CYLINDER NUMBERING
Engine cylinder numbering is as follows
Scheme 117
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. Refer to COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE .
Upstream (Universal) oxygen sensors
- Engine OFF; cooling fans inoperative > 20 seconds.
- Start engine and bring to normal operating temperature > 82 °C (180 °F).
- Drive the vehicle between 3000 - 4000 rpm 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.
- Repeat step 3.
- Idle engine for 11 minutes.
Downstream oxygen sensors
- Start engine and bring to normal operating temperature > 82 °C (180 °F).
- Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 10 minutes.
- Drive the vehicle above 3000 rpm in 4th gear at a steady speed. Lift foot completely off accelerator and coast for 30 seconds.
Oxygen sensor heaters
- Start engine and bring to normal operating temperature > 82 °C (180 °F).
- Idle engine for 3 minutes.
ADAPTIVE FUEL MONITOR DRIVE CYCLE
- Start engine and bring to normal operating temperature > 82 °C (180 °F).
- Idle for a minimum of 10 minutes.
MISFIRE MONITOR DRIVE CYCLE
- Record flagged DTC (s) and accompanying WDS DTC Monitor freeze frame(s) data.
- Fuel level > 25%.
- Start engine and bring to normal operating temperature > 82 °C (180 °F).
- Drive vehicle to the recorded freeze frame conditions (from step 1).
- Repeat several times.
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
- Start engine and bring to normal operating temperature > 82 °C (180 °F).
- Drive vehicle steadily between 1700 - 2500 rpm for 5 minutes.
EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE
- Ensure that fuel filler cap is fully closed (minimum three clicks).
- Fuel level > 30% and < 85%.
- Using WDS, perform ECM DTC Clear (even if no DTCs are flagged).
- Drive vehicle for a minimum of 2 minutes, and until engine is at normal operating temperature.
- 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.
- 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.
- 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.
- (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.
- (0.020 inch EVAP Test) Continue driving vehicle as explained in Step 8 for an additional 10 minutes.
- 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.
- 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
- 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 .
- Using WDS, check for and clear flagged DTCs.
COMPREHENSIVE COMPONENT MONITOR ENGINE MANAGEMENT DRIVE CYCLE
To avoid unnecessary complexity, a single comprehensive engine management drive cycle has not developed for X-TYPE. Refer to the individual DTC for specific drive cycle/monitoring conditions.
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
The Comprehensive Component Monitor transmission drive cycle will "check" all transmission system components.
- Engine and transmission at normal operating temperature. Ignition OFF
- With gear selector in P and the ignition ON. Check gearshift interlock by attempting to move selector without pressing the brake pedal. Verify P state illumination.
- Press and hold the brake pedal. Move the gear selector to R. Verify R state illumination.
- Set the parking brake. Press and hold the brake pedal. Attempt to start the engine. The engine should not start.
- Move the gear selector to N. Verify N state illumination. Start the engine.
- With the hand brake set and the brake pedal pressed, move the gear selector to the remaining positions in the J Gate (D, 4, 3, 2) for five (5) seconds each. Verify the state illumination in each position.
- Move the gear selector back to 4. Verify 4 state illumination.
- Move the gear selector to D. Verify D state illumination.
- Move the gear selector to N. Verify N state illumination.
- Select R, release the brakes and drive the vehicle in Reverse for a short distance.
- Stop the vehicle.
- Select 2 and drive the vehicle up to 65 km/h (40 mph). Hold 65 km/h (40 mph) for a minimum of five (5) seconds.
- Select 3 and hold 65 km/h (40 mph) for a minimum of five (5) seconds.
- Select 4 and hold 65 km/h (40 mph) for a minimum of five (5) seconds.
- Select D and accelerate to a minimum speed of 80 km/h (50 mph). Hold 80 - 129 km/h (50 - 80 mph) for a minimum of 1.7 kilometers (1 mile).
- Stop the vehicle; do not switch OFF the engine.
- Use WDS Datalogger "TOTAL NUMBER OF DTC SET" to ensure that transmission DTC monitoring is complete.
POWERTRAIN CONTROL ACRONYMS
A/C: Air conditioning
APP Sensor: Accelerator Pedal Position Sensor
B+: Battery Voltage
Bank 1: RH Engine cylinder bank (cylinders 1, 3, 5) (A Bank)
Bank 2: LH Engine cylinder bank (cylinders 2, 4, 6) (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
ECM: Engine Control Module
ECT Sensor: Engine Coolant Temperature Sensor
EFT Sensor: Engine Fuel Temperature Sensor
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
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
TCC: Torque converter clutch
TCM: Transmission Control Module
TFT Sensor: Transmission Fluid Temperature Sensor
TP Sensor: Throttle Position Sensor
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
- Bank 1 VVT hold current set at a constant value of 450 mA
CM PIN
EN16-109
POSSIBLE CAUSES
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
- Bank 2 VVT hold current set at a constant value of 450 mA
EN16 -110
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 - page 4
(Oxygen sensor heaters)
2
N
ECM Default
- Bank 1 closed loop fuel metering and adaptive fuel metering inhibited
- Canister purge inhibited
- Bank 1 upstream HO2S heater control circuit switched off
EN16-001-002-029-030
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 (EN16-029, EN16-030)
HO2 Sensor 1/1 heater failure
EMS OBD II
HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE
(Oxygen sensor heaters)
2
N
ECM Default
- Bank 1 closed loop fuel metering and adaptive fuel metering inhibited
- Canister purge inhibited
- Bank 1 upstream HO2S heater control circuit switched off
EN16-001-002-029-030
HO2 Sensor 1/1 heater control circuit: short circuit to ground
HO2 Sensor 1/1 heater ground circuit(s) fault (EN16-029, EN16-030)
HO2 Sensor 1/1 heater failure
EMS OBD II
HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE
(Oxygen sensor heaters)
2
N
None
EN16-092
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
EN16-092
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
- Bank 2 closed loop fuel metering and adaptive fuel metering inhibited
- Canister purge inhibited
- Bank 2 upstream HO2S heater control circuit switched off
EN16-055-056-081-082
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 (EN16-081, EN16-082)
HO2 Sensor 2/1 heater failure
EMS OBD II
HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE
(Oxygen sensor heaters)
2
N
ECM Default
- Bank 2 closed loop fuel metering and adaptive fuel metering inhibited
- Canister purge inhibited
- Bank 2 upstream HO2S heater control circuit switched off
EN16-055-056-081-082
HO2 Sensor 2/1 heater control circuit: short circuit to ground
HO2 Sensor 2/1 heater ground circuit(s) fault (EN16-081, EN16-082)
HO2 Sensor 2/1 heater failure
EMS OBD II
HEATED OXYGEN SENSORS MONITOR DRIVE CYCLE
(Oxygen sensor heaters)
2
N
None
EN16-93
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
EN16-93
HO2 Sensor 2/2 heater control circuit: open circuit; high resistance
HO2 Sensor 2/2 heater 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; hold the engine speed constant for 40 seconds while maintaining a steady throttle
CK ENG
2
A
ECM Default
- Default air mass used
- Adaptive fuel metering inhibited
- Catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-044
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
EMS OBD II
Ignition ON 10 seconds
2
A
ECM Default
- Default air mass used
- Adaptive fuel metering inhibited
- Catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-044
Blocked air cleaner
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
- Default air mass used
- Adaptive fuel metering inhibited
- Catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-044-045-046
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; hold the engine speed constant for 40 seconds while maintaining a steady throttle
2
N
ECM Default
- Default value of 1.013 BAR (29.92 in hg) used
EN16-127
MAP Sensor to ECM circuit(s) fault
MAP 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 twice more
2
N
ECM Default
- 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
- 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
- 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
- Default value of 25 °C (77 °F) used
EN16-071
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
- Default value of 25 °C (77 °F) used
EN16-071
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
- Default value of 25 °C (77 °F) used
EN16-071
IAT Sensor to ECM wiring: short circuit to ground
IAT Sensor failure
EMS OBD II
Engine coolant temperature and ambient temperature within 10 °C (50 °F)
Drive the vehicle steadily in 4th or 5th gear above 1700 rpm for 5 minutes
Idle engine until engine coolant temperature reaches 80 °C (176 °F)
| CAUTION | Overheating is possible if the ECT sensor is faulty and cooling fans do not operate |
2
A
ECM Default
- EOT value substituted (no greater than 95 °C (203 °F)
- Closed loop fuel metering inhibited
- Adaptive fuel metering inhibited
- Catalyst warm-up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-070
Low coolant level
Contaminated coolant
Engine thermostat failure
ECT Sensor to ECM sensing circuit: high resistance when hot, intermittent high resistance
ECT Sensor failure
EMS OBD II
Ignition ON 10 seconds
2
A
ECM Default
- EOT value substituted (no greater than 95 °C (203 °F)
- Closed loop fuel metering inhibited
- Adaptive fuel metering inhibited
- Catalyst warm-up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-070
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
- EOT value substituted (no greater than 95 °C (203 °F)
- Closed loop fuel metering inhibited
- Adaptive fuel metering inhibited
- Catalyst warm-up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-070
Engine overheat condition
ECT Sensor to ECM wiring: short circuit to ground
ECT Sensor failure
EMS OBD II
Battery voltage > 10 v
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-075-076
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 v
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-075
TP Sensor to ECM sensing circuit (TP1): open circuit, high resistance
TP Sensor failure
EMS OBD II
Battery voltage > 10 v
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-075
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 (50 °F)
Drive the vehicle steadily in 4th or 5th gear above 1700 rpm for 5 minutes
Idle engine until engine coolant temperature reaches 80 °C (176 °F)
| CAUTION | Overheating is possible if the ECT sensor is faulty and cooling fans do not operate |
2
A
ECM Default
- EOT value substituted (no greater than 95 °C (203 °F)
- Closed loop fuel metering inhibited
- Adaptive fuel metering inhibited
- Catalyst warm-up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-070
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 > 82 °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
EN16-083-084
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
EN16-083-084
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
- Bank 1 closed loop fuel metering inhibited
- Canister purge inhibited
EN16-083-084
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
EN16-128
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
EN16-128
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
EN16-128
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
EN16-107-108
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
EN16-107-108
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
- Bank 1 closed loop fuel metering inhibited
- Canister purge inhibited
EN16-107-108
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
EN16-129
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
EN16-129
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
EN16-129
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
A
ECM Default
- Bank 1 catalyst warm-up ignition retard inhibited
- Bank 1 closed loop fuel metering inhibited
- Canister purge inhibited
- Maximum engine speed reduced
Engine misfire
Air intake leak between MAF Sensor and throttle
Fuel filter/system restriction
Fuel injector restriction
Fuel pressure sensor failure (low fuel pressure)
Low fuel pump output
HO2 Sensor(s) (1/1, 1/2) harness wiring condition fault
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
A
ECM Default
- Bank 1 catalyst warm-up ignition retard inhibited
- Bank 1 closed loop fuel metering inhibited
- Canister purge inhibited
- Maximum engine speed reduced
Restricted air filter
Leaking fuel injector(s)
Fuel pressure sensor failure (high fuel pressure)
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
A
ECM Default
- Bank 2 catalyst warm-up ignition retard inhibited
- Bank 2 closed loop fuel metering inhibited
- Canister purge inhibited
- Maximum engine speed reduced
Engine misfire
Air intake leak between MAF Sensor and throttle
Fuel filter/system restriction
Fuel injector restriction
Fuel pressure sensor failure (low fuel pressure)
Low fuel pump output
HO2 Sensor(s) (2/1, 2/2) harness wiring condition fault
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
A
ECM Default
- Bank 2 catalyst warm-up ignition retard inhibited
- Bank 2 closed loop fuel metering inhibited
- Canister purge inhibited
- Maximum engine speed reduced
Restricted air filter
Leaking fuel injector(s)
Fuel pressure sensor failure (high fuel pressure)
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
- Default value of 25 °C (77 °F) used
EN16-050
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
- Default value of 25 °C (77 °F) used
EN16-050
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
- Default value of 25 °C (77 °F) used
EN16-050
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
- Default value of 3.80 BAR (55.11 psi) used
- Fuel pump feedback control inhibited
EN16-073
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
- Default value of 3.80 BAR (55.11 psi) used
Fuel pump feedback control inhibited
EN16-073
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
- Default value of 3.80 BAR (55.11 psi) used
Fuel pump feedback control inhibited
EN16-073
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
- ECT substituted
EN16-078
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
- ECT substituted
EN16-078
EOT Sensor to ECM sensing circuit: short circuit to ground
EOT Sensor failure
EMS OBD II
Ignition ON 10 seconds
2
N
ECM Default
- ECT substituted
EN16-078
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 v
Idle for 2 minutes
2
A
ECM Default
- Bank 1 closed loop fuel metering inhibited
- Bank 1 adaptive fuel metering inhibited
- Bank 1 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-115
Injector disconnected
Injector harness wiring: open circuit, short circuit
Injector failure
EMS OBD II
Start engine
Battery voltage > 12 v
Idle for 2 minutes
2
A
ECM Default
- Bank 2 closed loop fuel metering inhibited
- Bank 2 adaptive fuel metering inhibited
- Bank 2 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-120
Injector disconnected
Injector harness wiring: open circuit, short circuit
Injector failure
EMS OBD II
Start engine
Battery voltage > 12 v
Idle for 2 minutes
2
A
ECM Default
- Bank 1 closed loop fuel metering inhibited
- Bank 1 adaptive fuel metering inhibited
- Bank 1 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-114
Injector disconnected
Injector harness wiring: open circuit, short circuit
Injector failure
EMS OBD II
Start engine
Battery voltage > 12 v
Idle for 2 minutes
2
A
ECM Default
- Bank 2 closed loop fuel metering inhibited
- Bank 2 adaptive fuel metering inhibited
- Bank 2 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-119
Injector disconnected
Injector harness wiring: open circuit, short circuit
Injector failure
EMS OBD II
Start engine.
Battery voltage > 12 v
Idle for 2 minutes.
2
A
ECM Default
- Bank 1 closed loop fuel metering inhibited
- Bank 1 adaptive fuel metering inhibited
- Bank 1 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-113
Injector disconnected
Injector harness wiring: open circuit, short circuit
Injector failure
EMS OBD II
Start engine.
Battery voltage > 12 v
Idle for 2 minutes.
2
A
ECM Default
- Bank 2 closed loop fuel metering inhibited
- Bank 2 adaptive fuel metering inhibited
- Bank 2 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-118
Injector disconnected
Injector harness wiring: open circuit, short circuit
Injector failure
EMS OBD II
Battery voltage > 10 v
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-076
TP Sensor to ECM sensing circuit (TP2): open circuit, high resistance
TP Sensor failure
EMS OBD II
Battery voltage > 10 v
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-076
TP Sensor to ECM sensing circuit (TP2): short circuit to high voltage
TP Sensor failure
EMS OBD II
Misfire monitor drive cycle - page 5
1 or 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
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
EMS OBD II
Start engine
Battery voltage > 12 v
Idle for 2 minutes
2
A
ECM Default
- Maximum ignition retard
- Maximum engine speed reduced
EN16-098
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 v
Idle for 2 minutes
2
A
ECM Default
- Maximum ignition retard
- Maximum engine speed reduced
EN16-098
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; momentarily race the engine; stop engine
Repeat two additional times
Start engine; idle 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
Note. If CKP Sensor fault exists and engine will not start, battery voltage must drop below 10.5 V during cranking for DTC to be flagged. (Crank period - 30 seconds.) If CKP Sensor fault exists, engine will start on the second crank as the ECM will default to CMP signals for synchronization.
2
A
ECM Default
- Maximum engine speed reduced
EN16-036-037
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 two additional times
Start engine; idle 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
A
ECM Default
- Maximum engine speed reduced
EN16-036-037
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 two additional times
Start engine idle 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
None
EN16-094-095
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 two additional times
Start engine; idle 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
None
EN16-094-095
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
Battery voltage > 12 v
Idle for 2 minutes
2
A
ECM Default
- Bank 1 closed loop fuel metering inhibited
- Bank 1 adaptive fuel metering inhibited
- Bank 1 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
- Fuel injection cut off (cylinder 1)
EN16-087
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 v
Idle for 2 minutes
2
A
ECM Default
- Bank 2 closed loop fuel metering inhibited
- Bank 2 adaptive fuel metering inhibited
- Bank 2 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
- Fuel injection cut off (cylinder 2)
EN16-061
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 v
Idle for 2 minutes
2
A
ECM Default
- Bank 1 closed loop fuel metering inhibited
- Bank 1 adaptive fuel metering inhibited
- Bank 1 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
- Fuel injection cut off (cylinder 3)
EN16-088
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 v
Idle for 2 minutes
2
A
ECM Default
- Bank 2 closed loop fuel metering inhibited
- Bank 2 adaptive fuel metering inhibited
- Bank 2 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
- Fuel injection cut off (cylinder 4)
EN16-062
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 v
Idle for 2 minutes
2
A
ECM Default
- Bank 1 closed loop fuel metering inhibited
- Bank 1 adaptive fuel metering inhibited
- Bank 1 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
- Fuel injection cut off (cylinder 5)
EN16-089
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 v
Idle for 2 minutes
2
A
ECM Default
- Bank 2 closed loop fuel metering inhibited
- Bank 2 adaptive fuel metering inhibited
- Bank 2 catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
- Fuel injection cut off (cylinder 6)
EN16-063
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
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
2
N
ECM Default
- Canister purge inhibited
- 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
2
N
ECM Default
- Canister purge inhibited
- Adaptive fuel metering inhibited
EN16-066
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
2
N
ECM Default
- Canister purge inhibited
- Adaptive fuel metering inhibited
EN16-066
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
2
N
ECM Default
- Canister purge inhibited
- Adaptive fuel metering inhibited
EN16-066
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
2
N
ECM Default
- Canister purge inhibited
- Adaptive fuel metering inhibited
EN16-067
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
- Canister purge inhibited
- Adaptive fuel metering inhibited
EN16-067
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
- Canister purge inhibited
- Adaptive fuel metering inhibited
EN16-067
EVAP canister close valve to ECM drive circuit: short to ground
EVAP canister close valve failure
EMS OBD II
EVAPORATIVE SYSTEM MONITOR DRIVE CYCLE
2
N
None
EN16-104
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
EN16-104
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
EN16-104
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
2
N
ECM Default
- Canister purge inhibited
- 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
2
N
ECM Default
- Canister purge inhibited
- 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 instrument pack circuit(s): intermittent short circuit, open circuit, high resistance
Fuel level sensor failure
Instrument pack fault (incorrect fuel level data)
EMS JAG
Start and run engine > 2000 rpm for 2 minutes
(Ensures voltage stays above 14 V for the required time)
N
N
ECM Default
- With ignition ON, fan operates at maximum speed
EN16-051
ECM to radiator cooling fan module drive circuit: short circuit, open circuit, high resistance
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 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
EN16-022
ECM battery power supply open circuit, high resistance
EMS JAG
Ignition ON 45 seconds
N
A
ECM Default
- Speed control inhibited
- Maximum engine speed reduced
EN16-047
Cruise 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
ON/OFF switch failure (stuck ON)
EMS JAG
Ignition ON 45 seconds
N
A
ECM Default
- Speed control inhibited
- Maximum engine speed reduced
EN16-047
Cruise 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
- Speed control inhibited
- Maximum engine speed reduced
EN16-047
Cruise 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
- Speed control inhibited
- Maximum engine speed reduced
EN16-047
Cruise 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 45 seconds
N
A
ECM Default
- Speed control inhibited
- Maximum engine speed reduced
EN16-047
Cruise 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 45 seconds
N
A
ECM Default
- Speed control inhibited
- Maximum engine speed reduced
EN16-047
Cruise 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
EMS OBD II
Ignition ON
Battery voltage > 12 v
Automatic - P for 5 seconds; manual - clutch fully pressed for 5 seconds
Start engine
2
N
None
EN16-041-006
Starter relay drive circuit: open circuit, high resistance
Starter relay failure
EMS OBD II
Ignition ON
Battery voltage > 12 v
Automatic - P for 5 seconds; manual - clutch fully pressed for 5 seconds
Start engine
2
N
None
EN16-041-006
Starter relay drive circuit: short circuit to high voltage
Starter relay failure
EMS OBD II
Start engine
Climate control system OFF
Idle for 10 seconds
2
N
None
EN16-034
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
EN16-034
A/C Compressor clutch relay drive circuit: short circuit to high voltage
A/C Compressor clutch relay failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- 4, 3, 2 Cannot be selected
- No J Gate illumination
- Reverse disengaged above 10 km/h (6 mph) (Poor shift quality)
JB131-007-008-025-026-027-030-009
J Gate - incorrect setting
Selector cable adjustment/installation incorrect
Range sensor incorrect installation/adjustment
Range sensor to TCM circuit(s): open circuit, short circuit to ground
TCM Ground circuit: open circuit, high resistance
Range sensor failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
None
(Poor shift quality)
JB131-039-020
Transmission to TCM temperature sensor circuit: open circuit, short circuit, high resistance
Transmission internal temperature sensor circuit (internal harness): open circuit, short circuit; high resistance
Sensor ground circuit fault
TFT Sensor failure
TRANS OBD II
Start and run engine - 10 seconds
2
A
None
(Poor shift quality)
JB131-024-020
Transmission to TCM turbine speed sensor circuit: open circuit, short circuit, high resistance
Transmission internal turbine speed sensor circuit: open circuit, short circuit, high resistance
Transmission to TCM turbine speed sensor circuit: shielding defective
Sensor ground circuit fault
Turbine speed sensor failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- ABS Wheel speed (CAN) substituted (Poor shift quality)
- If ABS Wheel speed message incorrect - fixed 4th gear
JB131-005-020
Transmission to TCM output speed sensor circuit: open circuit, short circuit, high resistance
Transmission internal output speed sensor circuit: open circuit, short circuit, high resistance
Transmission to TCM output speed sensor circuit: shielding defective
Sensor ground circuit fault
Output speed sensor failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- Fixed 4th gear
J Gate - incorrect setting
Transmission oil level low
Transmission mechanical failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- Fixed 4th gear
J Gate - incorrect setting
Transmission oil level low
Transmission mechanical failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- Fixed 4th gear
J Gate - incorrect setting
Transmission oil level low
Transmission mechanical failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- Fixed 4th gear
J Gate - incorrect setting
Transmission oil level low
Transmission mechanical failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- Fixed 4th gear
J Gate - incorrect setting
Transmission oil level low
Transmission mechanical failure
TRANS JAG
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
N
A
TCM Default
- Fixed 4th gear in D
(R range not effected)
J Gate - incorrect setting
Transmission oil level low
Transmission mechanical failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- No TCC control
J Gate - incorrect setting
Transmission oil level low
Transmission mechanical failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- If short circuit to B+ V - TCC permanently engaged
- If other cause - TCC inoperative
JB131-016-009
Transmission to TCM TCC solenoid circuit: open circuit, short circuit to B+ V, short circuit to ground
Transmission internal TCC solenoid circuit: open circuit, short circuit
TCM Ground circuit: open circuit, high resistance
TCC Solenoid failure
TRANS OBD II
Start and run engine - 10 seconds
2
A
TCM Default
- Fixed 4th gear
JB131-018-009
Transmission to TCM line pressure solenoid circuit: open circuit, short circuit
Transmission internal line pressure solenoid circuit: open circuit, short circuit
TCM Ground circuit: open circuit, high resistance
Line pressure solenoid failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- If short circuit to B+ V - fixed 2nd gear at low vehicle speed; fixed 5th gear at high vehicle speed
- If other cause - fixed 3rd gear at low vehicle speed; fixed 4th gear at high vehicle speed
JB131-015-009
Transmission to TCM shift solenoid A circuit: open circuit, short circuit to B+ V, short circuit to ground
Transmission internal shift solenoid A circuit: open circuit, short circuit
TCM Ground circuit: open circuit, high resistance
Shift solenoid A pressure solenoid failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- If short circuit to B+ V: fixed 3nd gear
- If other cause: fixed 4rd gear
JB131-014-009
Transmission to TCM shift solenoid B circuit: open circuit, short circuit to B+ V, short circuit to ground
Transmission internal shift solenoid B circuit: open circuit, short circuit
TCM Ground circuit: open circuit, high resistance
Shift solenoid B pressure solenoid failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- Fixed 4th gear
JB131-052-009
Transmission to TCM shift solenoid C circuit: open circuit, short circuit to B+ V, short circuit to ground
Transmission internal shift solenoid C circuit: open circuit, short circuit
TCM Ground circuit: open circuit, high resistance
Shift solenoid C pressure solenoid failure
TRANS OBD II
Start and run engine - 10 seconds
2
A
TCM Default
- Fixed 4th gear
JB131-003-009
Transmission to TCM 2/4 Brake pressure solenoid circuit: open circuit, short circuit
Transmission internal 2/4 Brake pressure solenoid circuit: open circuit, short circuit
TCM Ground circuit: open circuit, high resistance
2/4 Brake pressure solenoid failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
None
(Poor shift quality)
JB131-021-020
Transmission to TCM intermediate speed sensor circuit: open circuit, short circuit, high resistance
Transmission internal intermediate speed sensor circuit: open circuit, short circuit, high resistance
Transmission to TCM intermediate speed sensor circuit: shielding defective
Sensor ground circuit fault
Intermediate speed sensor failure
TRANS (ECM) JAG
Drive vehicle above 16 km/h (10 mph) for 15 seconds
N
N
None
EN16-026
Output speed sensor power supply circuit: open circuit, short circuit
Transmission to ECM output speed sensor circuits: open circuit, short circuit, high resistance
Output speed sensor failure
TRANS (ECM) ECM
Drive vehicle 60 - 100 km/h (37 - 62 mph); 1800 - 2500 rpm; engine load > 0.40 g/rpm
2
N
None
EN16-033
Clutch cancel switch supply circuit: open circuit
Clutch cancel switch to ECM circuit: open circuit, high resistance
Clutch cancel switch failure
TRANS (ECM) ECM
Drive vehicle; shift from 1st to 2nd; stop vehicle
Repeat 5 times
2
N
None
EN16-033
Clutch cancel switch to ECM circuit: short circuit to high voltage
Clutch cancel switch failure
TRANS (ECM) JAG
Drive vehicle; shift from 1st to 2nd; stop vehicle Repeat 5 times
N
N
None
EN16-031
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); 1800 - 2500 rpm; engine load > 0.40 g/rpm
N
N
None
EN16-031
Clutch pedal safety switch to ECM circuit: short circuit to high voltage
Clutch pedal safety switch failure
TRANS (ECM) JAG
Ignition ON 10 seconds
2
A
ECM Default
- Speed control inhibited
- Maximum throttle opening for N range inhibited
- Throttle opening limited to 30%
- Maximum engine speed reduced
EN16-123-124
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
- Default air mass used
- Adaptive fuel metering inhibited
- Catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
EN16-045-046
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
- Default value of 1.013 BAR (29.92 in hg) used
EN16-127
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
- Default value of 1.013 BAR (29.92 in hg) used
EN16-127
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 v
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
- APP angle default value used
- Speed control inhibited
- APP adaptions (wear, variance) inhibited
EN16-103
APP Sensor to ECM sense circuit (APP1): open circuit, high resistance
APP Sensor sensor supply circuit: open circuit, high resistance
APP Sensor failure
EMS OBD II
Battery voltage > 10 v
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
- APP angle default value used
- Speed control inhibited
- APP adaptions (wear, variance) inhibited
EN16-103-102
APP Sensor sensor to ECM sense circuit(s) (APP1 or APP2): short circuit to B+ voltage
APP Sensor sensor ground circuit(s): open circuit
APP Sensor failure
EMS OBD II
Battery voltage > 12 v
Switch OFF all electrical consumers
Start engine; idle for 16 minutes with all electrical consumers switched OFF
2
C
None
EN16-053
Generator to ECM "CHARGE" circuit: open circuit, high resistance
Generator regulator failure
EMS OBD II
Battery voltage > 10 v
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
- APP angle default value used
- Speed control inhibited
- APP adaptions (wear, variance) inhibited
EN16-102
APP Sensor to ECM sense circuit (APP2): open circuit, high resistance
APP Sensor sensor supply circuit (to splice): open circuit, high resistance
APP Sensor failure
EMS OBD II
Battery voltage > 10 v
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
- APP angle default value used
- Speed control inhibited
- APP adaptions (wear, variance) inhibited
EN16-102-103
APP Sensor sensor to ECM sense circuit(s) (APP2 or APP1): short circuit to B+ voltage
APP Sensor sensor ground circuit(s) (to splice): open circuit
APP Sensor failure
EMS OBD II
Battery voltage > 10 v
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
Throttle adaptions not performed after battery disconnect
TP Sensor disconnected
TP Sensor to ECM sense circuits: open circuit, high resistance
Throttle motor relay failure
Throttle motor relay to ECM circuit fault
Throttle motor relay power supply open circuit
ECM ground circuit fault (relay coil drive)
Throttle motor to ECM drive circuits: open circuit, short circuit, high resistance
Throttle motor failure
Throttle body failure
EMS OBD II
Battery voltage > 10 v
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
Throttle motor disconnected
Throttle motor to ECM drive circuits: short circuit or open circuit
Throttle motor failure
EMS OBD II
Start engine
Battery voltage > 12 v
Idle for 2 minutes
2
N
ECM Default
- Fuel pump feedback control inhibited
EN16-025-027
ECM to fuel pump control module control and/or feedback circuits: open circuit, short circuit, high resistance
Fuel pump control module failure
EMS OBD II
Start engine
Battery voltage > 12 v
Idle for 2 minutes
2
N
ECM Default
- Fuel pump feedback control inhibited
EN16-025-027
ECM to fuel pump control module control and/or feedback circuits: open circuit, short circuit, high resistance
Fuel pump control module failure
EMS OBD II
(APP Sensor, TP Sensor, IP Sensor, MAP Sensor, FTP Sensor)
Ignition ON 10 seconds
2
N
None
EN16-012-013
ECM to sensors sensor supply voltage circuit(s): short circuit to ground, short circuit to high voltage, open circuit, high resistance
APP Sensor, TP Sensor, IP Sensor, MAP Sensor, FTP Sensor failure(s)
EMS OBD II
Ignition ON 10 seconds
2
R
ECM Default
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-012-013
ECM to sensors sensor supply voltage circuit(s): short circuit to ground
APP Sensor, TP Sensor, IP Sensor, MAP Sensor, FTP Sensor failure(s)
EMS OBD II
Ignition ON 10 seconds
2
R
ECM Default
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-012-013
ECM to sensors supply voltage circuit(s): open circuit, high resistance, short circuit to high voltage
APP Sensor, TP Sensor, IP Sensor, MAP Sensor, FTP Sensor failure(s)
EMS OBD II
Ignition ON 10 seconds
2
N
None
EN16-019-020
ECM to sensors sensor ground circuit(s): open circuit, high resistance
APP Sensor, TP Sensor, IP Sensor, MAP Sensor, FTP Sensor failure(s)
EMS OBD II
Battery voltage > 12 v
Switch OFF all electrical consumers
Start engine; idle for 16 minutes with all electrical consumers switched OFF
2
C
ECM Default
- Cooling fan speed increased
EN16-053
Generator to ECM "CHARGE" circuit: short circuit to high voltage
Generator regulator failure
Generator failure
EMS OBD II
Start engine
Starter should stop when the key is released from position III (CRANK)
2
N
None
EN16-006
Starter relay coil to ECM/ignition switch circuit: open circuit
EMS OBD II
Drive vehicle > 32 km/h (20 mph) between 2000 - 2500 rpm for 10 seconds; stop vehicle
Repeat 10 times
2
N
None
EN16-006
Starter relay coil to ECM/ignition switch 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
- Limp home unavailable
- Vehicle speed limited
- Speed control inhibited
- Possible engine shut down
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-052
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
- Limp home unavailable
- Vehicle speed limited
- Speed control inhibited
- Possible engine shut down
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
- 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
- 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 v
Idle for 2 minutes
2
N
ECM Default
- Fuel pump feedback control inhibited
EN16-025-027
ECM to fuel pump control module control and/or feedback circuits: open circuit, short circuit, high resistance
Fuel pump control module failure
EMS OBD II
Start engine; momentarily race the engine; stop engine
Repeat two additional times
Start engine; idle 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
None
EN16-068-069
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 two additional times
Start engine; idle 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
None
EN16-068-069
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 v
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
- APP angle default value used
- Speed control inhibited
- APP adaptions (wear, variance) inhibited
EN16-102-103
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 v
Idle for 2 minutes
2
A
ECM Default
- Closed loop fuel metering inhibited
- Adaptive fuel metering inhibited
- Catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
- Fuel injection cut off (cylinders 1, 3, 5)
EN16-131
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 v
Idle for 2 minutes
2
A
ECM Default
- Closed loop fuel metering inhibited
- Adaptive fuel metering inhibited
- Catalyst warm up ignition retard inhibited
- Canister purge inhibited
- Maximum engine speed reduced
- Fuel injection cut off (cylinders 2, 4, 6
EN16-132
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
- Bank 1 VVT hold current set at a constant valve of 450 mA
EN16-109
VVT solenoid valve 1 to ECM PWM drive circuit fault
VVT solenoid valve 1 ground circuit fault
VVT solenoid 1 failure
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
- Bank 2 VVT hold current set at a constant valve of 450 mA
EN16-110
VVT solenoid valve 2 to ECM PWM drive circuit fault
VVT solenoid valve 2 ground circuit fault
VVT solenoid 2 failure
VVT 2 oil flow fault
VVT/camshaft mechanical failure - bank 2
EMS OBD II
Drive vehicle > 24 km/h (15 mph) between 1500 - 4000 rpm for 30 seconds
2
A
ECM Default
- Speed control inhibited
- Maximum engine speed reduced
EN16-031
Gear selector cable setting incorrect
Transmission range sensor to ECM circuit: open circuit, high resistance
Transmission range sensor failure
D - 4 Switch to TCM circuit: open circuit, high resistance
D - 4 Switch failure
EMS OBD II
Start engine in P
Start engine in N
Check that engine does not start in R, D, 4, 3, 2
| CAUTION | If the P/N switch is faulty, the engine may start while in gear |
2
A
ECM Default
- Speed control inhibited
- Maximum throttle opening for N range inhibited
- Maximum engine speed reduced
EN16-031
Gear selector cable setting incorrect
Transmission range sensor to ECM circuit: open circuit or high resistance
Transmission range sensor failure
EMS OBD II
Battery voltage > 12 v
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
- IMT 2 Inhibited
EN16-039
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
EMS OBD II
Battery voltage > 12 v
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
- IMT 1 Inhibited
EN16-038
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 5 times
Momentarily press brake pedal and release; press again and hold > 30 seconds; release brake pedal
Repeat 5 times
N
A
ECM Default
- Speed control inhibited
- Maximum engine speed reduced
EN16-008-009
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
TRANS JAG
Ignition ON - 5 seconds
N
A
None
(Poor shift quality)
JB131-012-013
TP Sensor fault (TP Sensor DTC flagged - P0121, P0122, P0123, P0222, P0223)
ECM CAN message error
EMS JAG
- Inertia switch activated
- Throttle Limp Home mode
- Engine starts and stumbles
- Engine fail to start
- Engine stall
N
N
None
EN16-010
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 - 5 seconds
1
A
TCM Default
- Fixed 4th gear
JB131-012-013-033-034
Configure ECM and TCM using WDS
TRANS OBD II
Ignition ON - 5 seconds
1
A
None
JB131-009
Battery disconnected while the ignition is switched ON
B+ power supply circuit: open circuit
TCM 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
1
2
N
None
Early production vehicles
EN16-040
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- 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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
ECM Failure
EMS OBD II
Battery voltage > 12 v
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
EN16-065
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- Idle speed adaption inhibited
EN16-052
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 v
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 > 1500 rpm for one minute in N
2
C
None
EN16-079
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
- Throttle motor and throttle motor relay disabled
- Throttle valve opening set to default value
- Idle speed controlled by fuel injection intervention
- 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
- Throttle opening limited to 30%
- Vehicle speed limited
- Speed control limited
ECM Failure
EMS OBD II
Ignition ON 10 seconds
2
A
ECM Default
- Speed control inhibited
- Maximum throttle opening for N range inhibited
- Throttle opening limited to 30%
- Maximum engine speed reduced
EN16-123-124
CAN open circuit fault - ABS/TCCM (DSCCM) to ECM
CAN short circuit fault
ABS/TCCM (DSCCM) failure
ECM failure
EMS OBD II
Ignition ON 10 seconds
2
N
None
EN16-123-124
CAN open circuit fault - INST to ECM
CAN short circuit fault
INST failure
ECM failure
Ignition ON 10 seconds
2
A
ECM Default
EMS OBD II
- Speed control inhibited
- Maximum throttle opening for N range inhibited
- Throttle opening limited to 30%
- Maximum engine speed reduced
EN16-123-124
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
- Speed control inhibited
- Maximum throttle opening for N range inhibited
- Throttle opening limited to 30%
- Maximum engine speed reduced
EN16-123-124
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
- 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
ECM Failure
EMS OBD II
Drive vehicle for 10 minutes
2
N
ECM Default
- 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
ECM Failure
EMS OBD II
Start engine
Battery voltage > 12 v.
Idle for 2 minutes
2
A
ECM Default
- Maximum ignition retard
- Maximum engine speed reduced
ECM Failure
EMS OBD II
Ignition ON 10 seconds
2
A
ECM Default
- Maximum engine speed reduced
EN16-075
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
- Throttle opening limited to 30%
- Vehicle speed limited
- Speed control inhibited
EN16-052
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
- Throttle opening limited to 30%
- Vehicle speed limited
- Speed control inhibited
EN16-052
Throttle motor relay failure
Throttle motor relay coil to ECM drive circuit: short circuit to B+ voltage
EMS OBD II
Ignition ON 10 seconds
2
N
None
EN16-123-124
CAN open circuit fault - A/CCM to ECM
CAN short circuit fault
A/CCM failure
ECM failure
TRANS OBD II
Ignition ON - 5 seconds
2
A
TCM Default
- Fixed 4th gear
JB131-017-009
TCM to transmission sensor ground circuit: open circuit
TCM ground circuit
open circuit, high resistance
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- Fixed 4th gear
JB131-053-009
Transmission to TCM low clutch timing solenoid circuit: open circuit, short circuit
Transmission internal low clutch timing solenoid circuit: open circuit, short circuit
TCM ground circuit: open circuit, high resistance
Low clutch timing solenoid failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- If short circuit to B+ V: no engine braking in D, 4, 3, 2
- If other cause: poor shift quality
JB131-010-009
Transmission to TCM reduction timing solenoid circuit: open circuit, short circuit to B+ V, short circuit to ground
Transmission internal reduction timing solenoid circuit: open circuit, short circuit
TCM ground circuit: open circuit, high resistance
Reduction timing solenoid failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
TCM Default
- Fixed 4th gear
JB131-004-009
Transmission to TCM 2/4 brake timing solenoid circuit: open circuit, short circuit
Transmission internal 2/4 brake timing solenoid circuit: open circuit, short circuit
TCM ground circuit: open circuit, high resistance
2/4 Brake timing solenoid failure
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
None
(D poor shift quality)
JB131-012-013
ECM CAN message error
TRANS OBD II
COMPREHENSIVE COMPONENT MONITOR TRANSMISSION DRIVE CYCLE
2
A
None
(D - 4 Switch signal ignored)
JB131-045-009
J Gate - incorrect setting
Selector cable adjustment/installation incorrect
Range sensor incorrect installation/adjustment
D - 4 Switch to TCM circuit: short circuit, open circuit, high resistance
J-Gate ground circuit: open circuit, high resistance
TCM Ground circuit: open circuit, high resistance
TRANS OBD II
Ignition ON - 5 seconds
2
A
TCM Default
- Fixed 4th gear
JB131-036-054-009
TCM Power supply circuit: open circuit (fuse)
TCM Relay failure
TCM Relay ground circuit: open circuit, high resistance
TCM Relay supply circuits: open circuit (fuse)
TCM Ground circuit: open circuit, high resistance
TRANS OBD II
Ignition ON - 5 seconds
2
A
TCM Default
- Fixed 4th gear
JB131-012-013
CAN open circuit fault
CAN short circuit fault
TCM failure
TRANS OBD II
Ignition ON - 5 seconds
2
A
TCM Default
- Fixed 4th gear
JB131-012-013
CAN open circuit fault - TCM to ECM
CAN short circuit fault
ECM failure
TCM failure
TRANS OBD II
Ignition ON - 5 seconds
2
A
None
JB131-012-013
CAN open circuit fault - TCM to ABS/TC (DSCCM)
CAN short circuit fault
ABS/TC (DSCCM) failure
TCM failure