rpm for a minimum of 5 seconds.
8. (0.040 inch EVAP Test) View WDS "PURGE VAPOR MANAGEMENT VALVE - DUTY CYCLE", "CANISTER CLOSE VALVE - VAPOR RECOVERY SYSTEM", and FUEL TANK PRESSURE - VAPOR RECOVERY SYSTEM". Avoiding high engine loads, drive the vehicle steadily between 65 km/h (40 mph) and 100 km/h (60 mph). Avoid driving conditions that will produce excessive fuel movement. WDS should give an indication that the test is active (it may take up to 30 minutes before the test will initialize). When the test has initialized (EVAP Canister Close Valve CLOSED), it will take approximately 90 seconds for the test to complete.
9. (0.020 inch EVAP Test) Continue driving vehicle as explained in Step 8 for an additional 10 minutes.
10. Gently coast the vehicle to a stop. Allow the engine to idle for 2 minutes and view WDS "PURGE VAPOR MANAGEMENT VALVE - DUTY CYCLE", "CANISTER CLOSE VALVE - VAPOR RECOVERY SYSTEM", and FUEL TANK PRESSURE - VAPOR RECOVERY SYSTEM". WDS should give an indication that the test is active. When the test has initialized (EVAP Canister Close Valve CLOSED), it will take approximately 90 seconds for the test to complete.
11. If the 0.020 inch EVAP Test is not activated, the purge system vapor concentration may be too great. To reduce the vapor concentration proceed as follows
12. Drive the vehicle for an additional 30 minutes avoiding driving conditions that will produce excessive fuel movement. Repeat Step 10 . If the 0.020 inch EVAP Test is still not activated, repeat the Drive Cycle from Step 6 .
13. Using WDS, check for and clear flagged DTCs.

EXHAUST GAS RECIRCULATION MONITOR DRIVE CYCLE

1. Start engine and bring to normal operating temperature > 82 °C (180 °F).
2. Drive the vehicle in 3rd gear at 2500 rpm. Maintain a steady speed for 1 minute, then lift foot completely off accelerator and coast for a minimum of 10 seconds.

COMPREHENSIVE COMPONENT MONITOR ENGINE MANAGEMENT DRIVE CYCLE

To avoid unnecessary complexity, a single comprehensive engine management drive cycle has not been developed for S-TYPE. Refer to the individual DTC for specific drive cycle/monitoring conditions.

COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE

To avoid unnecessary complexity, a single comprehensive transmission drive cycle has not been developed for S-TYPE. Refer to the individual DTC for specific drive cycle/monitoring conditions.

POWERTRAIN CONTROL ACRONYMS

A/C: Air conditioning

APP Sensor: Accelerator Pedal Position Sensor

ASC: Adaptive Speed Control

B+: Battery Voltage

Bank 1: RH Engine cylinder bank (cylinders 1, 3, 5, 7) (A Bank)

Bank 2: LH Engine cylinder bank (cylinders 2, 4, 6, 8) (B Bank)

BARO Sensor: Barometric Pressure Sensor

CAN: Controller Area Network

CKP Sensor: Crankshaft Position Sensor

CMP Sensor 1: Camshaft Position Sensor - Bank 1

CMP Sensor 2: Camshaft Position Sensor - Bank 2

DLC: Data Link Connector

DSC: Dynamic Stability Control

ECM: Engine Control Module

ECT Sensor: Engine Coolant Temperature Sensor

EFT Sensor: Engine Fuel Temperature Sensor

EGR: Exhaust Gas Recirculation

EOT Sensor: Engine Oil Temperature Sensor

EVAP Canister Close Valve: Evaporative Emission Canister Close Valve

EVAP Canister Purge Valve: Evaporative Emission Canister Purge Valve

FTP Sensor: Fuel Tank Pressure Sensor

HO2 Sensor 1/1: Heated Oxygen Sensor - Bank 1/Upstream

HO2 Sensor 1/2: Heated Oxygen Sensor - Bank 1/Downstream

HO2 Sensor 2/1: Heated Oxygen Sensor - Bank 2/Upstream

HO2 Sensor 2/2: Heated Oxygen Sensor - Bank 2/Downstream

IAT Sensor: Intake Air Temperature Sensor

IC: Instrument Cluster

IMT Valve 1: Intake Manifold Tuning Valve: Bottom

IMT Valve 2: Intake Manifold Tuning Valve: Top

IP Sensor: Injection Pressure Sensor

KS 1: Knock Sensor - Bank 1

KS 2: Knock Sensor - Bank 2

MAF Sensor: Mass Air Flow Sensor

MAP Sensor: Manifold Absolute Pressure Sensor

N/A: Normally Aspirated

SC: Supercharged

TCC: Torque converter clutch

TCM: Transmission Control Module

TFT Sensor: Transmission Fluid Temperature Sensor

TP Sensor: Throttle Position Sensor

V6: V6 Engine

V8: V8 Engine

VVT Valve 1: Variable Valve Timing Valve - Bank 1

VVT Valve 2: Variable Valve Timing Valve - Bank 2

SYS

EMS OBD II

MONITORING CONDITIONS

Idle engine 30 seconds

Accelerate from stop through complete engine rpm range Coast to a stop

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes; coast to a stop

Accelerate smoothly through complete accelerator pedal travel; coast to a stop

Idle engine 30 seconds

CK ENG

2

OTHER

N

DEFAULT ACTION

ECM Default

1. Bank 1 VVT hold current set at a constant value of 450 mA (V6) 520 mA (V8)

CM PIN

PI1-109

POSSIBLE CAUSES

VVT solenoid valve disconnected

VVT solenoid valve to ECM PWM drive circuit: open circuit, short circuit, high resistance

VVT solenoid failure

EMS OBD II

Idle engine 30 seconds

Accelerate from stop through complete engine rpm range; coast to a stop

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes; coast to a stop

Accelerate smoothly through complete accelerator pedal travel; coast to a stop

Idle engine 30 seconds

2

N

ECM Default

1. Bank 2 VVT hold current set at a constant value of 450 mA (V6) 520 mA (V8)

PI1-110

VVT solenoid valve disconnected

VVT solenoid valve to ECM PWM drive circuit: open circuit, short circuit, high resistance

VVT solenoid failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Oxygen sensor heaters)

2

N

ECM Default

1. Bank 1 closed loop fuel metering and adaptive fuel metering inhibited
2. Canister purge inhibited
3. Bank 1 upstream HO2S heater control circuit switched off

PI1-001-002-029-030

HO2 Sensor 1/1 heater power supply circuit: open circuit

HO2 Sensor 1/1 heater control circuit: open circuit, high resistance

HO2 Sensor 1/1 heater ground circuit(s) fault (PI1-029, PI1-030)

HO2 Sensor 1/1 heater failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Oxygen sensor heaters)

2

N

ECM Default

1. Bank 1 closed loop fuel metering and adaptive fuel metering inhibited
2. Canister purge inhibited
3. Bank 1 upstream HO2S heater control circuit switched off

PI1-001-002-029-030

HO2 Sensor 1/1 heater control circuit: short circuit to ground

HO2 Sensor 1/1 heater ground circuit(s) fault (PI1-029, PI1-030)

HO2 Sensor 1/1 heater failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Oxygen sensor heaters)

2

N

None

PI1-092

HO2 Sensor 1/2 heater control circuit: short circuit to ground

HO2 Sensor 1/2 heater failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Oxygen sensor heaters)

2

N

None

PI1-092

HO2 Sensor 1/2 heater control circuit: open circuit; high resistance

HO2 Sensor 1/2 heater failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Oxygen sensor heaters)

2

N

ECM Default

1. Bank 2 closed loop fuel metering and adaptive fuel metering inhibited
2. Canister purge inhibited
3. Bank 2 upstream HO2S heater control circuit switched off

PI1-055-056-081-082

HO2 Sensor 2/1 heater power supply circuit: open circuit

HO2 Sensor 2/1 heater control circuit: open circuit, high resistance

HO2 Sensor 2/1 heater ground circuit(s) fault (PI1-081, PI1-082)

HO2 Sensor 2/1 heater failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Oxygen sensor heaters)

2

N

ECM Default

1. Bank 2 closed loop fuel metering and adaptive fuel metering inhibited
2. Canister purge inhibited
3. Bank 2 upstream HO2S heater control circuit switched off

PI1-055-056-081-082

HO2 Sensor 2/1 heater control circuit: short circuit to ground

HO2 Sensor 2/1 heater ground circuit(s) fault (PI1-081, PI1-082)

HO2 Sensor 2/1 heater failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Oxygen sensor heaters)

2

N

None

PI1-093

HO2 Sensor 2/2 heater control circuit: short circuit to ground

HO2 Sensor 2/2 heater failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Oxygen sensor heaters)

2

N

None

PI1-093

HO2 Sensor 2/2 heater control circuit: open circuit; high resistance

HO2 Sensor 2/2 heater failure

V8 SC EMS OBD II

Engine coolant temperature < 40 °C (104 °F)

Ambient temperature < 40 °C (104 °F)

Engine coolant temperature and ambient temperature within 10 °C (20 °F) of each other

Start engine and drive above 1500 rpm at a steady speed for a minimum of 2 minutes

2

A

ECM Default

1. Default value of 70 °C (158 °F) used

PI1-072

IAT Sensor 2 disconnected

IAT Sensor 2 to ECM sensing circuit: open circuit

IAT Sensor 2 failure

V8 SC EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. Default value of 70 °C (158 °F) used

PI1-072

IAT Sensor 2 disconnected

IAT Sensor 2 to ECM wiring: open circuit or high resistance

IAT Sensor 2 to ECM sensing circuit: short circuit to B+ voltage

IAT Sensor 2 failure

V8 SC EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. Default value of 70 °C (158 °F) used

PI1-072

IAT Sensor 2 to ECM wiring: short circuit to ground

IAT Sensor 2 failure

EMS OBD II

Fuel level > 25%.

Start engine and bring to normal operating temperature > 82 °C (180 °F)

Drive the vehicle steadily in 4th or 5th gear on a level road between

1700 - 2300 rpm (V6)

1200 - 1800 rpm (V8)

hold the engine speed constant for 40 seconds while maintaining a steady throttle

2

A

ECM Default

1. Default air mass used
2. Adaptive fuel metering inhibited
3. Catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-044

Blocked air cleaner

Air intake leak

Engine breather leak

Throttle control malfunction

MAF Sensor to ECM sensing circuit: high resistance, intermittent short circuit to ground

MAF Sensor supply circuit: high resistance

MAF Sensor failure

Throttle adaption fault (check throttle position voltage at Ignition ON)

EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. Default air mass used
2. Adaptive fuel metering inhibited
3. Catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-044

Blocked air cleaner

Air intake leak between MAF Sensor and throttle

MAF Sensor to ECM sensing circuit: high resistance, open circuit, intermittent short circuit to ground

MAF Sensor supply circuit: open circuit, short circuit to ground

MAF Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. Default air mass used
2. Adaptive fuel metering inhibited
3. Catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-044-045-046

MAF Sensor to ECM sensing circuit: short circuit to B+ voltage

MAF Sensor to ECM sensor ground circuit: open circuit

MAF Sensor failure

EMS OBD II

Fuel level > 25%

Start engine and bring to normal operating temperature > 82 °C (180 °F)

Drive the vehicle steadily in 4th or 5th gear on a level road between

1700 - 2300 rpm (V6)

1200 - 1800 rpm (V8)

hold the engine speed constant for 40 seconds while maintaining a steady throttle

2

N

ECM Default

1. Default value of 1.013 BAR (29.92 in hg) used

PI1-127

Intake manifold air leak (loose or missing component)

MAP Sensor to ECM circuit(s) fault

MAP Sensor failure

Throttle adaption fault (check throttle position voltage at Ignition ON)

EMS OBD II

Engine temperature cool (cooling fans not running)

Remove ignition key for 20 seconds (cooling fans not running)

Ignition key in, position II for 5 seconds (do not start)

Repeat cycle twice more

2

N

ECM Default

1. Default value of 1 BAR (29.53 in hg) used

BARO Sensor failure (internal ECM fault)

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value of 1 BAR (29.53 in hg) used

BARO Sensor failure (internal ECM fault)

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value of 1 BAR (29.53 in hg) used

BARO Sensor failure (internal ECM fault)

EMS OBD II

Engine OFF; coolant temperature <35 °C (95 °F)

Start engine and hold 3000 rpm in P or N for 30 seconds

2

N

ECM Default

1. Default value substituted 25 °C (77 °F) (V6) 50 °C (122 °F) V8

PI1-071

Blocked air cleaner

Air intake leak

Engine breather leak

IAT Sensor to ECM wiring: open circuit or high resistance

IAT Sensor to ECM sensing circuit: short circuit to high voltage

IAT Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value substituted 25 °C (77 °F) (V6) 50 °C (122 °F) V8

PI1-071

IAT Sensor disconnected

IAT Sensor to ECM wiring: open circuit or high resistance

IAT Sensor to ECM sensing circuit: short circuit to B+ voltage

IAT Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value substituted 25 °C (77 °F) (V6) 50 °C (122 °F) V8

PI1-071

IAT Sensor to ECM wiring: short circuit to ground

IAT Sensor failure

EMS OBD II

Engine coolant temperature and ambient temperature within 10 °C (20 °F) of each other

Start engine and drive the vehicle steadily in 4th or 5th gear above 1700 rpm until the engine coolant temperature reaches 80 °C (176 °F)

2

A

ECM Default

1. EOT value substituted (no greater than 95 °C (203 °F)
2. Closed loop fuel metering inhibited
3. Adaptive fuel metering inhibited
4. Catalyst warm-up ignition retard inhibited
5. Canister purge inhibited
6. Maximum engine speed reduced

PI1-070

ECT Sensor disconnected

Low coolant level

Contaminated coolant

Engine thermostat failure

ECT Sensor to ECM sensing circuit: open circuit, high resistance when hot, intermittent high resistance

ECT Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. EOT value substituted (no greater than 95 °C (203 °F)
2. Closed loop fuel metering inhibited
3. Adaptive fuel metering inhibited
4. Catalyst warm-up ignition retard inhibited
5. Canister purge inhibited
6. Maximum engine speed reduced

PI1-070

ECT Sensor disconnected

ECT Sensor to ECM sensing circuit: high resistance, open circuit, short circuit to B+ voltage

ECT Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. EOT value substituted (no greater than 95 °C (203 °F)
2. Closed loop fuel metering inhibited
3. Adaptive fuel metering inhibited
4. Catalyst warm-up ignition retard inhibited
5. Canister purge inhibited
6. Maximum engine speed reduced

PI1-070

Engine overheat condition

ECT Sensor to ECM wiring: short circuit to ground

ECT Sensor failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-075-076

TP Sensor to ECM wiring: open circuit, high resistance

TP Sensor to ECM sensing circuits (TP1 or TP2): short circuit to B+ voltage

TP Sensor failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-075

TP Sensor to ECM sensing circuit (TP1): open circuit, short circuit to ground, high resistance

TP Sensor failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-075

TP Sensor to ECM sensing circuit (TP1): short circuit to high voltage

TP Sensor failure

EMS OBD II

Engine coolant temperature and ambient temperature within 10 °C (20 °F) of each other

Start engine and drive the vehicle steadily in 4th or 5th gear above 1700 rpm until the engine coolant temperature reaches 80 °C (176 °F)

2

A

ECM Default

1. EOT value substituted (no greater than 95 °C (203 °F)
2. Closed loop fuel metering inhibited
3. Adaptive fuel metering inhibited
4. Catalyst warm-up ignition retard inhibited
5. Canister purge inhibited
6. Maximum engine speed reduced

PI1-070

ECT Sensor disconnected

Low coolant level

Contaminated coolant

Engine coolant thermostat failure

ECT Sensor to ECM sensing circuit: high resistance, open circuit or short circuit to high voltage

Engine cooling fan stuck on high speed

Above normal air flow through engine compartment due to accident damage and/or missing panels

EMS OBD II

Engine OFF; coolant temperature < 35 °C (95 °F)

Start engine and drive until normal engine operating temperature > 85 °C (180 °F)

2

N

None

Contaminated coolant

Engine coolant thermostat failure

ECT Sensor failure (ECT Sensor DTC(s) also flagged)

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Upstream oxygen sensors)

2

N

None

PI1-083-084

HO2 Sensor 1/1 disconnected

HO2 Sensor 1/1 to ECM variable current circuit fault (HO2 Sensor pin 3)

ECM to HO2 Sensor 1/1 constant current circuit fault (HO2 Sensor pin 4)

HO2 Sensor 1/1 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Upstream oxygen sensors)

2

N

None

PI1-083-084

HO2 Sensor 1/1 disconnected

HO2 Sensor 1/1 to ECM variable current circuit fault (HO2 Sensor pin 3)

ECM to HO2 Sensor 1/1 constant current circuit fault (HO2 Sensor pin 4)

HO2 Sensor 1/1 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Upstream oxygen sensors)

2

N

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Canister purge inhibited

PI1-083-084

Engine misfire

HO2 Sensor 1/1 disconnected

HO2 Sensor 1/1 mechanical damage

HO2 Sensor 1/1 to ECM wiring fault

HO2 Sensor 1/1 short circuit to ground

HO2 Sensor 1/1 to ECM wiring shield open circuit

HO2 Sensor 1/1 heater circuit fault

Exhaust leak

Low exhaust temperature

Injector flow partially blocked

Catalyst efficiency decrease

HO2 Sensor 1/1 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Downstream oxygen sensors)

2

N

None

PI1-128

HO2 Sensor 1/2 disconnected

HO2 Sensor 1/2 to ECM wiring open circuit

HO2 Sensor 1/2 short circuit to ground

HO2 Sensor 1/2 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Downstream oxygen sensors)

2

N

None

PI1-128

HO2 Sensor 1/2 sensing circuit: short circuit to high voltage

HO2 Sensor 1/2 ground (BRD - braided shield) open circuit

HO2 Sensor 1/2 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Downstream oxygen sensors)

2

N

None

PI1-128

HO2 Sensor 1/2 disconnected

HO2 Sensor 1/2 mechanical damage

HO2 Sensor 1/2 to ECM wiring open circuit

HO2 Sensor 1/2 sensing circuit: short circuit to high voltage

HO2 Sensor 1/2 short circuit to ground

HO2 Sensor 1/2 ground (BRD - braided shield) open circuit

Exhaust leak

Low exhaust temperature

HO2 Sensor 1/2 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Upstream oxygen sensors)

2

N

None

PI1-107-108

HO2 Sensor 2/1 disconnected

HO2 Sensor 2/1 to ECM variable current circuit fault (HO2 Sensor pin 3)

ECM to HO2 Sensor 2/1 constant current circuit fault (HO2 Sensor pin 4)

HO2 Sensor 2/1 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Upstream oxygen sensors)

2

N

None

PI1-107-108

HO2 Sensor 2/1 disconnected

HO2 Sensor 2/1 to ECM variable current circuit fault (HO2 Sensor pin 3)

ECM to HO2 Sensor 2/1 constant current circuit fault (HO2 Sensor pin 4)

HO2 Sensor 2/1 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Upstream oxygen sensors)

2

N

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Canister purge inhibited

PI1-107-108

Engine misfire

HO2 Sensor 2/1 disconnected

HO2 Sensor 2/1 mechanical damage

HO2 Sensor 2/1 to ECM wiring fault

HO2 Sensor 2/1 short circuit to ground

HO2 Sensor 2/1 to ECM wiring shield open circuit

HO2 Sensor 2/1 heater circuit fault

Exhaust leak

Low exhaust temperature

Injector flow partially blocked

Catalyst efficiency decrease

HO2 Sensor 2/1 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Downstream oxygen sensors)

2

N

None

PI1-129

HO2 Sensor 2/2 disconnected

HO2 Sensor 2/2 to ECM wiring open circuit

HO2 Sensor 2/2 short circuit to ground

HO2 Sensor 2/2 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Downstream oxygen sensors)

2

N

None

PI1-129

HO2 Sensor 2/2 sensing circuit: short circuit to high voltage

HO2 Sensor 2/2 ground (BRD - braided shield) open circuit

HO2 Sensor 2/2 failure

EMS OBD II

HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE

(Downstream oxygen sensors)

2

N

None

PI1-129

HO2 Sensor 2/2 disconnected

HO2 Sensor 2/2 mechanical damage

HO2 Sensor 2/2 to ECM wiring open circuit

HO2 Sensor 2/2 sensing circuit short circuit to high voltage

HO2 Sensor 2/2 short circuit to ground

HO2 Sensor 2/2 ground (BRD - braided shield) open circuit

Exhaust leak

Low exhaust temperature

HO2 Sensor 2/2 failure

EMS OBD II

Start engine and bring to normal operating temperature > 82 °C (180 °F)

Idle for 10 minutes

2

N

ECM Default

1. Bank 1 catalyst warm-up ignition retard inhibited
2. Bank 1 closed loop fuel metering inhibited
3. Canister purge inhibited
4. Maximum engine speed reduced

Engine misfire

Air intake leak between MAF Sensor and cylinder head

Fuel filter/system restriction

Fuel injector restriction

IP Sensor fault (low fuel pressure)

Low fuel pump output

HO2 Sensor(s) (1/1, 1/2) harness wiring condition fault

EFT Sensor fault (low fuel temperature)

MAF Sensor fault (low intake air flow)

Exhaust leak (before catalyst)

ECM receiving incorrect signal from one or more of the following components: ECT Sensor, MAF Sensor, IAT Sensor, IP Sensor, EFT Sensor, TP Sensor

EMS OBD II

Start engine and bring to normal operating temperature > 82 °C (180 °F)

Idle for 10 minutes

2

N

ECM Default

1. Bank 1 catalyst warm-up ignition retard inhibited
2. Bank 1 closed loop fuel metering inhibited
3. Canister purge inhibited
4. Maximum engine speed reduced

Restricted air filter

Leaking fuel injector(s)

IP Sensor fault (high fuel pressure)

EFT Sensor fault (high fuel temperature)

MAF Sensor fault (high intake air flow)

HO2 Sensor(s) (1/1, 1/2) harness wiring condition fault

ECM receiving incorrect signal from one or more of the following components: ECT Sensor, MAF Sensor, IAT Sensor, IP Sensor, EFT Sensor, TP Sensor

EMS OBD II

Start engine and bring to normal operating temperature > 82 °C (180 °F)

Idle for 10 minutes

2

N

ECM Default

1. Bank 2 catalyst warm-up ignition retard inhibited
2. Bank 2 closed loop fuel metering inhibited
3. Canister purge inhibited
4. Maximum engine speed reduced

Engine misfire

Air intake leak between MAF Sensor and cylinder head

Fuel filter/system restriction

Fuel injector restriction

IP Sensor fault (low fuel pressure)

Low fuel pump output

HO2 Sensor(s) (2/1, 2/2) harness wiring condition fault

EFT Sensor fault (low fuel temperature)

MAF Sensor fault (low intake air flow)

Exhaust leak (before catalyst)

ECM receiving incorrect signal from one or more of the following components: ECT Sensor, MAF Sensor, IAT Sensor, IP Sensor, EFT Sensor, TP Sensor

EMS OBD II

Start engine and bring to normal operating temperature > 82 °C (180 °F)

Idle for 10 minutes

2

N

ECM Default

1. Bank 2 catalyst warm-up ignition retard inhibited
2. Bank 2 closed loop fuel metering inhibited
3. Canister purge inhibited
4. Maximum engine speed reduced

Restricted air filter

Leaking fuel injector(s)

IP Sensor fault (high fuel pressure)

EFT Sensor fault (high fuel temperature)

MAF Sensor fault (high intake air flow)

HO2 Sensor(s) (2/1, 2/2) harness wiring condition fault

ECM receiving incorrect signal from one or more of the following components: ECT Sensor, MAF Sensor, IAT Sensor, IP Sensor, EFT Sensor, TP Sensor

EMS OBD II

Engine OFF; coolant temperature <35 °C (95 °F)

Start engine and drive until normal engine operating temperature > 82 °C (180 °F)

Drive for an additional 25 minutes

2

N

ECM Default

1. Default value of 25 °C (77 °F) used

PI1-050

EFT Sensor disconnected

EFT Sensor to ECM sensing circuit: high resistance, open circuit, short circuit to ground short circuit to high voltage

EFT Sensor to splice sensor ground circuit: high resistance, open circuit

EFT Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value of 25 °C (77 °F) used

PI1-050

EFT Sensor to ECM sensing circuit: short circuit to ground

EFT Sensor to splice sensor ground circuit: short circuit

EFT Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value of 25 °C (77 °F) used

PI1-050

EFT Sensor disconnected

EFT Sensor to ECM sensing circuit: high resistance, open circuit, short circuit to high voltage

EFT Sensor to splice sensor ground circuit: high resistance, open circuit

EFT Sensor failure

EMS OBD II

Fuel level > 25%

Idle engine 30 seconds

Accelerate from stop through complete engine rpm range; coast to a stop

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes; coast to a stop

Accelerate smoothly through complete accelerator pedal travel; coast to a stop

Idle engine 30 seconds

2

N

ECM Default

1. Default value of 3.80 BAR (55.11 psi) used
2. Fuel pump feedback control inhibited

PI1-073

Fuel filter/system restriction

Fuel system leak

Incorrect fuel pump output

IP Sensor to ECM sensing circuit: high resistance, open circuit, short circuit to ground, short circuit to high voltage

IP Sensor to splice sensor supply circuit: high resistance, open circuit

IP Sensor to splice sensor ground circuit: high resistance, open circuit, short circuit to ground, short circuit to high voltage

IP Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value of 3.80 BAR (55.11 psi) used
2. Fuel pump feedback control inhibited

PI1-073

IP Sensor disconnected

IP Sensor to ECM sensing circuit: open circuit or short circuit to ground

IP Sensor to splice sensor supply circuit: high resistance open circuit

IP Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value of 3.80 BAR (55.11 psi) used
2. Fuel pump feedback control inhibited

PI1-073

IP Sensor to ECM wiring (supply, sense): short circuit to each other

IP Sensor to ECM sense circuit: short circuit to high voltage

IP Sensor to splice sensor ground circuit: open circuit

IP Sensor failure

EMS OBD II

Engine OFF; coolant temperature <35 °C (95 °F)

Start engine and drive until normal engine operating temperature > 82 °C (180 °F)

2

N

ECM Default

1. ECT substituted

PI1-078

EOT Sensor to ECM sensing circuit; high resistance when hot, intermittent high resistance

EOT Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. ECT substituted

PI1-078

EOT Sensor to ECM sensing circuit: short circuit to ground

EOT Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. ECT substituted

PI1-078

EOT Sensor disconnected

EOT Sensor to ECM sensing circuit: high resistance, open circuit, short circuit to B+ voltage

EOT Sensor failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Bank 1 adaptive fuel metering inhibited
3. Bank 1 catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

V6 PI1-115 V8 PI1-120

Injector disconnected

Injector harness wiring: open circuit, short circuit

Injector failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 2 closed loop fuel metering inhibited
2. Bank 2 adaptive fuel metering inhibited
3. Bank 2 catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

V6 PI1-120 V8 PI1-115

Injector disconnected

Injector harness wiring: open circuit, short circuit

Injector failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Bank 1 adaptive fuel metering inhibited
3. Bank 1 catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-114

Injector disconnected

Injector harness wiring: open circuit, short circuit

Injector failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 2 closed loop fuel metering inhibited
2. Bank 2 adaptive fuel metering inhibited
3. Bank 2 catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-119

Injector disconnected

Injector harness wiring: open circuit, short circuit

Injector failure

EMS OBD II

Start engine.

Battery voltage > 12 volts

Idle for 2 minutes.

2

A

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Bank 1 adaptive fuel metering inhibited
3. Bank 1 catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-113

Injector disconnected

Injector harness wiring: open circuit, short circuit

Injector failure

EMS OBD II

Start engine.

Battery voltage > 12 volts

Idle for 2 minutes.

2

A

ECM Default

1. Bank 2 closed loop fuel metering inhibited
2. Bank 2 adaptive fuel metering inhibited
3. Bank 2 catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-118

Injector disconnected

Injector harness wiring: open circuit, short circuit

Injector failure

V8 EMS OBD II

Start engine.

Battery voltage > 12 volts

Idle for 2 minutes.

2

A

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Bank 1 adaptive fuel metering inhibited
3. Bank 1 catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-117

Injector disconnected

Injector harness wiring: open circuit, short circuit

Injector failure

V8 EMS OBD II

Start engine.

Battery voltage > 12 volts

Idle for 2 minutes.

2

A

ECM Default

1. Bank 2 closed loop fuel metering inhibited
2. Bank 2 adaptive fuel metering inhibited
3. Bank 2 catalyst warm up ignition retard inhibited
4. Canister purge inhibited
5. Maximum engine speed reduced

PI1-112

Injector disconnected

Injector harness wiring: open circuit, short circuit

Injector failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-076

TP Sensor to ECM sensing circuit (TP2): open circuit, short circuit to ground, high resistance

TP Sensor failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-076

TP Sensor to ECM sensing circuit (TP2): short circuit to high voltage

TP Sensor failure

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

ECM to ignition coil primary circuit fault (Cylinder misfire detected DTC also flagged)

Fuel injector circuit fault(s) (Injector DTCs also flagged)

Ignition coil failure

Spark plug failure/fouled/incorrect gap

Cylinder compression low

Fuel delivery pressure (low/high)

Fuel injector(s) restricted/leaking

Fuel injector(s) continuously open

Fuel contamination

Worn camshaft/broken valve spring(s)

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

Refer to P0300 Possible Causes

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

Refer to P0300 Possible Causes

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

Refer to P0300 Possible Causes

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

Refer to P0300 Possible Causes

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

Refer to P0300 Possible Causes

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

Refer to P0300 Possible Causes

V8 EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

Refer to P0300 Possible Causes

V8 EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

1 or 2

N

None

Refer to P0300 Possible Causes

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Maximum ignition retard
2. Maximum engine speed reduced

PI1-098

Poor sensor contact with the cylinder block

KS to ECM sense circuit short circuit to ground

KS failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Maximum ignition retard
2. Maximum engine speed reduced

PI1-098

Poor sensor contact with the cylinder block

KS to ECM sense circuit: high resistance, open circuit, short circuit to high voltage

KS failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Maximum ignition retard
2. Maximum engine speed reduced

PI1-099

Poor sensor contact with the cylinder block

KS to ECM sense circuit short circuit to ground

KS failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Maximum ignition retard
2. Maximum engine speed reduced

PI1-099

Poor sensor contact with the cylinder block

KS to ECM sense circuit: high resistance, open circuit, short circuit to high voltage

KS failure

EMS OBD II

Start engine; increase engine speed to 1500 rpm and hold for 30 seconds

Repeat 2 additional times

Note. If CKP Sensor fault exists, engine will start after approximately 5 seconds of cranking as the ECM will default to CMP Sensor 1 signal for synchronization.

2

A

ECM Default

1. Maximum engine speed reduced
2. CMP Sensor 1 signal used for synchronization

PI1-036-037

CKP Sensor disconnected

CKP Sensor gap incorrect/foreign matter on sensor face

CKP Sensor sensing circuit: open circuit, short circuit to ground, short circuit to high voltage

CKP Sensor failure

EMS OBD II

Start engine; momentarily race the engine; stop engine

Repeat 2 additional times

Start engine; drive vehicle; select 2nd gear

Accelerate smoothly through complete accelerator pedal travel; coast to a stop

2

A

ECM Default

1. Maximum engine speed reduced

PI1-036-037

CKP Sensor reluctor: foreign matter/damaged teeth

CKP Sensor sensing circuit: intermittent open circuit, short circuit to ground, short circuit to high voltage

CKP Sensor failure

EMS OBD II

Start engine; momentarily race the engine; stop engine

Repeat 2 additional times

Idle engine 1 minute

2

N

None

PI1-094-095

CMP Sensor disconnected

CMP Sensor gap incorrect/foreign matter on sensor face

CMP Sensor sensing circuit: open circuit, short circuit to ground, short circuit to high voltage

CMP Sensor 1 failure

EMS OBD II

Start engine; momentarily race the engine; stop engine

Repeat 2 additional times

Idle engine 1 minute

2

N

None

PI1-094-095

CMP Sensor disconnected

CMP Sensor gap incorrect/foreign matter on sensor face

CMP Sensor sensing circuit: open circuit, short circuit to ground, short circuit to high voltage

CMP Sensor 1 failure

EMS OBD II

Start engine; momentarily race the engine; stop engine

Repeat 2 additional times

Idle engine 1 minute

2

N

None

PI1-068-069

CMP Sensor disconnected

CMP Sensor gap incorrect/foreign matter on sensor face

CMP Sensor sensing circuit: open circuit, short circuit to ground, short circuit to high voltage

CMP Sensor 2 failure

EMS OBD II

Start engine; momentarily race the engine; stop engine

Repeat 2 additional times

Idle engine 1 minute

2

N

None

PI1-068-069

CMP Sensor disconnected

CMP Sensor gap incorrect/foreign matter on sensor face

CMP Sensor sensing circuit: open circuit, short circuit to ground, short circuit to high voltage

CMP Sensor 2 failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Bank 1 sub feedback control inhibited
3. Bank 1 adaptive fuel metering inhibited
4. Maximum engine speed reduced
5. Fuel injection cut off (cylinder 1)

PI1-087

ECM to ignition module primary circuit: open circuit, short circuit to ground, high resistance

Ignition module ground circuit: open circuit, high resistance

Ignition module/coil failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 2 closed loop fuel metering inhibited
2. Bank 2 sub feedback control inhibited
3. Bank 2 adaptive fuel metering inhibited
4. Maximum engine speed reduced
5. Fuel injection cut off (cylinder 2)

PI1-061

ECM to ignition module primary circuit: open circuit, short circuit to ground, high resistance

Ignition module ground circuit: open circuit, high resistance

Ignition module/coil failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Bank 1 sub feedback control inhibited
3. Bank 1 adaptive fuel metering inhibited
4. Maximum engine speed reduced
5. Fuel injection cut off (cylinder 3)

PI1-088

ECM to ignition module primary circuit: open circuit, short circuit to ground, high resistance

Ignition module ground circuit: open circuit, high resistance

Ignition module/coil failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 2 closed loop fuel metering inhibited
2. Bank 2 sub feedback control inhibited
3. Bank 2 adaptive fuel metering inhibited
4. Maximum engine speed reduced
5. Fuel injection cut off (cylinder 4)

PI1-062

ECM to ignition module primary circuit: open circuit, short circuit to ground, high resistance

Ignition module ground circuit: open circuit, high resistance

Ignition module/coil failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Bank 1 sub feedback control inhibited
3. Bank 1 adaptive fuel metering inhibited
4. Maximum engine speed reduced
5. Fuel injection cut off (cylinder 5)

PI1-089

ECM to ignition module primary circuit: open circuit, short circuit to ground, high resistance

Ignition module ground circuit: open circuit, high resistance

Ignition module/coil failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 2 closed loop fuel metering inhibited
2. Bank 2 sub feedback control inhibited
3. Bank 2 adaptive fuel metering inhibited
4. Maximum engine speed reduced
5. Fuel injection cut off (cylinder 6)

PI1-063

ECM to ignition module primary circuit: open circuit, short circuit to ground, high resistance

Ignition module ground circuit: open circuit, high resistance

Ignition module/coil failure

V8 EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

ECM Default

1. Bank 1 closed loop fuel metering inhibited
2. Bank 1 sub feedback control inhibited
3. Bank 1 adaptive fuel metering inhibited
4. Maximum engine speed reduced
5. Fuel injection cut off (cylinder 7)

PI1-090

ECM to ignition module primary circuit: open circuit, short circuit to ground, high resistance

Ignition module ground circuit: open circuit, high resistance

Ignition module/coil failure

V8 EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Bank 2 closed loop fuel metering inhibited
2. Bank 2 sub feedback control inhibited
3. Bank 2 adaptive fuel metering inhibited
4. Maximum engine speed reduced
5. Fuel injection cut off (cylinder 8)

PI1-064

ECM to ignition module primary circuit: open circuit, short circuit to ground, high resistance

Ignition module ground circuit: open circuit, high resistance

Ignition module/coil failure

V8 EMS OBD II

EXHAUST GAS RECIRCULATION MONITOR DRIVE CYCLE

2

N

None

EGR valve incorrectly fitted or loose

EGR pipe blocked

EGR valve stuck open/closed, blocked

EGR valve failure

V8 EMS OBD II

Ignition ON 10 seconds

2

N

None

IP1-057-058-059-060

EGR valve power supply circuit open circuit

EGR valve to ECM drive circuit pair (EGR valve pins 1/4, 6/3): open circuit, high resistance

EGR valve failure (stepper motor open circuit)

V8 EMS OBD II

Ignition ON 10 seconds

2

N

None

IP1-057-058-059-600

EGR valve to ECM drive circuit pair (EGR valve pins 1/4, 6/3): short circuit to ground or high voltage

EGR valve failure (stepper motor short circuit)

EMS OBD II

CATALYST EFFICIENCY MONITOR DRIVE CYCLE

2

N

None

HO2 Sensor disconnected

HO2 Sensor to ECM wiring fault

HO2 Sensor heater to ECM wiring fault

HO2 Sensor heater failure

Upstream HO2 Sensor failure

Downstream HO2 Sensor failure

Catalyst failure

EMS OBD II

CATALYST EFFICIENCY MONITOR DRIVE CYCLE

2

N

None

HO2 Sensor disconnected

HO2 Sensor to ECM wiring fault

HO2 Sensor heater to ECM wiring fault

HO2 Sensor heater failure

Upstream HO2 Sensor failure

Downstream HO2 Sensor failure

Catalyst failure

EMS OBD II

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

Fuel cap seal defective

EVAP system leak (canister damage, pipework damage)

EVAP Canister purge valve to ECM drive circuit: open circuit, short circuit, high resistance

EVAP Canister purge valve power supply circuit: open circuit, short circuit

EVAP Canister purge valve to engine purge pipe: restricted, leaking, disconnected

EVAP Canister purge valve operating vacuum hose leak/restriction

EVAP Canister purge valve failure

Fuel tank leak

EMS OBD II

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

PI1-066

EVAP Canister purge valve to ECM drive circuit: open circuit, short circuit, high resistance

EVAP Canister purge valve power supply circuit: open circuit, short circuit

EVAP Canister purge valve operating vacuum hose leak/restriction

EVAP Canister purge valve failure

EMS OBD II

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

PI1-066

EVAP Canister purge valve disconnected

EVAP Canister purge valve to ECM drive circuit: open circuit, high resistance

EVAP Canister purge valve failure

EMS OBD II

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

PI1-066

EVAP Canister purge valve to ECM drive circuit: short circuit to ground

EVAP Canister purge valve failure

EMS OBD II

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

PI1-067

EVAP canister close valve power supply circuit: open circuit, short circuit

EVAP canister close valve to ECM drive circuit: open circuit, high resistance, short circuit to B+ voltage

EVAP canister close valve failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

PI1-067

EVAP canister close valve power supply circuit: open circuit, short circuit

EVAP canister close valve to ECM drive circuit: open circuit, high resistance, short circuit to B+ voltage

EVAP canister close valve failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

PI1-067

EVAP canister close valve to ECM drive circuit: short to ground

EVAP canister close valve failure

EMS OBD II

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

2

N

None

PI1-104

FTP Sensor disconnected

FTP Sensor to ECM sense circuit: open circuit, short circuit to ground, short circuit to B+ voltage

FTP Sensor to splice sensor supply circuit: open circuit, high resistance

FTP Sensor to splice ground circuit: open circuit, high resistance

FTP Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

None

PI1-104

FTP Sensor disconnected

FTP Sensor to ECM sense circuit: open circuit, short circuit to ground

FTP Sensor to splice sensor supply circuit: open circuit, high resistance

FTP Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

None

PI1-104

FTP Sensor to splice sensor ground circuit: open circuit, high resistance

FTP Sensor to ECM sense circuit: short circuit to high voltage

FTP Sensor failure

EMS OBD II

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

Fuel cap off

Fuel cap seal defective

EVAP system leak (canister damage, pipework damage)

EVAP Canister purge valve to ECM drive circuit: open circuit, short circuit, high resistance

EVAP Canister purge valve power supply circuit: open circuit, short circuit

EVAP Canister purge valve to engine purge pipe: restricted, leaking, disconnected

EVAP Canister purge valve operating vacuum hose leak/restriction

EVAP Canister purge valve failure

Fuel tank leak

EMS OBD II

EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE (OBD II ONLY)

2

N

ECM Default

1. Canister purge inhibited
2. Adaptive fuel metering inhibited

Fuel cap seal defective

EVAP system leak (canister damage, pipework damage)

EVAP Canister purge valve to ECM drive circuit: open circuit, short circuit, high resistance

EVAP Canister purge valve power supply circuit: open circuit, short circuit

EVAP Canister purge valve to engine purge pipe: restricted, leaking

EVAP Canister purge valve operating vacuum hose leak/restriction

EVAP Canister purge valve failure

Fuel tank leak

EMS OBD II

Fuel tank empty

Fill in stages: 1/4, 1/2, 3/4, full

Check fuel gauge reading at each stage

2

N

None

Fuel level sensor to Rear Electronic Control Module circuit(s): intermittent short circuit, open circuit, high resistance

Fuel level sensor failure

Rear Electronic Control Module fault (incorrect fuel level data)

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

N

N

ECM Default

1. With ignition ON, fan operates at maximum speed

PI1-051

ECM to radiator cooling fan module drive circuit: short circuit, open circuit, high resistance

Radiator cooling fan fault

Radiator cooling fan module fault

EMS OBD II

Start engine and drive until normal engine operating temperature > 82 °C (180 °F)

Stop vehicle and idle 30 seconds

Drive vehicle for 2 minutes

Stop vehicle and idle 30 seconds

Repeat drive/idle two additional times

2

N

None

Air intake restriction

Accessory drive overload (defective/seized component)

Throttle valve stuck closed

Throttle body failure

EMS OBD II

Start engine and drive until normal engine operating temperature > 82 °C (180 °F)

Stop vehicle and idle 30 seconds

Drive vehicle for 2 minutes

Stop vehicle and idle 30 seconds

Repeat drive/idle two additional times

2

N

None

Intake air leak between MAF sensor and throttle

Intake air leak between throttle and engine

Engine crankcase breather leak

Throttle valve stuck open

Throttle body failure

EMS JAG

Start engine

Use WDS to monitor air conditioning pressure sensor signal voltage

Set climate control to a low temperature; operate for 2 minutes

Switch off climate control; wait 2 minutes

N

N

ECM Default

1. Air conditioning compressor clutch inhibited

PI1-121

Air conditioning pressure sensor disconnected

Air conditioning pressure sensor to ECM sense circuit: open circuit, short circuit to ground

Air conditioning pressure sensor to splice sensor supply circuit: open circuit, high resistance

Air conditioning pressure sensor failure

EMS JAG

Start engine

Use WDS to monitor air conditioning pressure sensor signal voltage

Set climate control to a low temperature; operate for 2 minutes

Switch off climate control; wait 2 minutes

N

N

ECM Default

1. Air conditioning compressor clutch inhibited

PI1-121

Air conditioning pressure sensor to splice sensor ground circuit: open circuit, high resistance

Air conditioning pressure sensor to ECM sense circuit: short circuit to high voltage

Air conditioning pressure sensor failure

EMS OBD II

Engine temperature cool (cooling fans not running)

Remove ignition key for 20 seconds (cooling fans not running)

Ignition key in, position II for 5 seconds (do not start)

Repeat cycle two additional times

2

N

None

PI1-022

ECM battery power supply open circuit, high resistance

EMS JAG

Ignition ON 45 seconds

N

A

ECM Default

1. Speed control inhibited

PI1-047

Speed control switches internal steering wheel circuit: short circuit to ground

Steering wheel cassette reel: short circuit to ground

Cassette reel to ECM circuit: short circuit to ground

CANCEL switch failure (stuck ON)

EMS JAG

Ignition ON 45 seconds

N

A

ECM Default

1. Speed control inhibited

PI1-047

Speed control switches internal steering wheel circuit: short circuit to ground

Steering wheel cassette reel: short circuit to ground

Cassette reel to ECM circuit: short circuit to ground

RESUME switch failure (stuck ON)

EMS JAG

Ignition ON 45 seconds

N

A

ECM Default

1. Speed control inhibited

PI1-047

Speed control switches internal steering wheel circuit: open circuit; high resistance

Steering wheel cassette reel open circuit, high resistance

Cassette reel to ECM circuit: open circuit, high resistance

EMS JAG

Ignition ON for more than 5 minutes

N

A

ECM Default

1. Speed control inhibited

PI1-047

Speed control switches internal steering wheel circuit: short circuit to ground

Steering wheel cassette reel: short circuit to ground

Cassette reel to ECM circuit: short circuit to ground

SET/- switch failure

EMS JAG

Ignition ON for more than 5 minutes

N

A

ECM Default

1. Speed control inhibited

PI1-047

Speed control switches internal steering wheel circuit: short circuit to ground

Steering wheel cassette reel: short circuit to ground

Cassette reel to ECM circuit: short circuit to ground

SET/+ switch failure

EMS OBD II

Engine temperature cool (cooling fans not running)

Remove ignition key for 20 seconds (cooling fans not running)

Ignition key in, position II for 5 seconds (do not start)

Repeat cycle two additional times.

2

N

None

ECM Failure

TRANS OBD II

Ignition ON 10 seconds

2

A

None

TCM/Control valve failure

TRANS OBD II

Ignition ON 10 seconds

N

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS JAG

Ignition ON 10 seconds

N

A

None

Reconfigure TCM using WDS

EMS OBD II

Ignition ON

Battery voltage > 12 volts

Automatic - P or N selected; manual - clutch fully pressed

Crank engine for more than 2 seconds

2

N

None

PI1-041

Starter relay drive circuit: short circuit to high voltage

Starter relay failure

TRANS OBD II

Ignition ON 10 seconds

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

EMS OBD II

Start engine

Climate control system OFF

Idle for 10 seconds

2

N

None

PI1-034

A/C Compressor clutch relay drive circuit: open circuit, high resistance

A/C Compressor clutch relay failure

EMS OBD II

Start engine

Climate control system ON - full cooling

Idle for 2 minutes

2

N

None

PI1-034

A/C Compressor clutch relay drive circuit: short circuit to high voltage

A/C Compressor clutch relay failure

TRANS OBD II

Ignition ON 10 seconds

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS JAG

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes. Coast to a stop.

N

N

None

TCM/Control valve failure

TRANS OBD II

Drive vehicle from stop to 113 km/h (70 mph). Coast to a stop.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Ignition ON 10 seconds

2

A

TCM Default

1. Mechanical limp home mode

GB2-14

Battery power supply fuse failure

Battery power supply: intermittent open circuit

TRANS OBD II

Switch ignition ON. Move the gear selector slowly from P to the 2 position, then back to P

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS JAG

Switch ignition ON. Move the gear selector slowly from P to the 2 position, then back to P

N

A

TCM Default

1. Shift strategy fixed
2. J Gate "manual" function disabled

TCM/J Gate Module CAN fault

J Gate Module failure

TCM/Control valve failure

TRANS JAG

Switch ignition ON. Move the gear selector slowly from P to the 2 position, then back to P

N

A

TCM Default

1. Shift strategy fixed
2. J Gate "manual" function disabled

J Gate Module failure

TRANS JAG

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes. Coast to a stop.

N

N

None

TCM/Control valve failure

TRANS JAG

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes. Coast to a stop.

N

N

None

TCM/ECM CAN Fault

TCM/Control valve failure

TRANS OBD II

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes. Coast to a stop.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS JAG

Drive vehicle from stop to 113 km/h (70 mph). Coast to a stop.

N

N

TCM Default

1. Mechanical limp home mode
2. Substitute DSC vehicle speed for transmission output speed

TCM/Control valve failure

TRANS OBD II

Drive vehicle from stop to 113 km/h (70 mph). Coast to a stop.

2

A

TCM Default

1. Mechanical limp home mode
2. Substitute DSC vehicle speed for transmission output speed

Transmission mechanical failure

TCM/Control valve failure

TRANS OBD II

Using full acceleration, drive vehicle from stop to 113 km/h (70 mph). Coast to a stop.

2

A

TCM Default

1. Mechanical limp home mode

TCM/ECM CAN Fault

TRANS OBD II

Drive vehicle from stop to 113 km/h (70 mph). Ensure that Sixth gear is engaged by moving the gear selector to the 5 position and observing that the transmission down shifts. Coast to a stop.

2

A

TCM Default

1. Mechanical limp home mode

Transmission mechanical failure

TRANS JAG

Drive vehicle from stop to 113 km/h (70 mph). Ensure that Sixth gear is engaged by moving the gear selector to the 5 position and observing that the transmission down shifts. Coast to a stop

N

N

None

Transmission mechanical failure

TRANS OBD II

Start vehicle and select gear position 2. Accelerate hard until the engine speed reaches 4500 rpm, after the transmission has shifted to second gear. Stop the vehicle.

Repeat two additional times

2

A

TCM Default

1. Mechanical limp home mode

Transmission mechanical failure

TRANS OBD II

Start vehicle and select gear position 2. Accelerate the vehicle until second gear is engaged. Drive the vehicle for 5 minutes in second gear. Vary the vehicle speed and acceleration rate.

2

A

TCM Default

1. Mechanical limp home mode

Transmission mechanical failure

TRANS OBD II

Start vehicle and select gear position 3. Accelerate the vehicle until third gear is engaged. Drive the vehicle for 5 minutes in third gear. Vary the vehicle speed and acceleration rate.

2

A

TCM Default

1. Mechanical limp home mode

Transmission mechanical failure

TRANS OBD II

Start vehicle and select gear position 4. Accelerate the vehicle until fourth gear is engaged. Drive the vehicle for 5 minutes in fourth gear. Vary the vehicle speed and acceleration rate.

2

A

TCM Default

1. Mechanical limp home mode

Transmission mechanical failure

TCM/Control valve failure

TRANS OBD II

Start vehicle and select gear position 5. Accelerate the vehicle until fifth gear is engaged. Drive the vehicle for 5 minutes in fifth gear. Vary the vehicle speed and acceleration rate.

2

A

TCM Default

1. Mechanical limp home mode

Transmission mechanical failure

TCM/Control valve failure

TRANS OBD II

Start vehicle and select REVERSE gear. Accelerate the vehicle at different rates for 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

Transmission mechanical failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS JAG

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

N

N

TCM Default

1. Deactivate torque converter clutch pressure regulator; lock up clutch disabled

TCM/Control valve failure

Transmission mechanical failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS JAG

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

N

N

None

Transmission mechanical failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Electronic limp home mode

Transmission mechanical failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Electronic limp home mode

Transmission mechanical failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Electronic limp home mode

Transmission mechanical failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Electronic limp home mode

Transmission mechanical failure

TRANS OBD II

Ignition ON 10 seconds

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Mechanical limp home mode

TCM/Control valve failure

TRANS JAG

Ignition ON. Slowly move gear selector from Park to Drive, then back to Park.

N

A

None

J Gate incorrectly adjusted

J Gate Module failure

TRANS OBD II

Drive the vehicle at 113 km/h (70 mph), then reduce the throttle angle until the torque convertor locks. Ensure that the torque convertor remains locked for at least 1 minute.

2

A

TCM Default

1. Electronic limp home mode

Transmission mechanical failure

TRANS (ECM) OBD II

Drive vehicle 60 - 100 km/h (37 - 62 mph)

V6: 1800 - 3000 rpm; engine load > 0.60 g/rpm

V8:1800 - 2500 rpm; engine load > 0.40 g/rpm

Continue for 30 seconds

2

N

None

PI1-033

Clutch cancel switch supply circuit: open circuit

Clutch cancel switch to ECM circuit: open circuit, high resistance

Clutch cancel switch failure

TRANS (ECM) OBD II

Drive vehicle > 10 km/h (6 mph); shift from 1st to 2nd; stop vehicle

Repeat 6 times

2

N

None

PI1-033

Clutch cancel switch to ECM circuit: short circuit to high voltage

Clutch cancel switch failure

TRANS (ECM) JAG

Drive vehicle > 10 km/h (6 mph); shift from 1st to 2nd; stop vehicle

Repeat 30 times

N

N

None

PI1-031

Clutch pedal safety switch supply circuit: open circuit

Clutch pedal safety switch to ECM circuit: open circuit, high resistance

Clutch pedal safety switch failure

TRANS (ECM) JAG

Drive vehicle 60 - 100 km/h (37 - 62 mph)

V6: 1800 - 3000 rpm; engine load > 0.60 g/rpm

V8: 1800 - 2500 rpm; engine load > 0.40 g/rpm

Continue for 30 seconds

N

N

None

PI1-031

Clutch pedal safety switch to ECM circuit: short circuit to high voltage

Clutch pedal safety switch failure

TRANS (ECM) JAG

Ignition ON 10 seconds

N

A

ECM Default

1. Speed control inhibited
2. Maximum throttle opening for N range inhibited
3. Throttle opening limited to 30%
4. Maximum engine speed reduced

PI1-123-124

CAN open circuit fault

CAN short circuit fault

J Gate failure

EMS JAG

System Readiness Test

N

N

None

Refer to OBD SYSTEM READINESS - ENGINE MANAGEMENT

EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. Calculated default air mass used
2. Adaptive fuel metering inhibited
3. Sub feedback control inhibited
4. Catalyst warm up ignition retard inhibited
5. EGR inhibited (V8)
6. Canister purge inhibited
7. Maximum engine speed reduced

PI1-045-046

MAF Sensor to ECM sensor ground circuit open circuit, short circuit to high voltage, high resistance

MAF Sensor to ECM sensing circuit: open circuit

MAF Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value of 1.013 BAR (29.92 in hg) used

PI1-127

MAP Sensor to ECM sense circuit: open circuit, short circuit to ground

MAP Sensor sensor supply circuit (to splice): open circuit

MAP Sensor failure

EMS OBD II

Ignition ON 10 seconds

2

N

ECM Default

1. Default value of 1.013 BAR (29.92 in hg) used

PI1-127

MAP Sensor sensor ground circuit (to splice): open circuit

MAP Sensor to ECM sense circuit: short circuit to high voltage

MAP Sensor failure

EMS JAG

System Readiness Test

N

N

None

Refer to OBD SYSTEM READINESS - ENGINE MANAGEMENT

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period.

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. APP angle default value used
2. Speed control inhibited
3. APP adaptions (wear, variance) inhibited

PI1-102

APP Sensor to ECM sense circuit (APP1): open circuit, short circuit to ground, high resistance

APP Sensor sensor supply circuit: open circuit, high resistance

APP Sensor failure

EMS OBD II

Battery voltage > 10 volts

Ignition PI1ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. APP angle default value used
2. Speed control inhibited
3. APP adaptions (wear, variance) inhibited

PI1-102-103

APP Sensor sensor to ECM sense circuit(s) (APP1 or APP2): short circuit to high voltage

APP Sensor sensor ground circuit(s): open circuit

APP Sensor failure

V6 EMS OBD II

Battery voltage > 12 volts

Switch OFF all electrical consumers

Start engine; idle for 16 minutes with all electrical consumers switched OFF

2

C

None

PI1-053

Generator to ECM "CHARGE" circuit: open circuit, high resistance

Generator regulator failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. APP angle default value used
2. Speed control inhibited
3. APP adaptions (wear, variance) inhibited

PI1-103

APP Sensor to ECM sense circuit (APP2): open circuit, short circuit to ground, high resistance

APP Sensor sensor supply circuit (to splice): open circuit, high resistance

APP Sensor failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. APP angle default value used
2. Speed control inhibited
3. APP adaptions (wear, variance) inhibited

PI1-102-103

APP Sensor sensor to ECM sense circuit(s) (APP2 or APP1): short circuit to high voltage

APP Sensor sensor ground circuit(s) (to splice): open circuit

APP Sensor failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. Engine shut down
2. Speed control disabled

PI1-080-106-052-134

Throttle motor failure

Throttle body failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited
5. Speed control disabled

PI1-080-106-052-134-004-005-054

Throttle motor disconnected

Throttle motor to ECM drive circuits: short circuit or open circuit

ECM ground circuit fault(s) (PI1-004, 005, 054)

Throttle motor failure

Throttle body failure

V8 SC EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

N

ECM Default

1. Fuel pump 2 feedback control inhibited

PI1-053

ECM to Fuel Pump 2 Module control drive circuit: open circuit, short circuit, high resistance

Fuel Pump 2 Module failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

N

ECM Default

1. Fuel pump feedback control inhibited

PI1-027

ECM to Rear Electronic Control Module drive circuit: open circuit, short circuit, high resistance

Rear Electronic Control Module failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

N

ECM Default

1. Fuel pump feedback control inhibited

PI1-027

ECM to Rear Electronic Control Module drive circuit: open circuit, short circuit, high resistance

Rear Electronic Control Module failure

EMS OBD II

Ignition ON 10 seconds

2

R

None

PI1-012-013

ECM to sensors sensor supply voltage circuit(s): short circuit to ground, short circuit to high voltage, open circuit, high resistance

EMS OBD II

Ignition ON 10 seconds

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-012-013

ECM to sensors sensor supply voltage circuit(s): short circuit to ground

EMS OBD II

Ignition ON 10 seconds

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-012-013

ECM to sensors supply voltage circuit(s): open circuit, high resistance, short circuit to high voltage

EMS OBD II

Ignition ON 10 seconds

2

N

None

PI1-019-020

ECM to sensors sensor ground circuit(s): open circuit, high resistance

V6 EMS OBD II

Battery voltage > 12 volts

Switch OFF all electrical consumers

Start engine; idle for 16 minutes with all electrical consumers switched OFF

2

C

ECM Default

1. Cooling fan speed increased

PI1-053

Generator to ECM "CHARGE" circuit: short circuit to high voltage

Generator regulator failure

Generator failure

EMS OBD II

Remove starter relay

Turn ignition switch to position III (START); hold for > 1 second

2

N

None

PI1-006

Ignition switch to ECM circuit:: open circuit

Ignition switch failure

EMS OBD II

Drive vehicle > 15 km/h (9 mph) between 15090364000 rpm for 10 seconds; stop vehicle

Repeat 5 times

2

N

None

PI1-006

Ignition switch to ECM circuit: short circuit to high voltage

Ignition switch failure

EMS OBD II

Idle engine

Switch OFF ignition for 10 seconds

Start engine and repeat

2

R

ECM Default

1. Vehicle speed limited
2. Throttle opening limited to 30%
3. Speed control inhibited

Throttle return spring failure (throttle body failure)

EMS OBD II

Engine temperature cool (cooling fans not running)

Remove ignition key for 20 seconds (cooling fans not running)

Ignition key in, position II for 5 seconds (do not start)

Repeat cycle two additional times

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-052

Throttle motor relay coil power supply circuit: open circuit (fuse)

Throttle motor relay failure

Throttle motor relay coil to ECM circuit: open circuit

ECM ground circuit fault (relay coil drive)

EMS OBD II

Idle engine

Switch OFF ignition for 10 seconds

Start engine and repeat

2

R

ECM Default

1. Vehicle speed limited
2. Throttle opening limited to 30%
3. Speed control inhibited

Throttle limp home spring failure (throttle body failure)

EMS JAG

Start engine

N

N

None

Invalid ignition key code

Passive anti-theft system (PATS) signal to instrument pack missing or corrupted

Security message (PATS) CAN failure

Note. To clear this DTC, the failure must first be rectified, followed by an ignition ON cycle to allow a successful PATS identification exchange between the ECM and the IC. The fault code can then be cleared.

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

2

A

ECM Default

1. Maximum engine speed reduced

Cylinder compression low

Worn camshaft/broken valve spring(s)

Fuel delivery pressure (low/high)

Fuel injector(s) restricted/leaking

Fuel injector(s) continuously open

Fuel contamination

Fuel injector circuit fault(s) (Injector DTCs also flagged)

Spark plug failure/fouled/incorrect gap

ECM to ignition coil primary circuit fault (Cylinder misfire detected DTC also flagged)

Ignition coil failure

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

2

A

ECM Default

1. Maximum engine speed reduced

Cylinder compression low

Worn camshaft/broken valve spring(s)

Fuel delivery pressure (low/high)

Fuel injector(s) restricted/leaking

Fuel injector(s) continuously open

Fuel contamination

Fuel injector circuit fault(s) (Injector DTCs also flagged)

Spark plug failure/fouled/incorrect gap

ECM to ignition coil primary circuit fault (Cylinder misfire detected DTC also flagged)

Ignition coil failure

EMS OBD II

MISFIRE MONITOR DRIVE CYCLE

2

N

None

Cylinder compression low

Worn camshaft/broken valve spring(s)

Fuel delivery pressure (low/high)

Fuel injector(s) restricted/leaking

Fuel injector(s) continuously open

Fuel contamination

Fuel injector circuit fault(s) (Injector DTCs also flagged)

Spark plug failure/fouled/incorrect gap

ECM to ignition coil primary circuit fault (Cylinder misfire detected DTC also flagged)

Ignition coil failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

N

ECM Default

1. Fuel pump feedback control inhibited

PI1-027

Rear Electronic Control Module to fuel pump drive circuit: open circuit, short circuit, high resistance

Rear Electronic Control Module failure

Fuel pump failure

V8 SC EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

N

ECM Default

1. Fuel pump 2 feedback control inhibited

PI1-053-011

Fuel Pump 2 Module to fuel pump drive circuit: open circuit, short circuit, high resistance

Fuel Pump 2 Module to ECM monitor circuit: open circuit, short circuit, high resistance

Fuel Pump 2 Module failure

Fuel pump 2 failure

EMS OBD II

Start engine; momentarily race the engine; stop engine

Repeat 2 additional times

Idle engine 1 minute

2

N

None

PI1-068-069

CMP Sensor disconnected

CMP Sensor gap incorrect/foreign matter on sensor face

CMP Sensor sensing circuit: open circuit, short circuit to ground, short circuit to high voltage

CMP Sensor 2 failure

EMS OBD II

Start engine; momentarily race the engine; stop engine

Repeat 2 additional times

Idle engine 1 minute

2

N

None

PI1-068-069

CMP Sensor disconnected

CMP Sensor gap incorrect/foreign matter on sensor face

CMP Sensor sensing circuit: open circuit, short circuit to ground, short circuit to high voltage

CMP Sensor 2 failure

EMS OBD II

Battery voltage > 10 volts

Ignition ON

Slowly press accelerator pedal to the floor over a 5 second period

Slowly return the pedal to rest

Repeat 3 times

2

R

ECM Default

1. APP angle default value used
2. Speed control inhibited
3. APP adaptions (wear, variance) inhibited

PI1-102-103

APP Sensor to ECM sense circuits: short circuit, open circuit, high resistance

APP Sensor sensor supply circuits: short circuit, open circuit, high resistance

APP Sensor sensor ground circuits: open circuit

APP Sensor failure

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Closed loop fuel metering inhibited
2. Adaptive fuel metering inhibited
3. Catalyst warm up ignition retard inhibited
4. EGR Inhibited (V8)
5. Canister purge inhibited
6. Maximum engine speed reduced
7. Fuel injection cut off (bank 1 cylinders)

PI1-131

Ignition monitoring circuit between splice and ECM: open circuit, short circuit to ground, short circuit to B+ voltage

Ignition module/coil bank 1 ground circuit fault

EMS OBD II

Start engine

Battery voltage > 12 volts

Idle for 2 minutes

2

A

ECM Default

1. Closed loop fuel metering inhibited
2. Adaptive fuel metering inhibited
3. Catalyst warm up ignition retard inhibited
4. EGR Inhibited (V8)
5. Canister purge inhibited
6. Maximum engine speed reduced
7. Fuel injection cut off (bank 2 cylinders)

PI1-132

Ignition monitoring circuit between splice and ECM: open circuit, short circuit to ground, short circuit to B+ voltage

Ignition module/coil bank 2 ground circuit fault

EMS OBD II

Idle engine 30 seconds

Accelerate from stop through complete engine rpm range; coast to a stop

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes; coast to a stop

Accelerate smoothly through complete accelerator pedal travel; coast to a stop

Idle engine 30 seconds

2

N

ECM Default

1. Bank 1 VVT hold current set at a constant valve of 450 mA

PI1-109

VVT solenoid valve 1 to ECM PWM drive circuit fault

VVT solenoid valve 1 ground circuit fault

VVT solenoid 1 failure

Oil contamination

VVT 1 oil flow fault

VVT/camshaft mechanical failure - bank 1

EMS OBD II

Idle engine 30 seconds

Accelerate from stop through complete engine rpm range; coast to a stop

Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 5 minutes; coast to a stop

Accelerate smoothly through complete accelerator pedal travel; coast to a stop

Idle engine 30 seconds

2

N

ECM Default

1. Bank 2 VVT hold current set at a constant valve of 450 mA

PI1-110

VVT solenoid valve 2 to ECM PWM drive circuit fault

VVT solenoid valve 2 ground circuit fault

VVT solenoid 2 failure

Oil contamination

VVT 2 oil flow fault

VVT/camshaft mechanical failure - bank 2

V8 SC EMS JAG

Start engine

Idle for 2 minutes

N

N

None

PI1-014

ECM to air cleaner solenoid circuit: open circuit, short circuit, high resistance

Air cleaner solenoid failure

V8 SC EMS OBD II

Start engine and bring to normal engine operating temperature > 80 °C (176 °F)

Drive vehicle in Drive at 80 km/h (50 mph) - 105 km/h (65 mph) for > 10 minutes.

2

N

ECM Default

1. Default value of 70 °C (158 °F) used

Intercooler coolant pump failure

EMS OBD II

Drive vehicle

V6: > 15 km/h (9 mph) between 15091914000 rpm; engine load > 0.40 g/rpm

Continue for 30 seconds

V8: > 24 km/h (15 mph) between 15091924000 rpm for 30 seconds

2

A

ECM Default

1. Speed control inhibited
2. Maximum engine speed reduced

PI1-031

ECM P/N circuit: short circuit to ground, short circuit to high voltage; high resistance

Gear selector cable setting incorrect

J Gate assembly incorrect setting

J Gate/ECM CAN fault

EMS OBD II

Start engine in P

Start engine in N

Check that engine does not start in R, D, 5, 4, 3, 2

2

A

ECM Default

1. Speed control inhibited
2. Maximum throttle opening for N range inhibited
3. Maximum engine speed reduced

PI1-031

ECM P/N circuit: short circuit to ground, short circuit to high voltage; high resistance

Gear selector cable setting incorrect

J Gate assembly incorrect setting

J Gate/ECM CAN fault

V6 EMS OBD II

Battery voltage > 12 volts

Start engine and bring to normal operating temperature > 82 °C (180 °F)

Run engine at 5000 rpm in N for 20 seconds

2

N

ECM Default

1. IMT 2 Inhibited

PI1-039

IMT Valve 2 (bottom) disconnected

IMT Valve 2 (bottom) to ECM drive circuit fault

IMT Valve 2 (bottom) power supply circuit fault

IMT Valve 2 (bottom) failure

V6 EMS OBD II

Battery voltage > 12 volts

Start engine and bring to normal operating temperature > 82 °C (180 °F)

Run engine at 5000 rpm in N for 20 seconds

2

N

ECM Default

1. IMT 1 Inhibited

PI1-038

IMT Valve 1 (top) disconnected

IMT Valve 1 (top) to ECM drive circuit fault

IMT Valve 1 (top) power supply circuit fault

IMT Valve 1 (top) failure

EMS JAG

Start engine; idle in P, N

Press brake pedal for > 30 seconds; release brake pedal

Repeat 10 times

or

Drive > 80 km/h (50 mph) > 1 minute (do not press the brake pedal); momentarily press the brake pedal

Repeat 10 times

or

Using WDS, monitor both circuits

Pedal at rest = "0" (both circuits); pedal pressed = "1" (both circuits)

N

A

ECM Default

1. Speed control inhibited
2. Maximum engine speed reduced
3. J Gate locked in Park

PI1-008-009

Brake ON/OFF switch to ECM circuit: open circuit, short circuit to ground, high resistance

Brake ON/OFF power supply circuit: open circuit

Brake ON/OFF switch failure

Brake cancel switch to ECM circuit: open circuit, short circuit to ground, high resistance

Brake cancel switch power supply circuit: open circuit

Brake cancel switch failure

EMS JAG

1. Inertia switch activated
2. Throttle Limp Home mode
3. Engine starts and stumbles
4. Engine fail to start
5. Engine stall

N

N

None

PI1-010

If none of the five conditions occur, check

Inertia switch to ECM circuit: short circuit to B+ voltage

Inertia switch failure

TRANS OBD II

Ignition ON 10 seconds

1

A

None

TCM/Control valve failure

TRANS JAG

Ignition ON, then OFF. Cycle ignition switch 6 times.

N

N

None

GB2-14

Battery power supply circuit: open circuit, short circuit to ground

TCM/Control valve failure

EMS OBD II

Engine temperature cool (cooling fans not running)

Remove ignition key for 1 minute (cooling fans not running)

Ignition key in, position II for 5 seconds (do not start)

1

N

None

PI1-040

ECM control relay failure

ECM control relay to ECM circuit fault

ECM control relay coil power supply open circuit

ECM ground circuit fault (relay coil drive)

EMS OBD II

Ignition ON 10 seconds

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

ECM Failure

EMS OBD II

Drive vehicle

If fitted, engage speed control

Refer to Owner's Handbook and ensure that speed control engages normally

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

ECM Failure

V6 EMS OBD II

Battery voltage > 12 volts

Switch OFF all electrical consumers

Ignition ON 15 seconds

Start engine; momentarily idle with all electrical consumers switched OFF

Switch ignition OFF

Switch ignition ON

2

C

None

PI1-065

ECM to generator "FIELD" return circuit: open circuit, high resistance

Generator regulator failure

Generator failure

EMS OBD II

Engine temperature cool (cooling fans not running)

Remove ignition key for 20 seconds (cooling fans not running)

Ignition key in, position II for 5 seconds (do not start)

Repeat cycle twice more

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

PI1-052

Throttle motor relay coil power supply circuit: open circuit (fuse)

Throttle motor relay failure

Throttle motor relay coil to ECM drive circuit: open circuit, short circuit to ground

EMS OBD II

Battery voltage > 12 volts

Switch OFF all electrical consumers

Start engine; idle for 16 minutes with all electrical consumers switched OFF

If no reoccurrence of DTC(s): hold engine > 1509298m for one minute in N

2

C

None

PI1-079

ECM to generator "LOAD" feedback circuit: short circuit, open circuit, high resistance

Generator regulator failure

Generator failure

EMS OBD II

Ignition ON 10 seconds

2

R

ECM Default

1. Throttle motor and throttle motor relay disabled
2. Throttle valve opening set to default value
3. Idle speed controlled by fuel injection intervention
4. Idle speed adaption inhibited

ECM Failure

EMS OBD II

Idle engine

Switch OFF ignition for 10 seconds

Start engine and repeat

2

R

ECM Default

1. Vehicle speed limited
2. Throttle opening limited to 30%
3. Speed control inhibited

ECM Failure

EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. Speed control inhibited
2. Maximum throttle opening for N range inhibited
3. Throttle opening limited to 30%
4. Maximum engine speed reduced

PI1-123-124

CAN open circuit fault - DSCCM to ECM

CAN short circuit fault

DSCCM failure

ECM failure

EMS OBD II

Ignition ON 10 seconds

1

N

None

(Engine will not start - PATS failure)

PI1-123-124

CAN open circuit fault - IC to ECM

CAN short circuit fault

IC failure

ECM failure

EMS OBD II

Ignition ON 10 seconds

1

A

ECM Default

1. Speed control inhibited
2. Maximum throttle opening for N range inhibited
3. Throttle opening limited to 30%
4. Maximum engine speed reduced

(Engine will not start - PATS failure)

PI1-123-124

CAN short circuit fault

Control module failure - check for additional flagged DTC(s) to locate control module source

EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. Speed control inhibited
2. Maximum throttle opening for N range inhibited
3. Throttle opening limited to 30%
4. Maximum engine speed reduced

PI1-123-124

CAN open circuit fault - TCM to ECM

CAN short circuit fault

TCM failure

ECM failure

EMS OBD II

Drive vehicle for 10 minutes

2

N

ECM Default

1. HO2S 1/1 control circuit inhibited

HO2 Sensor 1/1 heater failure

HO2 Sensor 1/1 sensing circuit: short circuit to ground, short circuit to high voltage, open circuit, high resistance

ECM Failure

EMS OBD II

Drive vehicle for 10 minutes

2

N

ECM Default

1. HO2S 2/1 control circuit inhibited

HO2 Sensor 2/1 heater failure

HO2 Sensor 2/1 sensing circuit: short circuit to ground, short circuit to high voltage, open circuit, high resistance

ECM Failure

EMS OBD II

Start engine

Battery voltage > 12 volts.

Idle for 2 minutes

2

A

ECM Default

1. Maximum ignition retard
2. Maximum engine speed reduced

ECM Failure

EMS OBD II

Ignition ON 10 seconds

2

A

ECM Default

1. Maximum engine speed reduced

PI1-075

ECM Failure

EMS OBD II

Engine temperature cool (cooling fans not running)

Remove ignition key for 20 seconds (cooling fans not running)

Ignition key in, position II for 5 seconds (do not start)

Repeat cycle two additional times

2

R

ECM Default

1. Vehicle speed limited
2. Throttle opening limited to 30%
3. Speed control inhibited

PI1-052-134

Throttle motor relay failure

Throttle motor relay coil to ECM drive circuit: short circuit to B+ voltage

EMS OBD II

Engine temperature cool (cooling fans not running)

Remove ignition key for 20 seconds (cooling fans not running)

Ignition key in, position II for 5 seconds (do not start)

Repeat cycle two additional times

2

R

ECM Default

1. Vehicle speed limited
2. Throttle opening limited to 30%
3. Speed control inhibited

PI1-052

Throttle motor relay failure

Throttle motor relay coil to ECM drive circuit: short circuit to B+ voltage

EMS JAG

Ignition ON 30 seconds

N

N

ECM Default

1. Speed control inhibited

PI1-123-124

CAN open circuit fault - ASCCM to ECM

CAN short circuit fault

ASCCM failure

ECM failure

EMS JAG

Ignition ON 45 seconds

N

A

ECM Default

1. Speed control inhibited

PI1-047

Speed control switches internal steering wheel circuit: short circuit to ground

Steering wheel cassette reel: short circuit to ground

Cassette reel to ECM circuit: short circuit to ground

HEADWAY +/- switch(es) failure (stuck ON)

EMS OBD II

Ignition ON 10 seconds

2

N

None

PI1-123-124

CAN open circuit fault - A/CCM to ECM

CAN short circuit fault

A/CCM failure

ECM failure

TRANS JAG

Ignition ON. Move gear selector to N; leave in N for 5 seconds, then return to P.

N

N

None

GB2-10

TCM TO ECM P/N circuit: open circuit, short circuit to ground, short circuit to B+ voltage

TCM/Control valve failure

TRANS JAG

Ignition ON 10 seconds

N

A

TCM Default

1. Manual gear selection disabled
2. Sport mode disabled

GB2-2-6

CAN open circuit fault - TCM to J Gate Module

CAN short circuit fault

J Gate Module failure

TRANS OBD II

Drive vehicle for 1 hour while continually performing hard acceleration starts/stops.

N

A

TCM Default

1. Mechanical limp home mode

Transmission fluid level low

Transmission fluid cooler circuit: obstructed, leaking

Transmission fluid cooler fins blocked by debris

Transmission mechanical failure

TRANS OBD II

Ignition ON 10 seconds

2

A

TCM Default

1. Mechanical limp home mode

GB2-9

Ignition switched power supply fuse failure

Ignition switched power supply circuit: short circuit to ground, open circuit

TRANS OBD II

Ignition ON 10 seconds

2

A

TCM Default

1. Mechanical limp home mode

GB2-2-6

CAN open circuit or short circuit fault

TCM/Control valve failure

TRANS OBD II

Ignition ON 10 seconds

2

A

TCM Default

1. Mechanical limp home mode

GB2-2-6

CAN open circuit fault - TCM to ECM

CAN short circuit fault

ECM failure

TCM/Control valve failure

TRANS JAG

Ignition ON 10 seconds

N

N

None

GB2-2-6

CAN open circuit fault - TCM to IC

CAN short circuit fault

IC failure

TCM/Control valve failure

TRANS JAG

Ignition ON 10 seconds

N

N

TCM Default

1. Substitute transmission output speed for DSC vehicle speed

GB2-2-6

CAN open circuit fault - TCM to DSCCM

CAN short circuit fault

DSCCM failure

TCM/Control valve failure