Inspection and Verification
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Electrical Engine oil level Cooling system Fuel charging system Fuel contamination Throttle body Air intake system Exhaust system Vehicle battery (fully charged and correctly connected) Fuses. (9, 31, 32, 37) Wiring harness Electrical connector(s) Sensor(s) Engine control module (ECM)
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, check for Diagnostic Trouble Codes (DTCs) and refer to «DTC Index»(ref-311888-S02057238762009040700000) .
DTC Index
| CAUTION | When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number 3548-1358-00 |
Note. If the control module/component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual (section B1.2), or determine if any prior approval program is in operation, prior to the installation of a new module/component.
Note. When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal places and with a current calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.
Note. Check and rectify basic faults before beginning diagnostic routines that involve pinpoint tests.
Note. Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
Note. If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.
| DTC | Description | Possible Cause | Action |
|---|---|---|---|
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) | Bank 1 upstream HO2 sensor (heater) failure bank 1 downstream HO2 sensor (heater) failure bank 1 upstream HO2 sensor (sensing) failure bank 1 downstream HO2 sensor (sensing) failure upstream sensor to ECM wiring fault downstream sensor to ECM wiring fault Exhaust system fault Catalyst conversion failure | Refer to Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR . Visually inspect catalytic converters. |
| P0430 | Catalyst System Efficiency Below Threshold (Bank 2) | Bank 2 upstream HO2 sensor (heater) failure bank 2 downstream HO2 sensor (heater) failure bank 2 downstream HO2 sensor (sensing) failure upstream sensor to ECM wiring fault downstream sensor to ECM wiring fault Exhaust system fault Catalyst conversion failure | Refer to Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR . Visually inspect catalytic converters. |
| P0300 | Random Misfire Detected | Ignition system components Ignition system wiring harness | Check all ignition coils for secure fixing and check wiring harness connector for damage and correct engagement. Visually confirm condition and grade of all sparking plugs. Check the crank position sensor is correctly mounted and secure. Refer to the appropriate circuit diagram, check the crank position sensor cable screening is intact between the sensor and the engine control module and connected to ground. Check the security and connection of the ignition relay located in the front power distribution box. Check ignition relay ground line for intermittent open circuits between front power distribution box and its ground point. Check the wiring harness between the ignition relay to the harness splice where the feeds separate to each ignition module for shorts to ground or intermittent open circuits. Refer to the appropriate wiring diagram. Inspect ignition system capacitor for damage or short circuits. Check capacitor wiring back to harness splice for open circuits or short to power. |
| P0301 | Cylinder 1 Misfire Detected | Ignition system cylinder 1 Ignition system wiring harness | Check cylinder 1 ignition coil for secure fixing and check wiring harness connector for damage and correct engagement. Visually confirm condition and grade of spark plug. Install a new spark plug of the correct grade if required. Refer to appropriate wiring diagram: check power supply line for open circuits or shorts to ground, check line to ignition coil from ignition relay in front power distribution box. Check ground connection between ignition coil and ground point for open circuits. Check ignition line from engine control module to ignition coil for open circuits, short to power, short to ground. Check feedback line from ignition coil to engine control module for open circuits or short to ground/power. Minimum supply voltage at coil is 10.5 volts. maximum resistance in signal lines is 5 ohms. Repair wiring using appropriate repair kit as required. Minimum supply voltage at coil is 10.5 volts. maximum resistance in signal lines is 5 ohms. Repair wiring using appropriate repair kit as required. If there are no wiring faults, swap suspect ignition coil to a different cylinder, clear DTCs. retest vehicle. If the misfire changes cylinder replace the ignition coil. |
| P0303 | Cylinder 3 Misfire Detected | Ignition system cylinder 3 Ignition system wiring harness | Check cylinder 3 ignition coil for secure fixing and check wiring harness connector for damage and correct engagement. Visually confirm condition and grade of spark plug. Install a new spark plug of the correct grade if required. Refer to appropriate wiring diagram: check power supply line for open circuits or shorts to ground, check line to ignition coil from ignition relay in front power distribution box. Check ground connection between ignition coil and ground point for open circuits. Check ignition line from engine control module to ignition coil for open circuits, short to power, short to ground. Check feedback line from ignition coil to engine control module for open circuits or short to ground/power. Minimum supply voltage at coil is 10.5 volts. maximum resistance in signal lines is 5 ohms. Repair wiring using appropriate repair kit as required. If there are no wiring faults, swap suspect ignition coil to a different cylinder, clear DTCs. retest vehicle. If the misfire changes cylinder replace the ignition coil. |
| P0305 | Cylinder 5 Misfire Detected | Ignition system cylinder 5 Ignition system wiring harness | Check cylinder 5 ignition coil for secure fixing and check wiring harness connector for damage and correct engagement. Visually confirm condition and grade of spark plug. Install a new spark plug of the correct grade if required. Refer to appropriate wiring diagram: check power supply line for open circuits or shorts to ground, check line to ignition coil from ignition relay in front power distribution box. Check ground connection between ignition coil and ground point for open circuits. Check ignition line from engine control module to ignition coil for open circuits, short to power, short to ground. Check feedback line from ignition coil to engine control module for open circuits or short to ground/power. Minimum supply voltage at coil is 10.5 volts. maximum resistance in signal lines is 5 ohms. Repair wiring using appropriate repair kit as required. If there are no wiring faults, swap suspect ignition coil to a different cylinder, clear DTCs. retest vehicle. If the misfire changes cylinder replace the ignition coil. |
| P0302 | Cylinder 2 Misfire Detected | Ignition system cylinder 2 Ignition system wiring harness | Check cylinder 2 ignition coil for secure fixing and check wiring harness connector for damage and correct engagement. Visually confirm condition and grade of spark plug. Install a new spark plug of the correct grade if required. Refer to appropriate wiring diagram: check power supply line for open circuits or shorts to ground, check line to ignition coil from ignition relay in front power distribution box. Check ground connection between ignition coil and ground point for open circuits. Check ignition line from engine control module to ignition coil for open circuits, short to power, short to ground. Check feedback line from ignition coil to engine control module for open circuits or short to ground/power. Minimum supply voltage at coil is 10.5 volts. maximum resistance in signal lines is 5 ohms. Repair wiring using appropriate repair kit as required. If there are no wiring faults, swap suspect ignition coil to a different cylinder, clear DTCs. retest vehicle. If the misfire changes cylinder replace the ignition coil. |
| P0304 | Cylinder 4 Misfire Detected | Ignition system cylinder 4 Ignition system wiring harness | Check cylinder 4 ignition coil for secure fixing and check wiring harness connector for damage and correct engagement. Visually confirm condition and grade of spark plug. Install a new spark plug of the correct grade if required. Refer to appropriate wiring diagram: check power supply line for open circuits or shorts to ground, check line to ignition coil from ignition relay in front power distribution box. Check ground connection between ignition coil and ground point for open circuits. Check ignition line from engine control module to ignition coil for open circuits, short to power, short to ground. Check feedback line from ignition coil to engine control module for open circuits or short to ground/power. Minimum supply voltage at coil is 10.5 volts. maximum resistance in signal lines is 5 ohms. Repair wiring using appropriate repair kit as required. If there are no wiring faults, swap suspect ignition coil to a different cylinder, clear DTCs. retest vehicle. If the misfire changes cylinder replace the ignition coil. |
| P0306 | Cylinder 6 Misfire Detected | Ignition system cylinder 6 Ignition system wiring harness | Check cylinder 6 ignition coil for secure fixing and check wiring harness connector for damage and correct engagement. Visually confirm condition and grade of spark plug. Install a new spark plug of the correct grade if required. Refer to appropriate wiring diagram: check power supply line for open circuits or shorts to ground, check line to ignition coil from ignition relay in front power distribution box. Check ground connection between ignition coil and ground point for open circuits. Check ignition line from engine control module to ignition coil for open circuits, short to power, short to ground. Check feedback line from ignition coil to engine control module for open circuits or short to ground/power. Minimum supply voltage at coil is 10.5 volts. maximum resistance in signal lines is 5 ohms. Repair wiring using appropriate repair kit as required. If there are no wiring faults, swap suspect ignition coil to a different cylinder, clear DTCs. retest vehicle. If the misfire changes cylinder replace the ignition coil. |
| P1313 | Misfire Rate Catalyst Damage Fault - Bank 1 | Concern with ignition system and wiring harness on bank 1 | Refer to the appropriate wiring diagram. Check ignition circuits on bank one for damage to insulation. Check ignition coil power supply, ground and signal circuits for open circuits, shorts to ground or power, high resistance. Repair any wiring defects using appropriate methods and materials. Clear DTC and retest the system to check for normal operation. |
| P1314 | Misfire Rate Catalyst Damage Fault - Bank 2 | Concern with ignition system and wiring harness on bank 2 | Refer to the appropriate wiring diagram. Check ignition circuits on bank two for damage to insulation. Check ignition coil power supply, ground and signal circuits for open circuits, shorts to ground or power, high resistance. Repair any wiring defects using appropriate methods and materials. Clear DTC and retest the system to check for normal operation. |
| P1316 | Injector Driver Module Codes Detected | Ignition system Ignition system harness | Refer to repair manual, check ignition system components. Inspect ignition system harness for evidence of damage. Check power supply to ignition coils, check EMS control lines. Repair wiring faults using appropriate materials and methods. Clear DTC and retest system to confirm correct operation. |
| P0131 | O2 Circuit Low Voltage (Bank 1, Sensor 1) | Concern with upstream O2 sensor Wiring between upstream O2 sensor and ECM | Refer to the appropriate wiring diagram: check the wiring harness connections between the engine control module and upstream oxygen sensor. Check sensor signal circuits for short to ground or high resistance. |
| P0132 | O2 Circuit High Voltage (Bank 1, Sensor 1) | Concern with upstream O2 sensor Wiring between upstream O2 sensor and ECM | Refer to the appropriate wiring diagram: check the wiring harness connections between the engine control module and upstream oxygen sensor. |
| P0133 | O2 Circuit Slow Response (Bank 1, Sensor 1) | Exhaust leak/damage Concern with upstream O2 sensor Upstream O2 sensor not achieving normal operating temperature Wiring between upstream O2 sensor and ECM Fuel injector flow partially blocked Catalyst efficiency decrease | Inspect exhaust system for damage and evidence of leakage. replace any defective components. Clear the DTCs and retest the system. Check fuse for power supply to O2 sensor heater. Install a replacement fuse and inspect wiring for short circuits if defective. Clear the DTCs and retest the system. Check power supply line from front power distribution box to O2 sensor heater for open circuits and high resistance. Repair defects using appropriate harness repair kit. Clear the DTCs and retest the system. Check ground circuit from O2 sensor heater to engine control module connector for open circuits. Repair defects using appropriate wiring repair kit. Clear the DTCs and retest the system. Disconnect oxygen sensor connector and measure the continuity though the heating circuit of the sensor. If there is no continuity, replace the sensor. Clear the DTCs and retest the system |
| P0031 | HO2S Heater Control Circuit Low (Bank 1, Sensor 1) | Concern with upstream O2 sensor heater Wiring fault between upstream O2 sensor and ECM Wiring fault between Upstream O2 sensor and Front Power Distribution Box | Inspect wiring harness from O2 sensor for damage. Replace or repair any damaged components. clear DTCs and retest vehicle. Check voltage supply from front power distribution box to O2 sensor heater circuit. If less than 10.5 volts check and repair |
| P0032 | HO2S Heater Control Circuit High (Bank 1, Sensor 1) | Concern with upstream O2 sensor heater Wiring fault between upstream O2 sensor and ECM Wiring fault between Upstream O2 sensor and Front Power Distribution Box | Check wiring between oxygen sensor and engine control module for obvious defects. Refer to the appropriate circuit diagram and check the ground connection from the heater circuit for open circuits or high resistance. Repair circuits, clear DTC, retest systems. |
| P0152 | O2 Circuit High Voltage (Bank 2, Sensor 1) | Concern with upstream O2 sensor heater Wiring fault between upstream O2 sensor and ECM Wiring fault between Upstream O2 sensor and Front Power Distribution Box | Check wiring between oxygen sensor and engine control module for obvious defects. Refer to the appropriate circuit diagram and check the signal lines for short to power. Repair circuits, clear DTC, retest systems. |
| P0153 | O2 Circuit Slow Response (Bank 2, Sensor 1) | Exhaust leak/damage Concern with upstream O2 sensor Upstream O2 sensor not achieving normal operating temperature Wiring between upstream O2 sensor and ECM Fuel injector flow partially blocked Catalyst efficiency decrease | Check exhaust system is free from defects and is not leaking. Repair as required, clear DTCs and retest. Check oxygen sensor heater power supply and ground lines for open circuits and shorts. Repair defective wiring as required. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS, check oxygen sensor signal lines to engine control module for open circuits, short circuits and high resistance. Repair circuits as required, clear DTC and retest system. Clean fuel injectors using approved equipment. clear DTCs, retest system. Check fuel for evidence of contamination which may have damaged oxygen sensors or catalysts. |
| P0051 | HO2S Heater Control Circuit Low (Bank 2, Sensor 1) | Concern with upstream O2 sensor heater Wiring fault between upstream O2 sensor and ECM Wiring fault between Upstream O2 sensor and Front Power Distribution Box | Check power supply to HO2S heater element connector pin with the ignition on. If the voltage is less than 10.5 volts check the front power distribution box fuses. Check the wiring circuit from the front power distribution box to the HO2S sensor connector for open circuits or shorts to ground. Repair any wiring faults using approved methods and materials, replace any blown fuses and clear the DTC. retest the system for correct operation. Check wiring circuit between the HO2S sensor connector and the engine control module. |
| P0052 | HO2S Heater Control Circuit High (Bank 2, Sensor 1) | Concern with upstream O2 sensor heater Wiring fault between upstream O2 sensor and ECM | Check power supply to HO2S heater element connector pin with the ignition on. If the voltage is less than 10.5 volts check the front power distribution box fuses. Check the wiring circuit from the front power distribution box to the HO2S sensor connector for open circuits or shorts to ground. Repair any wiring faults using approved methods and materials, replace any blown fuses and clear the DTC. retest the system for correct operation. |
| P0137 | O2 Circuit Low Voltage (Bank 1, Sensor 2) | Concern with downstream O2 sensor Wiring between downstream O2 sensor and ECM | Check oxygen sensor wiring harness for signs of damage to the insulation. Check the signal and screen circuits for open circuits, and shorts to ground. Check heater circuit power circuit is supplied with power and the control line is not open circuit. Check sensor for evidence of fouling |
| P0138 | O2 Circuit High Voltage (Bank 1, Sensor 2) | Concern with downstream O2 sensor heater Wiring fault between downstream O2 sensor and ECM Wiring fault between downstream O2 sensor and Front Power Distribution Box | Check oxygen sensor wiring harness for signs of damage to the insulation. Check the signal and screen circuits for shorts to power. |
| P0140 | O2 Circuit No Activity Detected (Bank 1, Sensor 2) | Power supply to oxygen sensor heater not present Wiring harness fault Oxygen sensor faulty | Check power distribution box fuses to ensure the heater element of the oxygen sensor is powered. Check oxygen sensor heating element control line is not open circuit or has a high resistance. Check sensor signal lines for open circuits and shorts to ground. Repair wiring fault using approved methods and materials. Check oxygen sensor for contamination or masked sensing tip. Replace the sensor if suspect. Clear DTC, retest the system to confirm correct operation. |
| P0037 | HO2S Heater Control Circuit Low (Bank 1, Sensor 2) | Concern with downstream O2 sensor heater Wiring fault between downstream O2 sensor and ECM Wiring fault between downstream O2 sensor and Front Power Distribution Box | Check power supply to HO2S heater element connector pin with the ignition on. If the voltage is less than 10.5 volts check the front power distribution box fuses. Check the wiring circuit from the front power distribution box to the HO2S sensor connector for open circuits or shorts to ground. Repair any wiring faults using approved methods and materials, replace any blown fuses and clear the DTC. retest the system for correct operation. |
| P0038 | HO2S Heater Control Circuit High (Bank 1, Sensor 2) | Concern with downstream O2 sensor heater Wiring fault between downstream O2 sensor and ECM | Check engine wiring harness for signs of damage. Check HO2S heater control circuit for short to power. Check HO2S for internal short circuit. Repair wiring using appropriate methods and materials, clear DTC and retest system for correct operation. Replace HO2S if suspect. Clear DTC and retest systems to confirm correct operation. |
| P0157 | O2 Circuit Low Voltage (Bank 2, Sensor 2) | Concern with downstream O2 sensor Wiring fault between downstream O2 sensor and ECM | Check oxygen sensor wiring harness for signs of damage to the insulation. Check the signal and screen circuits for open circuits, and shorts to ground. Check heater circuit power circuit is supplied with power and the control line is not open circuit. Check sensor for evidence of fouling |
| P0158 | O2 Circuit High Voltage (Bank 2, Sensor 2) | Concern with downstream O2 sensor Wiring fault between downstream O2 sensor and ECM | Check oxygen sensor wiring harness for signs of damage to the insulation. Check the signal and screen circuits for shorts to power. |
| P0160 | O2 Circuit No Activity Detected (Bank 2, Sensor 2) | Power supply to oxygen sensor heater not present Wiring harness fault Oxygen sensor faulty | Check power distribution box fuses to ensure the heater element of the oxygen sensor is powered. Check oxygen sensor heating element control line is not open circuit or has a high resistance. Check sensor signal lines for open circuits and shorts to ground. Repair wiring fault using approved methods and materials. Check oxygen sensor for contamination or masked sensing tip. Replace the sensor if suspect. Clear DTC, retest the system to confirm correct operation. |
| P0057 | HO2S Heater Control Circuit Low (Bank 2, Sensor 2) | Concern with downstream O2 sensor Wiring fault between downstream O2 sensor and ECM Wiring fault between downstream O2 sensor and Front Power Distribution Box | Check power supply to HO2S heater element connector pin with the ignition on. If the voltage is less than 10.5 volts check the front power distribution box fuses. Check the wiring circuit from the front power distribution box to the HO2S sensor connector for open circuits or shorts to ground. Repair any wiring faults using approved methods and materials, replace any blown fuses and clear the DTC. retest the system for correct operation. |
| P0058 | HO2S Heater Control Circuit High (Bank 2, Sensor 2) | Concern with downstream O2 sensor heater Wiring fault between downstream O2 sensor and ECM | Check power supply to HO2S heater element connector pin with the ignition on. If the voltage is less than 10.5 volts check the front power distribution box fuses. Check the wiring circuit from the front power distribution box to the HO2S sensor connector for open circuits or shorts to ground. Repair any wiring faults using approved methods and materials, replace any blown fuses and clear the DTC. retest the system for correct operation. |
| P0171 | System Too Lean (Bank 1) | Fuel injectors Fuel delivery fault | Inspect fuel system for faults. Check fuel pressure is within expected range. Check for other relevant DTCs on components related to bank 1, rectify those DTC first then clear all DTCs, retest system to confirm correct operation. |
| P0172 | System Too Rich (Bank 1) | Fuel injectors Fuel delivery fault | Inspect fuel system for faults. Check fuel pressure is within expected range. Check for other relevant DTCs on components related to bank 1, rectify those DTC first then clear all DTCs, retest system to confirm correct operation. |
| P0174 | System Too Lean (Bank 2) | Fuel injectors Fuel delivery fault | Inspect fuel system for faults. Check fuel pressure is within expected range. Check for other relevant DTCs on components related to bank 2, rectify those DTC first then clear all DTCs, retest system to confirm correct operation. |
| P0175 | System Too Rich (Bank 2) | Fuel injectors Fuel delivery fault | Inspect fuel system for faults. Check fuel pressure is within expected range. Check for other relevant DTCs on components related to bank 2, rectify those DTC first then clear all DTCs, retest system to confirm correct operation. |
| P0441 | Evaporative Emission System Incorrect Purge Flow | Fault in a tank ventilation system hose Fault within purge control valve Purge valve wiring circuit fault Engine control module fault | Inspect fuel system mechanical parts for leaks, restrictions or incorrect hose connections. Refer to the appropriate circuit diagram and check the purge valve solenoid power supply for correct voltage. If the voltage is less than 10.5 volts with the ign on check the power distribution box and supply line for high resistance or shorts to ground. Check the purge valve control circuit for open circuit, short circuit to ground, or power. |
| P0444 | Evaporative Emission System Purge Control Valve Circuit Open | Concern with power distribution components Concern with wiring from front power distribution box to purge valve Concern with wiring from purge valve to ECM Fault within purge valve Fault within ECM | Refer to the relevant circuit diagram: check condition of front power distribution box fuses and relays. Refer to the relevant circuit diagram: check wiring from front power distribution box to purge valve for open circuits. Refer to relevant circuit diagram: check wiring between ECM and purge valve for open circuits. Check purge control valve winding resistance value |
| P0445 | Evaporative Emission System Purge Control Valve Circuit Shorted | Concern with power distribution components Concern with wiring from front power distribution box to purge valve Concern with wiring from purge valve to ECM Fault within purge valve Fault within ECM | Refer to the relevant circuit diagram: check condition of front power distribution box fuses and relays. Refer to the relevant circuit diagram: check wiring from front power distribution box to purge valve for short circuits. Refer to relevant circuit diagram: check wiring between ECM and purge valve for short circuits. Check purge control valve winding resistance value. |
| P0340 | Camshaft Position Sensor A Circuit (Bank 1 or single sensor) | Internal fault on cam position sensor Fault on wiring circuits between cam position sensor and engine control module. Air gap incorrect Camshaft target damaged or contaminated | Check camshaft position sensor is installed correctly, check the sensor and target wheel is free from foreign debris. Clean and reinstall the sensor as required. clear the DTCs and retest the system. Consult the appropriate circuit diagram and check the wiring between the camshaft position sensor and the engine control module. Check for open circuits, shorts and high resistance on both signal wires. Repair any wiring faults using appropriate methods. Ensure that the signal wires remain twisted in the wiring harness. Clear DTCs and retest system. If fault resets install a new cam position sensor. |
| P0341 | Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or single sensor) | Internal fault on cam position sensor Fault on wiring circuits between cam position sensor and engine control module Air gap incorrect Camshaft target damaged or contaminated | Check right bank camshaft position sensor is installed correctly, check the sensor and target wheel is free from foreign debris. Clean and reinstall the sensor as required. clear the DTCs and retest the system. Consult the appropriate circuit diagram and check the wiring between the camshaft position sensor and the engine control module. Check for open circuits, shorts and high resistance on both signal wires. Repair any wiring faults using appropriate methods. Ensure that the signal wires remain twisted in the wiring harness. Clear DTCs and retest system. If fault resets install a new cam position sensor. |
| P0345 | Camshaft Position Sensor A Circuit (Bank 2 | Internal fault on cam position sensor Fault on wiring circuits between cam position sensor and engine control module Air gap incorrect Camshaft target damaged or contaminated | Check bank 2 camshaft position sensor is installed correctly, check the sensor and target wheel is free from foreign debris. Clean and reinstall the sensor as required. clear the DTCs and retest the system. Consult the appropriate circuit diagram and check the wiring between the camshaft position sensor and the engine control module. Check for open circuits, shorts and high resistance on both signal wires. Repair any wiring faults using appropriate methods. Ensure that the signal wires remain twisted in the wiring harness. Clear DTCs and retest system. If fault resets install a new cam position sensor. |
| P1340 | Camshaft Position Sensor B Circuit | Internal fault on cam position sensor Fault on wiring circuits between cam position sensor and engine control module Air gap incorrect Camshaft target damaged or contaminated | Check left bank camshaft position sensor is installed correctly, check the sensor and target wheel is free from foreign debris. Clean and reinstall the sensor as required. clear the DTCs and retest the system. Consult the appropriate circuit diagram and check the wiring between the camshaft position sensor and the engine control module. Check for open circuits, shorts and high resistance on both signal wires. Repair any wiring faults using appropriate methods. Ensure that the signal wires remain twisted in the wiring harness. Clear DTCs and retest system. If fault resets install a new cam position sensor. |
| P0346 | Fuel Level Sensor B Circuit | Fuel tank module Wiring harness fault | Check fuel tank B module for level sensor operation. Check fuel level sensor signal and ground lines between tank module and instrument pack for open circuits, high resistance and shorts to ground or power. Repair wiring faults using appropriate methods and materials, clear DTC and retest system to ensure correct operation. |
| P1341 | Camshaft Position Sensor B Circuit Range/Performance | Internal fault on cam position sensor Fault on wiring circuits between cam position sensor and engine control module Air gap incorrect Camshaft target damaged or contaminated | Check left bank camshaft position sensor is installed correctly, check the sensor and target wheel is free from foreign debris. Clean and reinstall the sensor as required. clear the DTCs and retest the system. Consult the appropriate circuit diagram and check the wiring between the camshaft position sensor and the engine control module. Check for open circuits, shorts and high resistance on both signal wires. Repair any wiring faults using appropriate methods. Ensure that the signal wires remain twisted in the wiring harness. Clear DTCs and retest system. If fault resets install a new cam position sensor. |
| P0335 | Crankshaft Position Sensor A Circuit | Internal fault in Crank Position and Speed sensor Fault in wiring between Crank Position and Speed sensor and the ECM Incorrect air gap between Crank Position and Speed sensor and reference target Contamination of reference target | Check the crank position sensor for correct installation. Is the sensor or reference target contaminated or damaged? Clean away any contamination found and clear the DTCs. Retest the system for normal operation. Check the engine wiring harness for signs of damage, the sensor circuits are screened and grounded through the knock sensor circuit. Repair any DTCs relating to the knock sensor circuit before repairing this DTC. Disconnect the crankshaft sensor and engine control module. Check the crankshaft position sensor ground line for open circuits, shorts to power, or shorts to ground. Check the crankshaft position sensor signal line for open circuits, shorts to power or ground. Check for short circuits between the crank sensor lines and the knock sensor screen ground line. Repair any faults found using approved methods and materials. After repair, clear DTCs and retest the system for correct operation. If the DTC resets and there are no electrical faults found in the wiring harness replace the crank sensor, clear the DTC and retest the system for correct operation. |
| P0336 | Crankshaft Position Sensor A Circuit Range/Performance | Internal fault in Crank Position and Speed sensor Fault in wiring between Crank Position and Speed sensor and the ECM Incorrect air gap between Crank Position and Speed sensor and reference target Contamination of reference target | Check the crank position sensor for correct installation. Is the sensor or reference target contaminated or damaged? Clean away any contamination found and clear the DTCs. Retest the system for normal operation. Check the engine wiring harness for signs of damage, the sensor circuits are screened and grounded through the knock sensor circuit. Repair any DTCs relating to the knock sensor circuit before repairing this DTC. Disconnect the crankshaft sensor and engine control module. Check the crankshaft position sensor ground line for open circuits, shorts to power, or shorts to ground. Check the crankshaft position sensor signal line for open circuits, shorts to power or ground. Check for short circuits between the crank sensor lines and the knock sensor screen ground line. Repair any faults found using approved methods and materials. After repair, clear DTCs and retest the system for normal operation. If the DTC resets and there are no electrical faults found in the wiring harness replace the crank sensor, clear the DTC and retest the system for normal operation. |
| P0107 | Manifold Absolute Pressure/BARO Sensor Low | Fault in wiring circuits between engine control module and manifold absolute pressure sensor Internal fault on manifold absolute pressure sensor | NOTE: The throttle position sensor is also supplied on this line. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check wiring between manifold pressure sensor and engine control module. Check 5 volt supply line from engine control module to manifold pressure sensor for shorts to ground. Check the ground line between manifold absolute pressure sensor and the engine control module for open or short circuits. Check the manifold absolute pressure sensor signal line to the engine control module for shorts to ground |
| P0108 | Manifold Absolute Pressure/BARO Sensor High | Fault in wiring circuits between engine control module and manifold absolute pressure sensor Internal fault on manifold absolute pressure sensor | NOTE: The throttle position sensor is also supplied on this line. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check wiring between manifold pressure sensor and engine control module. Check 5 volt supply line from engine control module to manifold pressure sensor for shorts to ground. Check the ground line between manifold absolute pressure sensor and the engine control module for open or short circuits. Check the manifold absolute pressure sensor signal line to the engine control module for shorts to power. |
| P0106 | Manifold Absolute Pressure/BARO Sensor Range/Performance | Air leak in engine intake manifold or crankcase ventilation system Leaks, contamination or blockages preventing proper communication between manifold absolute pressure sensor and intake manifold Fault in wiring circuits between engine control module and manifold absolute pressure sensor Internal fault on manifold absolute pressure sensor | NOTE: The throttle position sensor is also supplied on this line. check engine intake system and crankcase ventilation system for leaks or blockages. Check manifold absolute pressure sensor is not contaminated. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check wiring between manifold pressure sensor and engine control module. Check 5 volt supply line from engine control module to manifold pressure sensor for shorts to ground. Check the ground line between manifold absolute pressure sensor and the engine control module for open or short circuits. Check the manifold absolute pressure sensor signal line to the engine control module for shorts to power or ground |
| P0116 | Engine Coolant Temperature Sensor 1 Circuit Range/Performance | Coolant level low or contaminated Thermostat failure Insufficient airflow through radiator core ECT sensor internal fault ECT sensor wiring fault | Check coolant level and condition. Fill system to correct level and purge air if necessary. Check thermostat opens. Check airflow through radiator (including electric fan operation). Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check the integrity of the wiring between the ECT . Sensor and the ECM. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS, check ECM ground connections |
| P0117 | Engine Coolant Temperature Sensor 1 Circuit Low | ECT sensor internal fault ECT sensor wiring fault | Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check wiring between ECM and ECT for open circuits or short to ground. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS, check ECM ground connections |
| P0118 | Engine Coolant Temperature Sensor 1 Circuit High | ECT sensor internal fault ECT sensor wiring fault | Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check wiring between ECM and ECT for open circuits or short to power. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS, check ECM ground connections |
| P0125 | Insufficient Coolant Temp For Closed Loop Fuel Control | Coolant level low or contaminated Thermostat failure ECT sensor internal fault ECT sensor wiring fault | Check coolant level and condition. Fill system to correct level and purge air if necessary. Check thermostat closes. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check the integrity of the wiring between the ECT sensor and the ECM. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS, check ECM ground connections |
| P1367 | Ignition Spare | RH bank ignition amplifiers Wiring harness fault | 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. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS, check wiring for faults and repair as per approved methods and materials. Clear DTC and retest system for correct operation. |
| P1368 | Ignition Spare | LH bank ignition amplifiers wiring harness fault | 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, check wiring for faults and repair as per approved methods and materials. Clear DTC and retest system for correct operation. |
| P0351 | Ignition Coil A Primary/Secondary Circuit | Ignition module internal fault Spark plug problem Ignition module wiring harness fault | Verify condition and grade of spark plug fitted. Fit new spark plug set if required. Refer to the appropriate circuit diagram: check power supply to coil module is at least 10.5 volts. If less than 10.5 volts inspect power supply circuit for short to ground or high resistance. Check ground circuit from coil connector to chassis ground point for open circuits and high resistance. Check ignition trigger line from engine control module to ignition coil module for open circuits, short circuits and high resistance. Check ignition feedback signal wire from engine control module to ignition coil module for open circuits, short circuits, high resistance. Repair any circuit defects using the appropriate repair kit. clear DTC and retest system. Move the suspect ignition coil module to a different cylinder, clear DTCs and retest system. If the DTC reoccurs and moves with the suspect coil, install a new ignition coil. |
| P0353 | Ignition Coil C Primary/Secondary Circuit | Ignition module internal fault Spark plug problem Ignition module wiring harness fault | Verify condition and grade of spark plug fitted. Fit new spark plug set if required. Refer to the appropriate circuit diagram: check power supply to coil module is at least 10.5 volts. If less than 10.5 volts inspect power supply circuit for short to ground or high resistance. Check ground circuit from coil connector to chassis ground point for open circuits and high resistance. Check ignition trigger line from engine control module to ignition coil module for open circuits, short circuits and high resistance. Check ignition feedback signal wire from engine control module to ignition coil module for open circuits, short circuits, high resistance. Repair any circuit defects using the appropriate repair kit. clear DTC and retest system. Move the suspect ignition coil module to a different cylinder, clear DTCs and retest system. If the DTC reoccurs and moves with the suspect coil, install a new ignition coil. |
| P0355 | Ignition Coil E Primary/Secondary Circuit | Ignition module internal fault Spark plug problem Ignition module wiring harness fault | Verify condition and grade of spark plug fitted. Fit new spark plug set if required. Refer to the appropriate circuit diagram: check power supply to coil module is at least 10.5 volts. If less than 10.5 volts inspect power supply circuit for short to ground or high resistance. Check ground circuit from coil connector to chassis ground point for open circuits and high resistance. Check ignition trigger line from engine control module to ignition coil module for open circuits, short circuits and high resistance. Check ignition feedback signal wire from engine control module to ignition coil module for open circuits, short circuits, high resistance. Repair any circuit defects using the appropriate repair kit. clear DTC and retest system. Move the suspect ignition coil module to a different cylinder, clear DTCs and retest system. If the DTC reoccurs and moves with the suspect coil, install a new ignition coil. |
| P0352 | Ignition Coil B Primary/Secondary Circuit | Ignition module internal fault Spark plug problem Ignition module wiring harness fault | Verify condition and grade of spark plug fitted. Fit new spark plug set if required. Refer to the appropriate circuit diagram: check power supply to coil module is at least 10.5 volts. If less than 10.5 volts inspect power supply circuit for short to ground or high resistance. Check ground circuit from coil connector to chassis ground point for open circuits and high resistance. Check ignition trigger line from engine control module to ignition coil module for open circuits, short circuits and high resistance. Check ignition feedback signal wire from engine control module to ignition coil module for open circuits, short circuits, high resistance. Repair any circuit defects using the appropriate repair kit. clear DTC and retest system. Move the suspect ignition coil module to a different cylinder, clear DTCs and retest system. If the DTC reoccurs and moves with the suspect coil, install a new ignition coil. |
| P0354 | Ignition Coil D Primary/Secondary Circuit | Ignition module internal fault Spark plug problem Ignition module wiring harness fault | Verify condition and grade of spark plug fitted. Fit new spark plug set if required. Refer to the appropriate circuit diagram: check power supply to coil module is at least 10.5 volts. If less than 10.5 volts inspect power supply circuit for short to ground or high resistance. Check ground circuit from coil connector to chassis ground point for open circuits and high resistance. Check ignition trigger line from engine control module to ignition coil module for open circuits, short circuits and high resistance. Check ignition feedback signal wire from engine control module to ignition coil module for open circuits, short circuits, high resistance. Repair any circuit defects using the appropriate repair kit. clear DTC and retest system. Move the suspect ignition coil module to a different cylinder, clear DTCs and retest system. If the DTC reoccurs and moves with the suspect coil, install a new ignition coil. |
| P0356 | Ignition Coil F Primary/Secondary Circuit | Ignition module internal fault Spark plug problem Ignition module wiring harness fault | Verify condition and grade of spark plug fitted. Fit new spark plug set if required. Refer to the appropriate circuit diagram: check power supply to coil module is at least 10.5 volts. If less than 10.5 volts inspect power supply circuit for short to ground or high resistance. Check ground circuit from coil connector to chassis ground point for open circuits and high resistance. Check ignition trigger line from engine control module to ignition coil module for open circuits, short circuits and high resistance. Check ignition feedback signal wire from engine control module to ignition coil module for open circuits, short circuits, high resistance. Repair any circuit defects using the appropriate repair kit. clear DTC and retest system. Move the suspect ignition coil module to a different cylinder, clear DTCs and retest system. If the DTC reoccurs and moves with the suspect coil, install a new ignition coil. |
| P0201 | Injector Circuit / Open - Cylinder 1 | Injector electrical harness fault cylinder 1 Internal fault on fuel injector cylinder 1 | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P0203 | Injector Circuit / Open - Cylinder 3 | Injector electrical harness fault cylinder 3 Internal fault on fuel injector cylinder 3 | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P0205 | Injector Circuit / Open - Cylinder 5 | Injector electrical harness fault cylinder 5 Internal fault on fuel injector cylinder 5 | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P0202 | Injector Circuit / Open - Cylinder 2 | Injector electrical harness fault cylinder 2 Internal fault on fuel injector cylinder 2 | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P0204 | Injector Circuit / Open - Cylinder 4 | Injector electrical harness fault cylinder 4 Internal fault on fuel injector cylinder 4 | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P0206 | Injector Circuit / Open - Cylinder 6 | Injector electrical harness fault cylinder 6 Internal fault on fuel injector cylinder 6 | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P0111 | Intake Air Temperature Sensor 1 Circuit Range/Performance | Intake Air Temperature sensor internal fault Wiring fault between MAF/IAT sensor and Engine Control Module Wiring fault between Front Power Distribution box and MAF/IAT sensor | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P0112 | Intake Air Temperature Sensor 1 Circuit Low | Intake Air Temperature sensor internal fault Wiring fault between MAF/IAT sensor and Engine Control Module Wiring fault between Front Power Distribution box and MAF/IAT sensor | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P0113 | Intake Air Temperature Sensor 1 Circuit High | Intake Air Temperature sensor internal fault Wiring fault between MAF/IAT sensor and Engine Control Module Wiring fault between Front Power Distribution box and MAF/IAT sensor | Inspect engine wiring harness for security of injector connectors, pin back out, and visible damage to harness insulation. Check voltage supply to injector connector. If no voltage is present at injector check the wiring harness for open circuits or high resistance. If voltage is present at the injector connector check the control line from the injector connection to the engine control module for open circuits or high resistance. Repair wiring using appropriate methods and materials. Clear DTC and retest system. Check injector coil winding resistance against component specifications |
| P1245 | Alternator Load Low Input | Generator Wiring harness | Generator field terminal circuit low. Check wiring harness between alternator and engine control module for open circuits, short circuit to ground, high resistance. Repair wiring harness fault using approved methods and materials. Clear DTC, retest system to confirm correct operation. |
| P1246 | Alternator Load Input | Generator Wiring harness | Generator field terminal circuit fault, check wiring harness between alternator and engine control module for open circuits, short circuit to ground, high resistance. Repair wiring harness fault using approved methods and materials. Clear DTC, retest system to confirm correct operation. |
| P0102 | Mass or Volume Air Flow A Circuit Low | Mass air flow sensor contaminated or air flow obstructed Mass air flow sensor internal electrical fault Wiring fault between Front Power Distribution Box and MAF sensor Wiring fault between MAF sensor and Engine Control Module | Check induction system for contamination, leaks or partial blockages. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check mass air flow sensor voltage supply from Front Power Distribution Box. Check voltage signal lines from mass air flow sensor to engine control module for short circuits. |
| P0103 | Mass or Volume Air Flow A Circuit High | Mass air flow sensor contaminated or air flow obstructed Mass air flow sensor internal electrical fault Wiring fault between Front Power Distribution Box and MAF sensor Wiring fault between mass air flow sensor and Engine Control Module | Check induction system for contamination, leaks or partial blockages. Check voltage signal lines from mass air flow sensor to engine control module for open circuits or high resistance. Check all sensor ground lines for open circuits or high resistance. |
| P1104 | Mass Air Flow Sensor Circuit Ground | Mass airflow sensor internal electrical fault Wiring fault between mass air flow sensor and engine control module Wiring fault between engine control module and chassis ground | Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check continuity of engine control ground connections. Check sensor ground connections from Engine Control Module to the Mass Air Flow sensor |
| P0101 | Mass or Volume Air Flow A Circuit Range/Performance | Mass air flow sensor contaminated or air flow obstructed Mass air flow sensor internal electrical fault Wiring fault between Front Power Distribution Box and MAF sensor Wiring fault between MAF sensor and Engine Control Module | Check induction system for contamination, leaks or partial blockages |
| P0327 | Knock Sensor 1 Circuit Low (Bank1) | Insecure mechanical contact with engine block Internal fault in Knock Sensor Fault in knock sensor / engine control module wiring harness Internal fault in engine control module | Check knock sensor is correctly secured. Remove knock sensor, clean mating faces of sensor and cylinder block, refit sensor and torque fastener to correct value. Clear DTC and conduct road test to check if fault code resets. |
| P0332 | Knock Sensor 2 Circuit Low (Bank 2) | Insecure mechanical contact with engine block Internal fault in Knock Sensor Fault in knock sensor / engine control module wiring harness Internal fault in engine control module | Check knock sensor is correctly secured. Remove knock sensor, clean mating faces of sensor and cylinder block, refit sensor and torque fastener to correct value. Clear DTC and conduct road test to check if fault code resets. Check engine wiring harness for damaged insulation. Check knock sensor line A for short to ground |
| P0333 | Knock Sensor 2 Circuit High (Bank 2) | Fault in knock sensor / engine control module wiring harness Internal fault in engine control module | Check knock sensor circuit for short to power. Repair wiring harness using appropriate method. Delete DTD and retest system. |
| P1648 | Knock Sensor Input Chip | Internal fault in knock sensor | Check knock sensor is correctly secured. Remove knock sensor, clean mating faces of sensor and cylinder block, refit sensor and torque fastener to correct value. Clear DTC and conduct road test to check if fault code resets. |
| P1516 | Intake Manifold Runner Control Input Error (Bank 1) | Intake manifold runner control flap stuck Wiring harness fault | Check intake manifold runner control harness for signs of damage. Check power supply to the control valve, if less than 10.5 volts check for high resistance or shorts to ground. Check control line from intake manifold runner control valve to the engine control module for open circuits, high resistance and shorts to power or ground. Check flap for signs of mechanical blocking. Repair wiring harness or replace control valve unit as required. Clear DTC and retest system to ensure correct operation. |
| P0010 | Intake Camshaft Position Actuator Circuit / Open (Bank 1) | Wiring harness disconnected or damaged. Internal fault within cam position sensor. Internal fault in engine control module. | Check engine wiring harness connectors for security. Check ground line from VVT actuator to chassis ground does not have high resistance. Check VVT actuator control line continuity from engine control module to the VVT actuator connector. Repair wiring harness or connector pins using appropriate methods and materials. Clear DTCs and retest system. If DTC resets change over the VVT actuators, clear the DTC and retest the system. If the DTC changes bank replace the suspect VVT actuator with a new component. Clear the DTC and retest the system. If the DTC resets on the same bank replace the engine control module. Clear the DTC and retest the system. |
| P1384 | Variable Valve Timing Solenoid A Circuit | Engine wiring harness fault Internal fault within variable valve timing solenoid Internal fault in engine control module | Inspect engine wiring harness for damage to insulation and security of connectors. Check the VVT solenoid power ground connection for open circuits and high resistance. Repair the wiring harness if required using approved methods and materials. Clear the DTC and retest the system for normal operation. Check the VVT solenoid power ground pin on the engine control module for damage or distortion. Check pin is grounded when ignition is on. If the pin is not grounded suspect the engine control module. Replace the component, clear the DTC and retest the system for normal operation. Check Bank A timing solenoid control circuit for open circuits, short circuits and high resistance. Repair any wiring faults using approved materials and methods. clear the DTC and retest the system for normal operation. If there are no faults in the wiring harness or ground connections, replace the VVT timing solenoid, clear the DTC and retest the system for correct operation |
| P0020 | Intake Camshaft Position Actuator Circuit / Open (Bank 2) | Wiring harness disconnected or damaged. Internal fault within cam position sensor. Internal fault in engine control module. | Check engine wiring harness connectors for security. Check ground line from VVT actuator to chassis ground does not have high resistance. Check VVT actuator control line continuity from engine control module to the VVT actuator connector. Repair wiring harness or connector pins using appropriate methods and materials. Clear DTCs and retest system. If DTC resets change over the VVT actuators, clear the DTC and retest the system. If the DTC changes bank replace the suspect VVT actuator with a new component. Clear the DTC and retest the system. If the DTC resets on the same bank replace the engine control module. Clear the DTC and retest the system. |
| P0560 | System Voltage | Battery power distribution system. Fuel injection pressure sensor fault | Check voltage on keep alive power supply line to engine control module. Check for open circuits and high resistance. Check fuse is serviceable. Repair wiring using approved methods and materials. Clear DTC and retest system. This DTC can also be set by a fuel injection pressure sensor fault. If DTC P0193 is present rectify that problem first. |
| P1642 | CAN Link Circuit | Wiring harness fault control module connector pin distortion or back out | Refer to appropriate circuit diagram and check the CAN link circuit for open circuits, shorts, shorts to power or ground. Check connectors for distorted or backed out connector pins. |
| P1643 | CAN Link Engine Control Module/Transmission Control Module Circuit/Network | Wiring harness fault control module connector pin distortion or back out | Refer to appropriate circuit diagram and check the Engine control module to Transmission control module CAN link circuit for open circuits, shorts, shorts to power or ground. Check connectors for distorted or backed out connector pins. |
| P1637 | CAN Link ECM/ABS Control Module Circuit/Network | Wiring harness fault control module connector pin distortion or back out | Refer to appropriate circuit diagram and check the Engine control module to ABS module CAN link circuit for open circuits, shorts, shorts to power or ground. Check connectors for distorted or backed out connector pins. |
| P1638 | CAN Link ECM/INSTM Circuit/Network | Wiring harness fault control module or instrument pack connector pin distortion or back out | Refer to appropriate circuit diagram and check the Engine control module to instrument pack CAN link circuit for open circuits, shorts, shorts to power or ground. Check connectors for distorted or backed out connector pins. |
| P1243 | Second Fuel Pump Fault or Ground Fault | Wiring harness fault Fuel pump module fault | Check wiring to fuel pump module for open circuits, high resistance or shorts to power or ground. Repair any wiring faults and clear the DTC, retest for correct operation. Change pump module if DTC resets. |
| P0603 | Internal Control Module Keep Alive Memory (KAM) Error | Engine Control Module | Confirm battery voltage is present on engine control module keep alive power line. If voltage is not present repair the wiring circuit, clear the DTC, retest the vehicle. If the DTC resets replace the engine control module. |
| P0460 | Fuel Level Sensor A Circuit | Fuel tank module Wiring harness | Check fuel level sensor wiring from tank module to instrument pack for open circuits, short circuits to power or ground, and high resistance. Repair wiring faults using approved methods and materials. Clear DTC and retest system to confirm correct operation. If no wiring faults are present replace sensor/tank module. Clear DTC and retest system for correct operation. |
| P1646 | Linear O2 Sensor Control Chip (Bank 1) | HO2S sensor fault Wiring harness fault Engine control module fault | Verify operation of HO2S heater circuit, check power supply to heater and control circuit. Repair wiring harness or replace HO2S sensor as required. Clear DTC and retest system to confirm correct operation. Check HO2S sensing circuit for short circuit to ground, short circuit to high voltage, open circuit, high resistance. Repair wiring faults using appropriate methods and materials. Clear DTC and confirm correct operation. If no wiring defects are found and the HO2S sensor is operating normally suspect the engine control module. Install a new ECM and test system to confirm correct operation. |
| P1647 | Linear O2 Sensor Control Chip (Bank 2) | HO2S sensor fault Wiring harness fault Engine control module fault | Verify operation of HO2S heater circuit, check power supply to heater and control circuit. Repair wiring harness or replace HO2S sensor as required. Clear DTC and retest system to confirm correct operation. Check HO2S sensing circuit for short circuit to ground, short circuit to high voltage, open circuit, high resistance. Repair wiring faults using appropriate methods and materials. Clear DTC and confirm correct operation. If no wiring defects are found and the HO2S sensor is operating normally suspect the engine control module. Install a new ECM and test system to confirm correct operation. |
| P0197 | Engine Oil Temperature Sensor Circuit Low | Oil temperature sensor internal fault Oil temp sensor circuit fault Engine Control Module fault | Check electrical circuit between oil temperature sensor and Engine Control Module for short circuits to ground. |
| P0198 | Engine Oil Temperature Sensor Circuit High | Oil temperature sensor internal fault Oil temp sensor circuit fault Engine Control Module fault | Check electrical circuit between oil temperature sensor and Engine Control Module for open circuits . |
| P0196 | Engine Oil Temperature Sensor Circuit Range/Performance | Oil temperature sensor internal fault Oil temp sensor circuit fault Engine Control Module fault | Check electrical circuits between oil temperature sensor and Engine Control Module for open circuits, short circuits or high resistance on circuit connections . |
| P0105 | Manifold Absolute Pressure/BARO Circuit | Manifold absolute pressure/BARO sensor internal fault or seal failure Wiring harness fault Engine control module internal fault | Check the security and sealing of the MAP/BARO sensor, ensure there are no air leaks present. Replace defective components or seals. Clear the DTC and retest the system. Refer to the appropriate circuit diagram: Check the 5 volt supply to the sensor, is the voltage present at the sensor between 4 and 6 volts? If the voltage is under 4 volts check the supply line for high resistance or an open circuit. If the voltage is over 6 volts check the supply line for a short to power. If no faults are found on the wiring harness suspect other sensors sharing the same power distribution and check for other relevant DTCs. If the wiring circuits are found to be fault free check the voltage output from the engine control module 5v sensor supply pin. Repair faults in the wiring harness using approved methods and materials. If the 5v supply is not present replace the engine control module. Retest the system. Check the sensor ground connection circuit for open circuits or high resistance. Repair any electrical faults, clear the DTC and retest the system. Check the sensor signal line for open circuits, high resistance and shorts to power or ground. Repair faults in the circuit using appropriate materials and methods. Clear the DTC and retest the system . If no faults are evident on the wiring harness replace the manifold absolute pressure/BARO sensor, clear the DTC and retest the system. |
| P0128 | Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature) | Coolant thermostat Engine coolant temperature sensor Wiring harness fault | Check operation of engine cooling system thermostat, verify thermostat is opening and closing at the appropriate temperatures. Replace thermostat if required, clear DTC, retest system for correct operation. Check wiring harness between ECT and ECM for damage, check ECT signal line for open circuit, short circuit to ground or power, and high resistance. Repair faults using approved methods and materials. Clear DTC and retest system for correct operation. Check voltage output from ECT is plausible, renew ECT sensor if voltage is not consistent with temperature value. Clear DTC, retest system for correct operation. |
| P1146 | Alternator Load Low | Wiring harness fault Alternator fault ECM fault | Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS, check alternator C line for short to ground, open circuit or high resistance. Repair any faults found using approved methods and materials. Perform charging system check following repairs to determine if the alternator is performing correctly. Clear DTC and retest system to confirm correct operation. |
| P1244 | Alternator Load High Input | Wiring harness fault Alternator fault ECM fault | Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS, check alternator C line for short to power. Repair any faults found using approved methods and materials. Perform charging system check following repairs to determine if the alternator is performing correctly. Clear DTC and retest system to confirm correct operation. |
| P1629 | Internal Voltage Regulator | Alternator Wiring harness | Perform a check on charging system. Repair defective wiring harness using approved materials and methods. Clear DTC and retest system for correct operation. Renew alternator if charging performance is below specified requirements. |
| P1632 | Main Relay (power hold) | Main relay Front power distribution box fault Wiring harness fault | Check operation of relay, replace relay if required. Refer to appropriate wiring diagram and check relay supply terminals and output terminals, check fuses and supply lines to ECM and sensors for open circuits, and shorts to ground. Repair wiring faults using approved methods and materials. Clear DTC and retest system to confirm correct operation. |
| P0616 | Starter Relay Circuit Low | Starter relay Starter relay drive circuit | Check starter relay power supply in front power distribution box. Check the control circuit from the ECM to the front power distribution box for open circuits or short to ground. Check the relay output circuit to the starter. Repair any damaged circuits using approved methods and materials, replace the relay if no faults a re found in the wiring circuits. Clear the DTC and retest the system for correct operation. |
| P0617 | Starter Relay Circuit High | Starter relay Starter relay drive circuit | Check starter relay power supply in front power distribution box. Check the control circuit from the ECM to the front power distribution box for open circuits or short to power. Check the relay output circuit to the starter. Repair any damaged circuits using approved methods and materials, replace the relay if no faults are found in the wiring circuits. Clear the DTC and retest the system for correct operation. |
| P1549 | Intake Manifold Communication Control Circuit | VIS flap stuck VIS flap motor fault wiring harness concern | Check VIS flap on bank 1 For mechanical jamming, rectify if required. Test electrical supply circuits from front power distribution box, test control circuit to ECM for open circuits, high resistance and shorts to ground. Repair wiring circuits. clear DTC and retest the system to ensure correct operation. |
| P1606 | ECM Control Relay Output Circuit | ECM relay fault engine wiring harness fault | Check input power supply to the ECM relay from the battery. Check the control circuit fro the ECM is not open or shorted to power. Check the output circuits from the relay are not shorted to ground or open circuit. Rectify any defects using appropriate materials and methods. Replace the relay if no faults are found in the wiring harness. Clear the DTC and retest the system for correct operation. |
| P0646 | A/C Clutch Relay Control Circuit Low | A/C clutch relay fault wiring harness fault | Check voltage supply to the A/C clutch relay on the front power distribution box. Check the relay ground connection. Check the control circuit to the ECM for open circuits or short to ground. Repair any faults found using appropriate methods and materials. In there are no wiring defects found replace the relay. Clear the DTC and retest the system for correct operation |
| P0647 | A/C Clutch Relay Control Circuit High | A/C clutch relay fault wiring harness fault | Check voltage supply to the A/C clutch relay on the front power distribution box. Check the relay ground connection. Check the control circuit to the ECM for shorts to power. Repair any faults found using appropriate methods and materials. In there are no wiring defects found replace the relay. Clear the DTC and retest the system for correct operation |
| P1699 | CAN Link ECM / Climate Control Module | Wiring harness fault module connector pin distortion | Refer to the appropriate wiring diagram, check the CAN link circuits between the ECM and the climate control module. Check all module connector pins for distortion or back out. Repair any defects using the appropriate methods and materials. |
| P0511 | Idle Air Control Circuit | Engine wiring harness fault idle speed control valve | Check the idle speed control valve wiring circuits for open circuits, shorts to power or ground. Repair using appropriate materials and methods. |
| P0121 | Throttle/Pedal Position Sensor A Circuit Range/Performance | Engine wiring harness fault Throttle position sensor internal fault or mechanical connection to throttle linkage incorrect Fault on other sensors connected to the 5v power bus | Check throttle position sensor for security and signs of mechanical damage or contamination. Check supply voltage to the sensor with the ignition on, the voltage should be between 4 and 6 volts. If the voltage is outside this range the fault may be caused by another circuit connected to the 5v sensor supply bus. If the voltage is less than 4v inspect the circuit for shorts to ground or high resistance. If the voltage is more than 6v check the 5v supply bus circuit for shorts to power. Check the sensor signal line for high resistance, shorts to power or ground. |
| P0122 | 'Throttle/Pedal Position Sensor A Circuit Low | Engine wiring harness fault Internal fault on throttle position sensor Fault on other sensors connected to the 5v power bus | Check throttle position sensor for security and signs of mechanical damage or contamination. Check supply voltage to the sensor with the ignition on, the voltage should be between 4 and 6 volts. If the voltage is outside this range the fault may be caused by another circuit connected to the 5v sensor supply bus. If the voltage is less than 4v inspect the circuit for shorts to ground or high resistance. |
| P0123 | Throttle/Pedal Position Sensor A Circuit High | Engine wiring harness fault Internal fault on throttle position sensor Fault on other sensors connected to the 5v power bus | Check throttle position sensor for security and signs of mechanical damage or contamination. Check supply voltage to the sensor with the ignition on, the voltage should be below 6 volts. If the voltage is above this range the fault may be caused by another circuit connected to the 5v sensor supply bus. Disconnect the Engine Control Module and throttle position sensor, check the sensor signal line for shorts to power. Check the throttle sensor ground connection for continuity and high resistance. Repair wiring harness using approved methods and materials |
| P0506 | Idle Air Control System RPM Lower Than Expected | Throttle body fault Idle speed control valve fault Air leak between MAF sensor and throttle body Accessory drive overload | Check the throttle body for a sticking throttle plate. Check the idle speed control valve for contamination. Clean the throttle body and idle speed control valve as required. Clear the DTC and retest the system for correct operation. Check intake system for air leaks, repair as required. Clear DTC and retest system for correct operation. Check mechanical belt drive components for seized bearings or excessive friction. |
| P0507 | Idle Air Control System RPM Higher Than Expected | Throttle body fault Idle speed control valve fault Air leak between engine and throttle body Engine crankcase ventilation system air leak | Check crankcase ventilation system for air leaks. Retest the system to confirm correct operation. Check for air leaks between the throttle body and the engine. Check the throttle body and idle speed control valve for contamination. Rectify any faults found and clear the DTC. Retest the system for correct operation. |
| P0831 | Clutch Pedal Switch A Circuit Low | Power distribution to clutch pedal switch. Wiring circuit damage between power distribution box and engine control module or cruise control module. Internal fault within clutch pedal switch. Internal fault within cruise control module | Check power distribution fuses to the clutch pedal switch circuit. Check clutch pedal switch contact functionality, switch should be open/closed circuit according to pedal position. Check the power supply circuit to the clutch pedal switch for shorts to ground. Check power supply circuit to the brake pedal switches for shorts to ground. If short to ground detected on clutch pedal switch signal line, disconnect cruise control module and recheck, if short is no longer present install a new cruise control module. Repair wiring harness using approved methods and materials. Clear DTC and retest the system. |
| P0832 | Clutch Pedal Switch A Circuit High | Wiring circuit damage between power distribution box and engine control module or cruise control module. Internal fault within clutch pedal switch. | Check clutch pedal switch contact functionality, switch should be open/closed circuit according to pedal position. Check the power supply circuit to the clutch pedal switch for shorts to power. Check power supply circuit to the brake pedal switches for shorts to power. Repair wiring harness using approved methods and materials. Clear DTC and retest the system. |
| P1260 | Theft Detected, Vehicle Immobilized | Ignition key not recognized Vehicle anti theft system fault | Check that the ignition key is valid for the vehicle, program the key to the vehicle and clear the DTC. Retest the vehicle to confirm correct operation. Refer to workshop manual and perform diagnostic test on the vehicle anti theft system. |
| P0480 | Fan 1 Control Circuit | Internal fault in cooling fan module fault in cooling fan module harness or connections Internal fault in engine control module | Check the cooling fan blades are free to rotate. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS and check the power supply to the cooling fan control module from the front power distribution box for open circuits, check relevant relays and fuses. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check the ground connection to the cooling fan control module for open circuits. Check the PWM signal line from the engine control module to the cooling fan control module for open circuits, short circuits and high resistance. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS: check the circuits between the motors and the cooling fan control module for open circuits, short circuits and high resistance. Disconnect the fan motors from the vehicle harness and connect an independent fused power and ground supply to test motor operation. If the motors do not operate replace them. If the motors do operate run the engine until it is at a temperature where the fans should be operating (also turn on AC) and, using a suitable meter, check for the presence of a pulse width modulated signal output from the engine control module. If a pulse width modulated signal is present replace the cooling fan control module. If a pulse width modulated signal is not present replace the engine control module. |
| P1517 | Intake Manifold Runner Control Input Error | Fault in engine wiring harness Fault in manifold runner valve | Check the power supply to the intake runner control valve. If it is less than 10.5 volts with the ignition on check the power distribution box and input circuit for open circuits or high resistance and shorts to ground. Repair any faults found using appropriate methods and materials. If there are no wiring faults replace the intake manifold runner control valve, clear the DTC and retest the system for correct operation |
| P0532 | A/C Refrigerant Pressure Sensor A Circuit Low | Internal fault on Engine Control Module. Wiring harness fault between A/C refrigerant pressure sensor and Engine Control Module. A/C refrigerant pressure sensor internal fault. | Check voltage supply from engine control module to the A/C refrigerant pressure sensor. The voltage present on the sensor 5v supply line should be greater than 4v at the pressure sensor when the ignition is on. If the voltage is less than 4v inspect the supply line for a high resistance or short to ground between the engine control module and the A/C refrigerant sensor. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS and check other sensors connected to the 5 volt supply bus. If the 5v sensor supply bus is free from shorts to ground the fault may be within the engine control module. Check the sensor ground connection for short to power or high resistance. Check the sensor signal line between the A/C refrigerant pressure sensor and the engine control module for shorts to ground. If sensor supply voltage is correct and the wiring harness has no faults replace the pressure transducer, clear the DTC and retest the system. |
| P0533 | A/C Refrigerant Pressure Sensor A Circuit High | Wiring harness fault between A/C refrigerant pressure sensor and Engine Control Module. A/C refrigerant pressure sensor internal fault. | Check voltage supply from engine control module to the A/C refrigerant pressure sensor. The voltage present on the sensor supply line should be 5v at the pressure sensor when the ignition is on. If the voltage is greater than 6v inspect the supply line for a short to power between the engine control module and the A/C refrigerant sensor. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS and check other sensors connected to the 5 volt supply bus. If the 5v sensor supply bus is free from shorts to power the fault may be within the engine control module. Check the sensor ground connection for short to power or high resistance. Check the sensor signal line between the A/C refrigerant pressure sensor and the engine control module for shorts to power. If sensor supply voltage is correct and the wiring harness has no faults replace the pressure transducer, clear the DTC and retest the system. |
| P1571 | Brake Switch | Mechanical operation of brake pedal switch (mounting or adjustment) Brake switch internal electrical fault Wiring harness fault between brake switch and engine control module or cruise control module | Check mechanical security of brake pedal switch. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS and check the power supply to the brake pedal switch from the passenger junction box. Refer to appropriate SYSTEM appropriate SYSTEM WIRING DIAGRAMS and check for open circuits, short circuits, or high resistance on the wiring circuit between the brake pedal switch and the engine control module, cruise control module and vacuum module. |
| P1582 | Electronic Throttle Monitor Data Available | This code does not indicate failure of a component, it indicates flight data has been recorded | Data can be read using approved diagnostic equipment |
| NOTE |
|---|
| The throttle position sensor is also supplied on this line. |
| NOTE |
|---|
| The throttle position sensor is also supplied on this line. |
| NOTE |
|---|
| The throttle position sensor is also supplied on this line. |
Electronic Engine Controls - Diagnostic Procedures
- Verify the customer concern by operating the system.
- Visually inspect for obvious signs of mechanical and electrical damage. Visual Inspection Chart Mechanical Electrical Engine oil level Cooling system coolant level Fuel Contamination Throttle body Fuses (9, 31, 32, 37) Wiring harness Electrical connector(s) Sensor(s) Engine control module (ECM)
- Verify the following systems are working correctly: Air intake system Cooling system Charging system Fuel charging system
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the concern is not visually evident and the Jaguar Approved Diagnostic System is not available, use a fault code reader to retrieve the fault codes before proceeding to the Diagnostic Trouble Code (DTCs) Index Chart.
- Make sure that a power supply is present to the ECM from fuse 32 of the engine compartment fuse box before carrying out diagnostic work on the electronic engine control system.
| DTC | Description | Possible Source | Action |
|---|---|---|---|
| P0116, P0117, P0118, P0125 | Concern with engine coolant temperature (ECT) sensor. | ECT sensor. ECT sensor circuit(s). Low/contaminated coolant. Thermostat failure. Overheating. | Refer to Pinpoint Test A . |
| P0128 | Concern with engine temperature, set by ECT sensor inputs. | Thermostat. ECT sensor. ECT sensor circuit(s). | Mechanical check of thermostat. Refer to Pinpoint Test A . |
| P0335, P0336 | Concern with crankshaft position (CKP) sensor. | CKP sensor. CKP sensor circuit(s). CKP sensor air gap. CKP sensor debris. | Refer to Pinpoint Test B . |
| P0340, P0341 | Concern with right-hand bank camshaft position (CMP) sensor. | CMP sensor. CMP sensor circuit(s). CMP sensor air gap. CMP sensor debris. | Refer to Pinpoint Test C . |
| P1340, P1341 | Concern with left-hand bank camshaft position (CMP) sensor. | CMP sensor. CMP sensor circuit(s). CMP sensor air gap. CMP sensor debris. | Refer to Pinpoint Test D . |
| P0031, P0032 | Concern with right-hand bank heated oxygen sensor (HO2S 1/1) heater. | H02S 1/1 failure. H02S 1/1 circuit(s). Fuse 38. | Refer to Pinpoint Test E . |
| P0181, P0182, P0183 | Concern with fuel temperature sensor. | Fuel temperature sensor. Fuel temperature sensor circuit(s). | Refer to Pinpoint Test F . |
| P0327, P0328, P0332, P0333, P1648 | Concern with knock sensor (KS). | KS. KS circuit(s). Poor contact with cylinder block. ECM failure. | Refer to Pinpoint Test G . |
| P0197, P0198, P0196 | Concern with oil temperature sensor. | Oil temperature sensor. Oil temperature sensor circuit(s). | Refer to Pinpoint Test H . |
| P0131, P0132 | Concern with right-hand bank heated oxygen sensor (HO2S 1/1). | HO2S 1/1. HO2S 1/1 circuit(s). | Refer to Pinpoint Test I . |
| P0133 | Concern with right-hand bank heated oxygen sensor (HO2S 1/1). Slow response | Engine misfire. H02S 1/1 disconnected. H02S 1/1 mechanical damage. H02S 1/1 to ECM wiring fault. H02S 1/1 short circuit to ground. H02S 1/1 wiring shield open circuit. H02S 1/1 heater circuit fault. Exhaust leak. Low exhaust temperature. Injector flow partially blocked. Catalyst efficiency decrease. H02S 1/1 failure. | Refer to Pinpoint Test I , Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR and Exhaust System article. Refer to Fuel Charging and Controls article. |
| P1646 | Concern with right-hand bank heated oxygen sensor (HO2S 1/1). | H02S 1/1 heater failure. H02S 1/1 sensing circuit, short circuit to ground. H02S 1/1 sensing circuit, short circuit to high voltage. H02S 1/1 sensing circuit, open circuit. ECM failure. | Refer to Pinpoint Test I and Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR . |
| P0037, P0038, P0137, P0138 | Concern with right-hand bank catalyst monitor sensor (H02S 1/2). | H02S 1/2. H02S 1/2 circuit(s). Fuse 38. | Refer to Pinpoint Test J . |
| P0140 | Concern with right-hand bank catalyst monitor sensor (H02S 1/2). | Exhaust leak. Low exhaust temperature. | Inspect exhaust system, Refer to Exhaust System article. |
| P0151, P0152 | Concern with left-hand bank heated oxygen sensor (HO2S 2/1). | HO2S 2/1. HO2S 2/1 circuit(s). | Refer to Pinpoint Test K . |
| P0153 | Concern with left-hand bank heated oxygen sensor (HO2S 2/1). Slow response | Engine misfire. H02S 2/1 disconnected. H02S 2/1 mechanical damage. H02S 2/1 to ECM wiring fault. H02S 2/1 short circuit to ground. H02S 2/1 wiring shield open circuit. H02S 2/1 heater circuit fault. Exhaust leak. Low exhaust temperature. Injector flow partially blocked. Catalyst efficiency decrease. H02S 2/1 failure. | Refer to Pinpoint Test K , Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR and Exhaust System article. Refer to Fuel Charging and Controls article. |
| P1647 | Concern with left-hand bank heated oxygen sensor (HO2S 2/1). | H02S 2/1 heater failure. H02S 2/1 sensing circuit, short circuit to ground. H02S 2/1 sensing circuit, short circuit to high voltage. H02S 2/1 sensing circuit, open circuit. ECM failure. | Refer to Pinpoint Test K and Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR . |
| P0057, P0058, P0157, P0158 | Concern with left-hand bank catalyst monitor sensor (HO2S 2/2). | HO2S 2/2. HO2S 2/2 sensor circuit(s). Fuse 42. | Refer to Pinpoint Test L . |
| P0160 | Concern with left-hand bank catalyst monitor sensor (HO2S 2/2). | Exhaust leak. Low exhaust temperature. | Inspect exhaust system, Refer to Exhaust System article. |
| P0420 | Concern with right-hand bank catalytic converter system. (Efficiency below threshold) | 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. HO2 sensor failed. Catalytic converter failure. | Refer to Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR . Visually inspect catalytic converters. |
| P0430 | Concern with left-hand bank catalytic converter system (Efficiency below threshold). | 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. HO2 sensor failed. Catalytic converter failure. | Refer to Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR . Visually inspect catalytic converters, Refer to Exhaust System article. |
| P0101, P0102 | Concern with mass air flow (MAF) sensor. | MAF sensor. MAF sensor circuit(s). Blocked air filter. Air intake leak. Engine breather leak. Throttle control malfunction. | Refer to Pinpoint Test M . Visually inspect components listed, Refer to Intake Air Distribution and Filtering and Fuel Charging and Controls article. |
| P0103, P1104 | Concern with mass air flow (MAF) sensor. | MAF sensor. MAF sensor circuit(s). | Refer to Pinpoint Test M . |
| P0111 | Concern with the intake air temperature (IAT) sensor. | MAF sensor. MAF sensor circuit(s). Blocked air filter. Air intake leak. Engine breather leak. | Refer to Pinpoint Test N . Visually inspect components listed. Refer to Intake Air Distribution and Filtering article. |
| P0112, P0113 | Concern with the intake air temperature (IAT) sensor. | Intake air temperature (IAT) sensor. Intake air temperature (IAT) sensor circuit. | Refer to Pinpoint Test N . |
| P0051, P0052 | Concern with the left-hand bank heated oxygen sensor (HO2S 2/1) heater. | HO2S 2/1. HO2S 2/1 circuit. Fuse 42. | Refer to Pinpoint Test O . |
| P1606 | Concern with ECM relay. | ECM. ECM relay. ECM relay circuit(s). Fuse 31. | Refer to Pinpoint Test P . |
| P0105, P1107, P1108 | Concern with MAP sensor. | MAP sensor. MAP sensor circuits. | Refer to Pinpoint Test Q . |
| P0106, P0107, P0108 | Concern with barometric (HAC) sensor. | Barometric sensor within the ECM. | Refer to Pinpoint Test Q . INSTALL a new ECM, for additional information, refer to dealer technical support. |
| P0010, P1384 | Concern with VVT circuit, right-hand bank. | VVT solenoid and circuit. Oil flow. Camshaft failure. | Refer to Pinpoint Test R , Variable Camshaft Timing (VCT) Oil Control Solenoid or Variable Camshaft Timing (VCT) Oil Control Solenoid article. |
| P0020, P1396 | Concern with VVT circuit, left-hand bank. | VVT solenoid and circuit. Oil flow. Camshaft failure. | Refer to Pinpoint Test S , Variable Camshaft Timing (VCT) Oil Control Solenoid or Variable Camshaft Timing (VCT) Oil Control Solenoid article. |
| P1251, P1631, P1657, P1658 | Concern with throttle motor relay. | Throttle motor relay. Throttle motor relay circuit. | Refer to Pinpoint Test T . Check Fuse 18. |
| P1549 | Concern with IMT Valve 1 circuit. | IMT valve. IMT valve circuit. | Refer to Pinpoint Test U . |
| P1532 | Concern with IMT Valve 2 circuit. | IMT valve. IMT valve circuit. | Refer to Pinpoint Test V . |
| P1582 | "Flight Recorder" data stored. | This code does not indicate a failure of a component or system. | Refer to Pinpoint Test W . |
| P1240, P1241, P1242 | Concern with sensor power supply. | ECM. Power supply circuits. Sensors within the circuit. | Refer to Pinpoint Test X . |
| P1243 | Concern with sensor ground circuit. | ECM. Sensor ground circuits. Sensors within the circuit. | Refer to Pinpoint Test Y . |
| P1122, P1123, P1344 | Concern with accelerator pedal position sensor; Track 1. | APP sensor. APP sensor circuits. | Refer to Pinpoint Test Z . |
| P1215, P1216, P1344 | Concern with accelerator pedal position sensor; Track 3. | APP sensor. APP sensor circuits. | Refer to Pinpoint Test AA . |
| P0480 | Concern with radiator cooling fan module drive. | Cooling fan module. Cooling fan module circuits. | Refer to Pinpoint Test AB . |
| P0646, P0647 | Concern with air conditioning clutch relay drive. | Air conditioning clutch relay. Air conditioning clutch relay circuits. | Refer to Pinpoint Test AC . |
| P1516, P1517 | Concern with P/N switch starting/driving malfunctions. | CJFB. Ignition relay. TR sensor. Inertia switch and circuits. | Refer to Pinpoint Test AD . |
| P1245, P1246 | Concern with engine crank signal, high/low voltage. | Starter relay. ECM. Ignition switch. Associated circuits. | Refer to Pinpoint Test AE . |
| P1260 | Security input malfunction. | GEM. Ignition key. PATS circuits. CAN network. | Reprogram key, check CAN network, Refer to Communications Network article. |
| P0506 | Idle RPM lower than expected. | Air intake restriction. Accessory drive overload. (defective/seized component). Throttle valve stuck closed. Throttle body failure. | Refer to Intake Air Distribution and Filtering , Accessory Drive and Fuel Charging and Controls article. |
| P0507 | Idle RPM higher than expected. | 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). | Refer to Speed Control article. |
| P0603, P1611, P1633, P1634, P1656 | Concern with powertrain control module (ECM). | ECM. | INSTALL a new ECM. For additional information, refer to dealer technical support. |
| P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205, P0206 | Concern with fuel system too lean/rich. | Fuel injector(s). Fuel delivery fault. | Refer to Fuel Charging and Controls article. |
| P0300, P0301, P0302, P0303, P0304, P0305, P0306, P1313, P1314, P1316 | Concern with ignition system/misfire monitoring. | Ignition system. Ignition system wiring harness. | Refer to Engine Ignition article. |
| P0351, P0352, P0353, P0354, P0355, P0356 | Concern with ignition primary circuits. | Ignition modules. Ignition module circuits. | Refer to Engine Ignition article. |
| P0441, P0442, P0443, P0444, P0445, P0446, P0447, P0448, P0450, P0452, P0453, P0455, P0456 | Concern with evaporative emissions system. | Evaporative/purge valve and circuits. Fuel tank and lines. Filler cap. Carbon canister. Canister close valve and circuits. Fuel tank pressure sensor. Fuel tank vapor port. Vapor lines. | Refer to Intake Air Distribution and Filtering article. |
| P0460 | Concern with fuel level sensors. | Fuel level sensors. Fuel level sensor circuits. Instrument cluster. | Refer to Fuel Charging and Controls article. |
| P0560 | ECM battery power supply voltage malfunction. (This DTC could be set due to a fuel injection pressure sensor fault. If P0193 is also set, rectify P0193 first). | ECM battery power supply circuit open circuit or high resistance. | Repair the circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. |
| P0565, P0566, P0567, P0568, P0569, P0570, P0831, P0832, P0834, P0835, P1571 | Concern with vehicle speed control. | Switch pack. Switch pack circuits. Clutch cancel switch. Clutch safety switch. Brake on/off switch. | Refer to Speed Control article. |
| P0616, P0617 | Concern with the starter relay circuit. | Starter relay. Starter relay drive circuit. | Refer to Starting System article. |
| P1224, P1229, P1250, P1254 | Concern with throttle body. | Throttle motor. Throttle motor relay. Throttle motor relay circuits. Throttle body. Throttle position sensor. Throttle position sensor circuits. Throttle return spring. Limp-home spring. | Refer to Fuel Charging and Controls article. |
| P1234, P1236, P1338 | Concern with fuel pump commands. | Fuel pump control module. Fuel pump control module circuits. ECM. | Refer to Fuel Charging and Controls article. |
| P1244, P1629, P1632, P1146 | Concern with charging system. | Charging system. Charging system wiring harness. | Refer to Charging System article. |
| P0191, P0192, P0193 | Concern with fuel pressure sensor. | Fuel pressure sensor circuit(s). Fuel pressure sensor. Fuel system leak/blockage. | Refer to Fuel Charging and Controls article. |
| P0121, P0122, P0123, P0222, P0223 | Concern with throttle position (TP) sensor. | TP sensor. TP sensor circuit(s). | See Throttle Position (TP) Sensor or Throttle Position (TP) Sensor article. |
| P1000 | System check not complete since last memory clear. | OBD errors not cleared by diagnosis. | Carry out comprehensive component monitor drive cycle. Refer to DTC Index of JTIS, accessed by the icon on the opening page. |
| P1111 | System check complete since last memory clear. | This code does not indicate a failure of a component or system. | No action necessary. |
| P1367 | Concern with right-hand bank ignition amplifier. | Ignition module. Ignition module circuits. | Refer to Engine Ignition article. |
| P1368 | Concern with left-hand bank ignition amplifier. | Ignition module. Ignition module circuits. | Refer to Engine Ignition article. |
| P1656 | Concern with TP sensor amplifier circuit. | ECM. | INSTALL a new ECM. For additional information, refer to, dealer technical support. |
| P1609 | CPU to CPU communications. | ECM. | INSTALL a new ECM. For additional information, refer to, dealer technical support. |
| P1637, P1638. P1642, P1643, P1699 | Concern with CAN network. | CAN network modules and circuits. | Refer to Communications Network article. |
Diagnostic Trouble Code (DTC) Index
Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR
Pinpoint Test A
A1
CHECK THE ENGINE COOLANT TEMPERATURE (ECT) SENSOR SIGNAL WIRE FOR OPEN CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the ECT sensor electrical connector EN18.
- Disconnect the ECM electrical connector, EN16.
- Measure the resistance between the ECT sensor electrical connector EN18, pin 2 (UY) and the ECM electrical connector EN16, pin 70 (UY).
Is the resistance less than 5 ohms?
YES Go to step 2 . → A2
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
A2
CHECK THE ECT SENSOR SIGNAL WIRE FOR A SHORT TO GROUND
- Measure the resistance between the ECT sensor electrical connector EN18, pin 2 (UY) and EN16, pin 19.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 3 . → 3
A3
CHECK THE ECT SENSOR GROUND CIRCUIT
- Measure the resistance between the ECT sensor electrical connector EN18, pin 1 (BG) and EN16, pin 19.
Is the resistance less than 5 ohms?
YES Go to step 4 . → A4
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
A4
CHECK THE ECT SENSOR GROUND CIRCUIT FOR A SHORT TO BATTERY POSITIVE
- Turn the ignition switch to the ON position.
- Measure the voltage between the ECT electrical connector EN18, pin 1 (BG) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 5 . → 5
A5
CHECK THE ECT SENSOR CIRCUIT FOR A SHORT TO BATTERY POSITIVE
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Measure the voltage between the ECT sensor electrical connector EN18, pin 2 (UY) and GROUND.
Is the voltage greater than 5 volts?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new ECT sensor. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test B: DTC P0335, P0336, P1245, P1246. CRANKSHAFT POSITION (CKP) SENSOR
Pinpoint Test B
B1
CHECK THE CKP SENSOR FOR CORRECT INSTALLATION
- Turn the ignition switch to the OFF position.
- Check the CKP sensor for correct installation.
Is the CKP sensor correctly installed?
YES Go to step 2 . → B2
NO INSTALL the CKP sensor correctly. See «Crankshaft Position (CKP) Sensor»(ref-311888-S06476541992009040700000) or «Crankshaft Position (CKP) Sensor»(ref-311889) article. Reconnect the sensor. CLEAR the DTCs. TEST the system for normal operation.
B2
CHECK THE CKP SENSOR FOR DEBRIS
- Remove the CKP sensor and inspect for debris.
Is the CKP sensor free of debris?
YES Go to step 3 . → B3
NO CLEAN the sensor and wheel. INSTALL the sensor. See «Crankshaft Position (CKP) Sensor»(ref-311888-S06476541992009040700000) or «Crankshaft Position (CKP) Sensor»(ref-311889) article. Reconnect the sensor. CLEAR the DTCs. TEST the system for normal operation.
B3
CHECK THE CKP SENSOR GROUND WIRE FOR OPEN CIRCUIT
- Disconnect the ECM electrical connector EN16.
- Disconnect the CKP sensor electrical connector EN12.
- Measure the resistance between the CKP sensor electrical connector EN12, pin 1 (Y) and the ECM electrical connector EN16, pin 37 (Y).
Is the resistance less than 5 ohms?
YES Go to step 4 . → B4
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. Reconnect all connectors. CLEAR the DTCs. TEST the system for normal operation.
B4
CHECK THE CKP SENSOR SIGNAL WIRE FOR OPEN CIRCUIT
- Measure the resistance between the CKP sensor electrical connector EN12, pin 2 (P) and the ECM electrical connector EN16, pin 36 (P).
Is the resistance less than 5 ohms?
YES Go to step 5 . → B5
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. Reconnect all connectors. CLEAR the DTCs. TEST the system for normal operation.
B5
CHECK THE CKP SENSOR GROUND WIRE FOR A SHORT TO GROUND
- Measure the resistance between the CKP sensor electrical connector EN12 pin 1 (Y) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. Reconnect all connectors. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 6 . → 6
B6
CHECK THE CKP SENSOR SIGNAL WIRE FOR A SHORT TO GROUND
- Measure the resistance between the CKP sensor electrical connector EN12 pin 2 (P) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. Reconnect all connectors. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 7 . → 7
B7
CHECK THE CKP SENSOR GROUND WIRE FOR A SHORT TO BATTERY
- Turn the ignition switch to the ON position.
- Measure the voltage between the CKP sensor electrical connector EN12 pin 1 (Y) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. Reconnect all connectors. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 8 . → 8
B8
CHECK THE CKP SENSOR SIGNAL WIRE FOR A SHORT TO BATTERY
- Turn the ignition switch to the ON position.
- Measure the voltage between the CKP sensor electrical connector EN12 pin 2 (P) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. Reconnect all connectors. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new CKP sensor. See «Crankshaft Position (CKP) Sensor»(ref-311888-S06476541992009040700000) or «Crankshaft Position (CKP) Sensor»(ref-311889) article. Reconnect all connectors. CLEAR the DTCs. TEST the system for normal operation. If the concern persists INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test C: DTC P0340, P0341: RIGHT-HAND BANK CAMSHAFT POSITION (CMP) SENSOR
Pinpoint Test C
C1
CHECK THE RIGHT-HAND BANK CMP SENSOR FOR CORRECT INSTALLATION
- Turn the ignition switch to the OFF position.
- Check the CMP sensor for correct installation.
Is the CMP sensor correctly installed?
YES Go to step 2 . → C2
NO INSTALL the CMP sensor correctly. See «Camshaft Position (CMP) Sensor»(ref-311888-S06476541992009040700000) or «Camshaft Position (CMP) Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation.
C2
CHECK THE RIGHT-HAND BANK CMP SENSOR FOR FOREIGN DEBRIS
- Remove the CMP sensor and inspect for foreign debris.
Is the CMP sensor free of foreign debris?
YES Go to step 3 . → C3
NO CLEAN the sensor and wheel. INSTALL the sensor. See «Camshaft Position (CMP) Sensor»(ref-311888-S06476541992009040700000) or «Camshaft Position (CMP) Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation.
C3
CHECK THE RIGHT-HAND BANK CMP SENSOR SIGNAL WIRE FOR OPEN CIRCUIT
- Disconnect the ECM electrical connector EN16.
- Disconnect the CMP sensor electrical connector EN43.
- Measure the resistance between the CMP sensor electrical connector EN43, pin 1 (O) and the ECM electrical connector EN16, pin 94 (O).
Is the resistance less than 5 ohms?
YES Go to step 4 . → C4
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
C4
CHECK THE RIGHT-HAND BANK CMP GROUND WIRE FOR OPEN CIRCUIT
- Measure the resistance between the CMP sensor electrical connector EN43, pin 2 (B) and the ECM electrical connector EN16, pin 95 (B).
Is the resistance less than 5 ohms?
YES Go to step 5 . → C5
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
C5
CHECK THE RIGHT-HAND BANK CMP SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between the CMP sensor electrical connector EN43, pin 1 (O) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 6 . → 6
C6
CHECK THE RIGHT-HAND BANK CMP SENSOR GROUND CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between the CMP sensor electrical connector EN43, pin 2 (B) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 7 . → 7
C7
CHECK THE RIGHT-HAND BANK CMP SENSOR SIGNAL CIRCUIT FOR A SHORT TO BATTERY
- Turn the ignition switch to the ON position.
- Measure the voltage between the CMP sensor electrical connector EN43, pin 1 (O) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 8 . → 8
C8
CHECK THE RIGHT-HAND BANK CMP SENSOR GROUND CIRCUIT FOR A SHORT TO BATTERY
- Turn the ignition switch to the ON position.
- Measure the voltage between the CMP sensor electrical connector EN43, pin 2 (B) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new CMP sensor. See «Camshaft Position (CMP) Sensor»(ref-311888-S06476541992009040700000) or «Camshaft Position (CMP) Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test D: DTC P1340, P1341: LEFT-HAND BANK CAMSHAFT POSITION (CMP) SENSOR
Pinpoint Test D
D1
CHECK THE LEFT-HAND BANK CMP SENSOR FOR CORRECT INSTALLATION
- Turn the ignition switch to the OFF position.
- Check the CMP sensor for correct installation.
Is the CMP sensor correctly installed?
YES Go to step 2 . → D2
NO INSTALL the CMP sensor correctly. See «Camshaft Position (CMP) Sensor»(ref-311888-S06476541992009040700000) or «Camshaft Position (CMP) Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation.
D2
CHECK THE LEFT-HAND BANK CMP SENSOR FOR FOREIGN DEBRIS
- Remove the CMP sensor and inspect for foreign debris.
Is the CMP sensor free of foreign debris?
YES Go to step 3 . → D3
NO CLEAN the sensor and wheel. INSTALL the sensor. See «Camshaft Position (CMP) Sensor»(ref-311888-S06476541992009040700000) or «Camshaft Position (CMP) Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation.
D3
CHECK THE LEFT-HAND BANK CMP SENSOR SIGNAL WIRE FOR OPEN CIRCUIT
- Disconnect the ECM electrical connector EN16.
- Disconnect the CMP sensor electrical connector EN33.
- Measure the resistance between the CMP sensor electrical connector EN33, pin 1 (G) and the ECM electrical connector EN16, pin 68 (G).
Is the resistance less than 5 ohms?
YES Go to step 4 . → D4
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
D4
CHECK THE LEFT-HAND BANK CMP GROUND WIRE FOR OPEN CIRCUIT
- Measure the resistance between the CMP sensor electrical connector EN33, pin 2 (N) and the ECM electrical connector EN16, pin 69 (N).
Is the resistance less than 5 ohms?
YES Go to step 5 . → D5
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
D5
CHECK THE LEFT-HAND BANK CMP SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between the CMP sensor electrical connector EN33, pin 1 (G) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 6 . → 6
D6
CHECK THE LEFT-HAND BANK CMP SENSOR GROUND CIRCUIT FOR A SHORT TO GROUND
- Disconnect the ECM electrical connector, EN16.
- Measure the resistance between the CMP sensor electrical connector EN33, pin 2 (N) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 7 . → 7
D7
CHECK THE LEFT-HAND BANK CMP SENSOR SIGNAL CIRCUIT FOR A SHORT TO BATTERY
- Turn the ignition switch to the ON position.
- Measure the voltage between the CMP sensor electrical connector EN33, pin 1 (G) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 8 . → 8
D8
CHECK THE LEFT-HAND BANK CMP SENSOR GROUND CIRCUIT FOR A SHORT TO BATTERY
- Turn the ignition switch to the ON position.
- Measure the voltage between the CMP sensor electrical connector EN33, pin 2 (N) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new CMP sensor. See «Camshaft Position (CMP) Sensor»(ref-311888-S06476541992009040700000) or «Camshaft Position (CMP) Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test E: DTC P0031, P0032. RIGHT-HAND BANK HO2S HEATER
Pinpoint Test E
E1
CHECK THE POWER SUPPLY CIRCUIT TO THE RIGHT-HAND BANK HO2S HEATER
- Disconnect HO2S sensor electrical connector, EN37.
- Turn the ignition switch to the ON position.
- Measure the voltage between the HO2S electrical connector EN37, pin 2 (WG) and GROUND.
Is the voltage less than 10 volts?
E2
CHECK THE GROUND CIRCUIT TO THE RIGHT-HAND BANK HO2S HEATER FOR OPEN CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the HO2S electrical connector EN37, pin 1 (RU) and the ECM electrical connector EN16, pin 1 and pin 2 (RU).
Is the resistance of each wire less than 5 ohms?
YES Go to step 3 . → E3
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
E3
CHECK THE RIGHT-HAND BANK HO2S GROUND CIRCUIT FOR SHORT TO GROUND
- Measure the resistance between the bank 1 HO2S electrical connector EN37, pin 1 (RU) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 4 . → 4
E4
CHECK THE RIGHT-HAND BANK HO2S GROUND CIRCUIT FOR SHORT TO BATTERY
- Check for a voltage between the HO2S electrical connector EN37, pin 1 (RU) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new HO2S. See «Heated Oxygen Sensor (HO2S) RH»(ref-311888-S06476541992009040700000) or «Heated Oxygen Sensor (HO2S) RH»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
E5
CHECK FUSE 38 OF THE ENGINE COMPARTMENT FUSE BOX
- Check the fuse.
Is the fuse OK?
E6
CHECK FUSE 38 OF THE ENGINE COMPARTMENT FUSE BOX FOR A SHORT TO GROUND
- Measure the resistance between electrical connector JB34 pin 97 of the engine compartment fuse box and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR short to ground between the engine compartment fuse box and the right-hand bank HO2S. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new fuse. CLEAR the DTC. TEST the system for normal operation.
E7
CHECK THE POWER SUPPLY TO FUSE 38 IN THE ENGINE COMPARTMENT FUSE BOX
- Turn the ignition switch to the ON position.
- Measure the voltage between electrical connector JB34 pin 131 and GROUND.
Is the voltage less than 10 volts?
YES Repair the circuit between the battery and the EMS relay. Test the relay, renew as necessary. CLEAR the DTC. TEST the system for normal operation.
NO Repair the circuit from the ECM control relay to the engine compartment fuse box. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. Go to step 1 . CLEAR the DTC. TEST the system for normal operation. → 1
Pinpoint Test F: DTC P0181, P0182, P0183. FUEL TEMPERATURE SENSOR
Pinpoint Test F
F1
CHECK CONTINUITY OF THE FUEL TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the fuel temperature sensor electrical connector IJ8.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the fuel temperature sensor electrical connector IJ8, pin 2 (WU) and the ECM electrical connector EN16, pin 50 (WU).
Is the resistance less than 5 ohms?
YES Go to step 2 . → F2
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
F2
CHECK THE FUEL TEMPERATURE SENSOR GROUND CIRCUIT
- Measure the resistance between the fuel temperature sensor electrical connector IJ8 pin 1 (NU) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 3 . → F3
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
F3
CHECK THE FUEL TEMPERATURE SENSOR CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between the fuel temperature sensor electrical connector IJ8 pin 2 (WU) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 4 . → 4
F4
CHECK THE FUEL TEMPERATURE SENSOR GROUND CIRCUIT FOR A SHORT TO BATTERY
- Disconnect the FTP sensor electrical connector, FT1.
- Turn the ignition switch to the ON position.
- Check for a voltage between FT1, pin 3 (BG) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 5 . → 5
F5
CHECK THE FUEL TEMPERATURE SENSOR CIRCUIT FOR A SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Measure the voltage between the fuel temperature sensor electrical connector IJ8, pin 2 (WU) and GROUND.
Is the voltage greater than 10 volts?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new fuel temperature sensor. See «Fuel Temperature Sensor»(ref-311888-S06476541992009040700000) or «Fuel Temperature Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test G: DTC P0327, P0328, P0332, P0333, P1648. KNOCK SENSOR (KS)
Pinpoint Test G
G1
CHECK THE KS SIGNAL WIRE FOR OPEN CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the KS sensor electrical connector EN23.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between EN23, pin 1 (N) and EN16, pin 98 (N).
Is the resistance less than 5 ohms?
YES Go to step 2 . → G2
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
G2
CHECK THE KS SIGNAL WIRE FOR SHORT TO BATTERY
- Turn the ignition switch to the ON position.
- Check for a voltage between EN23, pin 1 (N) and GROUND.
Is a voltage present?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 3 . → 3
G3
CHECK THE KS SIGNAL WIRE FOR A SHORT TO GROUND
- Measure the resistance between the KS sensor electrical connector EN23, pin 1 (N) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new KS. See «Knock Sensor (KS)»(ref-311888-S06476541992009040700000) . or «Knock Sensor (KS)»(ref-311889) article. CLEAR DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
G4
CHECK THE KS GROUND CIRCUIT FOR OPEN CIRCUIT
- Measure the resistance between the KS electrical connector EN23 pin 2 (W) and GROUND.
Is the resistance greater than 5 ohms?
YES REPAIR the circuit between EN23, pin 2 (W) and GROUND. CLEAR the DTCs. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
NO Go to step 5 . → 5
G5
CHECK THE KS GROUND LEAD FOR OPEN CIRCUIT
- Disconnect the KS electrical connector, EN23.
- Disconnect the ECM electrical connector, EN16.
- Measure the resistance between EN23, pin2 (W) and EN16, pin 100 (BG).
Is the resistance less than 5 ohms?
YES Go to step 6 . → G6
NO REPAIR the circuit between EN23, pin2 (W) and EN16, pin 100 (BG). For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
G6
CHECK THE KS GROUND LEAD FOR SHORT TO BATTERY
- Connect the KS sensor electrical connector EN23.
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Check for a voltage between EN23, pin 2 (W) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new KS. See «Knock Sensor (KS)»(ref-311888-S06476541992009040700000) or «Knock Sensor (KS)»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test H: DTC P0196, P0197, P0198. OIL TEMPERATURE SENSOR
Pinpoint Test H
H1
CHECK THE OIL TEMPERATURE SENSOR SIGNAL WIRE FOR OPEN CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the oil temperature sensor electrical connector EN25.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the oil temperature sensor electrical connector EN25, pin 1 (Y) and the ECM electrical connector EN16, pin 78 (Y).
Is the resistance less than 5 ohms?
YES Go to step 2 . → H2
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
H2
CHECK THE OIL TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT
- Measure the resistance between the oil temperature sensor electrical connector EN25, pin 2 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 3 . → H3
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
H3
CHECK THE OIL TEMPERATURE SENSOR GROUND CIRCUIT FOR SHORT TO BATTERY
- Connect ECM electrical connector, EN16.
- Turn the ignition switch to the ON position.
- Measure the voltage between the oil temperature sensor electrical connector EN25, pin 2 (BG) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 4 . → 4
H4
CHECK THE OIL TEMPERATURE SENSOR CIRCUIT FOR A SHORT TO GROUND
- Turn the ignition switch to the OFF position.
- Disconnect ECM electrical connector, EN16.
- Measure the resistance between the oil temperature sensor electrical connector EN25, pin 1 (Y) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 5 . → 5
H5
CHECK THE OIL TEMPERATURE SENSOR CIRCUIT FOR A SHORT TO BATTERY
- Connect ECM electrical connector, EN16.
- Turn the ignition switch to the ON position.
- Measure the voltage between the oil temperature sensor electrical connector EN25, pin 1 (Y) and GROUND.
Is the voltage greater than 10 volts?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new oil temperature sensor. See «Oil Temperature Sensor»(ref-311888-S06476541992009040700000) or «Oil Temperature Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test I: DTC P0131, P0132, P0133, P1646. RIGHT-HAND BANK HO2S
Pinpoint Test I
I1
CHECK THE CONSTANT CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR OPEN CIRCUIT
- Disconnect the HO2S electrical connector EN37.
- Disconnect the ECM electrical connector, EN16.
- Measure the resistance between EN16, pin 84 (P) and EN37, pin 4 (P).
Is the resistance less than 5 ohms?
YES Go to step 2 . → I2
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
I2
CHECK THE CONSTANT CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR SHORT TO GROUND
- Measure the resistance between EN16, pin 84 (P) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 3 . → 3
I3
CHECK THE CONSTANT CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Measure the voltage between EN37, pin 4 (P) and GROUND.
Is the voltage greater than 5 volts?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 4 . → 4
I4
CHECK THE VARIABLE CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR OPEN CIRCUIT
- Disconnect the ECM electrical connector, EN16.
- Measure the resistance between EN16, pin 83 (Y) and EN37, pin 3 (Y).
Is the resistance less than 5 ohms?
YES Go to step 5 . → I5
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
I5
CHECK THE VARIABLE CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR SHORT TO GROUND
- Measure the resistance between EN16, pin 83 (Y) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 6 . → 6
I6
CHECK THE VARIABLE CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Measure the voltage between EN37, pin 3 (Y) and GROUND.
Is the voltage greater than 5 volts?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new HO2S. See «Heated Oxygen Sensor (HO2S) RH»(ref-311888-S06476541992009040700000) or «Heated Oxygen Sensor (HO2S) RH»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test J: DTC P0037, P0038, P0137, P0138, P0140. RIGHT-HAND BANK CATALYST MONITOR
Pinpoint Test J
J1
CHECK THE POWER SUPPLY CIRCUIT TO THE RIGHT-HAND BANK CATALYST MONITOR HEATER
- Turn the ignition switch to the OFF position.
- Disconnect the catalyst monitor sensor electrical connector EN14.
- Turn the ignition switch to the ON position.
- Measure the voltage between the catalyst monitor sensor electrical connector EN14, pin 2 (WG) and GROUND.
Is the voltage less than 10 volts?
J2
CHECK CONTINUITY OF THE RIGHT-HAND BANK CATALYST MONITOR SENSOR GROUND CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the catalyst monitor sensor electrical connector EN14, pin 3 (W) and the ECM electrical connector EN16, pin 130.
Is the resistance less than 5 ohms?
YES Go to step 3 . → J3
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
J3
CHECK CONTINUITY OF THE POWER SUPPLY WIRE TO THE RIGHT-HAND BANK CATALYST MONITOR SENSOR
- Measure the resistance between the RH bank catalyst monitor sensor electrical connector EN14, pin 4 (N) and the ECM electrical connector EN16, pin 128 (N).
Is the resistance less than 5 ohms?
YES Go to step 4 . → J4
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
J4
CHECK THE RIGHT-HAND BANK CATALYST MONITOR SENSOR POWER SUPPLY WIRE FOR A SHORT TO GROUND
- Measure the resistance between the catalyst monitor sensor electrical connector EN14, pin 4 (N) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to ground. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 5 . → 5
J5
CHECK THE RIGHT-HAND BANK CATALYST MONITOR SENSOR POWER SUPPLY WIRE FOR A SHORT TO BATTERY
- Measure the voltage between the catalyst monitor sensor electrical connector EN14, pin 4 (N) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new RH bank catalyst monitor sensor. For additional information, See «Catalyst Monitor Sensor RH»(ref-311888-S06476541992009040700000) or «Catalyst Monitor Sensor RH»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. For additional information, See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
J6
CHECK THE RIGHT-HAND BANK CATALYST MONITOR SENSOR POWER SUPPLY CIRCUIT
- Measure the voltage between the catalyst monitor sensor electrical connector EN14 pin 2 (WG) and GROUND.
Is the voltage less than 10 volts?
J7
CHECK CONTINUITY OF THE RIGHT-HAND BANK CATALYST MONITOR SENSOR HEATER GROUND CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the catalyst monitor sensor electrical connector EN14, pin 1 (U) and the ECM electrical connector EN16, pin 92 (U).
Is the resistance less than 5 ohms?
YES INSTALL a new ECM. For additional information, See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing a ECM, contact Dealer technical support.
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
J8
CHECK FUSE 38 OF THE ENGINE COMPARTMENT FUSE BOX
- Check the fuse.
Is the fuse OK?
J9
CHECK FUSE 38 OF THE ENGINE COMPARTMENT FUSE BOX FOR A SHORT TO GROUND
- Measure the resistance between electrical connector JB34, pin 97 of the engine compartment fuse box and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR short to ground between the engine compartment fuse box and the right-hand bank HO2S. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new fuse. Check the circuit for cause of fuse failure. CLEAR the DTC. TEST the system for normal operation.
J10
CHECK THE POWER SUPPLY TO FUSE 38 IN THE ENGINE COMPARTMENT FUSE BOX
- Measure the voltage between fuse 38 electrical connector JB34 pin 97 and GROUND.
Is the voltage less than 10 volts?
YES Repair the circuit from the ECM control relay to the engine compartment fuse box. CLEAR the DTC. TEST the system for normal operation.
NO Repair the circuit between the engine compartment fuse box and the HO2S. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test K: P0151, P0152, P0153, P1647. LEFT-HAND BANK HO2S
Pinpoint Test K
K1
CHECK THE CONSTANT CIRCUIT OF THE LEFT-HAND BANK HO2S FOR OPEN CIRCUIT
- Disconnect the HO2S electrical connector EN32.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between EN16, pin 108 (P) and EN32, pin 4 (P)
Is the resistance less than 5 ohms?
YES Go to step 2 . → K2
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
K2
CHECK THE CONSTANT CIRCUIT OF THE LEFT-HAND BANK HO2S FOR SHORT TO GROUND
- Measure the resistance between EN16, pin 108 (P) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 3 . → 3
K3
CHECK THE CONSTANT CIRCUIT OF THE LEFT-HAND BANK HO2S FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Measure the voltage between EN32, pin 4 (P) and GROUND.
Is the voltage greater than 5 volts?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 4 . → 4
K4
CHECK THE VARIABLE CIRCUIT OF THE LEFT-HAND BANK HO2S FOR OPEN CIRCUIT
- Disconnect the HO2S electrical connector EN32.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between EN16, pin 107 (Y) and EN32, pin 3 (Y)
Is the resistance less than 5 ohms?
YES Go to step 5 . → K5
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
K5
CHECK THE VARIABLE CIRCUIT OF THE LEFT-HAND BANK HO2S FOR SHORT TO GROUND
- Measure the resistance between EN16, pin 107 (Y) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 6 . → 6
K6
CHECK THE VARIABLE CIRCUIT OF THE LEFT-HAND BANK HO2S FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Measure the voltage between EN32 pin 3 (Y) and GROUND.
Is the voltage greater than 5 volts?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new left-hand HO2S. See «Heated Oxygen Sensor (HO2S) LH»(ref-311888-S06476541992009040700000) or «Heated Oxygen Sensor (HO2S) LH»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test L: DTC P0057, P0058, P0157, P0158, P0160. LEFT-HAND BANK CATALYST MONITOR
Pinpoint Test L
L1
CHECK THE POWER SUPPLY CIRCUIT TO THE LEFT-HAND BANK CATALYST MONITOR HEATER
- Turn the ignition switch to the OFF position.
- Disconnect the catalyst monitor sensor electrical connector EN9.
- Turn the ignition switch to the ON position.
- Measure the voltage between the catalyst monitor sensor electrical connector EN9 pin 2 (WR) and GROUND.
Is the voltage less than 10 volts?
L2
CHECK CONTINUITY OF THE LEFT-HAND BANK CATALYST MONITOR SENSOR GROUND CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the catalyst monitor sensor electrical connector EN9 pin 3 (W) and EN16, pin 130.
Is the resistance less than 5 ohms?
YES Go to step 3 . → L3
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
L3
CHECK CONTINUITY OF THE POWER SUPPLY WIRE TO THE LEFT-HAND BANK CATALYST MONITOR SENSOR
- Measure the resistance between the catalyst monitor sensor electrical connector EN9 pin 4 (N) and the ECM electrical connector EN16 pin 129 (N).
Is the resistance less than 5 ohms?
YES Go to step 4 . → L4
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
L4
CHECK THE LEFT-HAND BANK CATALYST MONITOR SENSOR POWER SUPPLY WIRE FOR A SHORT TO GROUND
- Measure the resistance between the catalyst monitor sensor electrical connector EN9 pin 4 (N) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to ground. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 5 . → 5
L5
CHECK THE LEFT-HAND BANK CATALYST MONITOR SENSOR POWER SUPPLY WIRE FOR A SHORT TO BATTERY
- Measure the voltage between the catalyst monitor sensor electrical connector EN9 pin 4 (N) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new left-hand bank catalyst monitor sensor. For additional information, See «Catalyst Monitor Sensor LH»(ref-311888-S06476541992009040700000) or «Catalyst Monitor Sensor LH»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. For additional information, See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
L6
CHECK THE LEFT-HAND BANK CATALYST MONITOR SENSOR POWER SUPPLY CIRCUIT
- Measure the voltage between the catalyst monitor sensor electrical connector EN9 pin 2 (WR) and GROUND.
Is the voltage less than 10 volts?
L7
CHECK CONTINUITY OF THE LEFT-HAND BANK CATALYST MONITOR SENSOR HEATER GROUND CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the catalyst monitor sensor electrical connector EN9 pin 1 (UY) and the ECM electrical connector EN16 pin 93 (UY).
Is the resistance less than 5 ohms?
YES INSTALL a new ECM. For additional information, See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
L8
CHECK FUSE 42 OF THE ENGINE COMPARTMENT FUSE BOX
- Check the fuse.
Is the fuse OK?
L9
CHECK FUSE 42 OF THE ENGINE COMPARTMENT FUSE BOX FOR A SHORT TO GROUND
- Measure the resistance between electrical connector JB34 pin 105 of the engine compartment fuse box and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR short to ground between the engine compartment fuse box and the left-hand bank HO2S. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new fuse. Check the circuit for cause of fuse failure. CLEAR the DTC. TEST the system for normal operation.
L10
CHECK THE POWER SUPPLY TO FUSE 42 IN THE ENGINE COMPARTMENT FUSE BOX
- Measure the voltage between Fuse 42 electrical connector JB34 pin 105 and GROUND.
Is the voltage less than 10 volts?
YES Repair the circuit from the ECM control relay to the engine compartment fuse box. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Repair the circuit between the engine compartment fuse box and the HO2S. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS.
Pinpoint Test M: DTC P0101, P0102, P0103, P1104. MASS AIR FLOW SENSOR (MAF)
Pinpoint Test M
M1
CHECK THE MAF SENSOR POWER SUPPLY
- Turn the ignition switch to the OFF position.
- Disconnect the MAF sensor electrical connector EN6.
- Turn the ignition switch to the ON position.
- Measure the voltage between the MAF sensor electrical connector EN6 pin 1 (GU) and GROUND.
Is the voltage less than 10 volts?
M2
CHECK CONTINUITY OF THE MAF SENSOR GROUND CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the MAF sensor electrical connector EN6 pin 3 (GW) and the ECM electrical connector EN16 pin 44 (GW).
Is the resistance less than 5 ohms?
YES Go to step 3 . → M3
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
M3
CHECK CONTINUITY OF THE MAF SENSOR GROUND CIRCUIT
- Measure the resistance between the MAF sensor electrical connector EN6 pin 2 (BW) and the ECM electrical connector EN16 pin 45 and pin 46 (BW).
Is the resistance less than 5 ohms?
YES Go to step 4 . → M4
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
M4
CHECK THE MAF SENSOR CIRCUIT FOR SHORT TO GROUND
- Measure the resistance between the MAF sensor electrical connector EN6 pin 3 (GW) and GROUND.
Is the resistance greater than 10,000 ohms?
YES INSTALL a new MAF sensor. For additional information, See «Mass Air Flow (MAF) Sensor»(ref-311888-S06476541992009040700000) or «Mass Air Flow (MAF) Sensor»(ref-311889) article. CLEAR DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. For additional information, See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
NO REPAIR the short to ground. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
M5
CHECK FUSE 36 OF THE ENGINE COMPARTMENT FUSE BOX
- Check the fuse.
Is the fuse OK?
M6
CHECK FUSE 36 OF THE ENGINE COMPARTMENT FUSE BOX FOR A SHORT TO GROUND
- Measure the resistance between electrical connector JB34 pin 93 of the engine compartment fuse box and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR short to ground between the engine compartment fuse box and the MAF sensor. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new fuse. Check the circuit for cause of fuse failure. CLEAR the DTC. TEST the system for normal operation.
M7
CHECK THE POWER SUPPLY FROM FUSE 36 IN THE ENGINE COMPARTMENT FUSE BOX TO THE MAF SENSOR
- Measure the voltage between the engine compartment fuse box electrical connector JB34 pin 93 and GROUND.
Is the voltage less than 10 volts?
YES Repair the circuit from the engine compartment fuse box to the MAF sensor. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Recheck DTCs.
Pinpoint Test N: P0111, P0112, P0113. IAT SENSOR
Pinpoint Test N
N1
CHECK CONTINUITY OF THE INTAKE AIR TEMPERATURE (IAT) SENSOR POWER SUPPLY CIRCUIT
- Turn the ignition switch to the OFF position.
- Disconnect the MAF sensor electrical connector EN6.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the MAF sensor electrical connector EN6 pin 4 (O) and the ECM electrical connector EN16, pin 71 (O).
Is the resistance less than 5 ohms?
YES Go to step 2 . → N2
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
N2
CHECK CONTINUITY OF THE IAT SENSOR CIRCUIT
- Measure the resistance between the MAF sensor electrical connector EN6 pin 5 (BG) and the ECM electrical connector EN16, pin 19 (BG).
Is the resistance less than 5 ohms?
YES Go to step 4 . → N4
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
N3
CHECK THE IAT SENSOR CIRCUIT FOR SHORT TO BATTERY
- Turn the ignition switch to the OFF position.
- Disconnect the MAF sensor electrical connector EN6.
- Check for a voltage between EN6 pin 5 (BG) and GROUND.
Is the voltage greater than 1 volt?
YES Go to step 1 . → N1
NO INSTALL a new MAF sensor. See «Mass Air Flow (MAF) Sensor»(ref-311888-S06476541992009040700000) or «Mass Air Flow (MAF) Sensor»(ref-311889) article. CLEAR the DTC. TEST the system for normal operation.
N4
CHECK THE IAT SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND
- Measure the resistance between the MAF sensor electrical connector EN6 pin 4 (O) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO Go to step 5 . → 5
N5
CHECK THE IAT SENSOR GROUND CIRCUIT FOR SHORT TO BATTERY
- Connect the ECM electrical connector, EN16.
- Turn the ignition switch to the ON position.
- Check for voltage at EN6 pin 5 (BG)
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new MAF sensor. See «Mass Air Flow (MAF) Sensor»(ref-311888-S06476541992009040700000) or «Mass Air Flow (MAF) Sensor»(ref-311889) article. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test O: DTC P0051, P0052. LEFT-HAND BANK H02S HEATER
Pinpoint Test O
O1
CHECK THE POWER SUPPLY CIRCUIT TO THE LEFT-HAND BANK HO2S HEATER
- Turn the ignition switch to the ON position.
- Measure the voltage between the HO2S electrical connector EN32 pin 2 (WR) and GROUND.
Is the voltage less than 10 volts?
O2
CHECK THE GROUND CIRCUIT TO THE LEFT-HAND BANK HO2S HEATER
- Turn the ignition switch to the OFF position.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the HO2S electrical connector EN32 pin 1 (GO) and the ECM electrical connector EN16 pins 55 and 56 (GO).
Is the resistance of each wire less than 5 ohms?
YES Go to step 3 . → O3
NO REPAIR the circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
O3
CHECK THE LEFT-HAND BANK HO2S CIRCUIT FOR SHORT TO GROUND
- Measure the resistance between the HO2S electrical connector EN32 pin 1 (GO) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to ground. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTCs. TEST the system for normal operation.
NO INSTALL a new left-hand bank HO2S. For additional information, See «Heated Oxygen Sensor (HO2S) LH»(ref-311888-S06476541992009040700000) or «Heated Oxygen Sensor (HO2S) LH»(ref-311889) article. CLEAR DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. For additional information, See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
O4
CHECK FUSE 42 OF THE ENGINE COMPARTMENT FUSE BOX
- Check the fuse.
Is the fuse OK?
O5
CHECK FUSE 42 OF THE ENGINE COMPARTMENT FUSE BOX FOR A SHORT TO GROUND
- Measure the resistance between electrical connector JB34 pin 105 of the engine compartment fuse box and GROUND
Is the resistance less than 10,000 ohms?
YES REPAIR short to ground between the engine compartment fuse box and the left-hand bank HO2S. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new fuse. Check the circuit for cause of fuse failure. CLEAR the DTC. TEST the system for normal operation.
O6
CHECK THE POWER SUPPLY TO FUSE 42 IN THE ENGINE COMPARTMENT FUSE BOX
- Measure the voltage between fuse 42, electrical connector JB34 pin 105 and GROUND.
Is the voltage less than 10 volts?
YES Repair the circuit from the ECM control relay to the engine compartment fuse box. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Repair the circuit between the engine compartment fuse box and the HO2S. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test P: DTC P1606. ECM RELAY.
Pinpoint Test P
P1
CHECK THE ECM CONTROL RELAY
- Turn the ignition switch to the ON position.
Does the ECM relay make an audible click?
P2
CHECK FOR POWER SUPPLY FROM THE ECM CONTROL RELAY
- Measure the voltage between the ECM control relay JB34 pin 131 and GROUND.
Is the voltage less than 10 volts?
YES Go to step 3 . → P3
NO REPAIR the circuit from the ECM control relay to the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
P3
CHECK FUSE 9 IN THE ENGINE COMPARTMENT FUSE BOX
- Check the fuse.
Is the fuse OK?
YES Go to step 4 . → P4
NO INSTALL a new fuse. Check the circuit for cause of fuse failure. CLEAR the DTC. TEST the system for normal operation.
P4
CHECK THE POWER SUPPLY TO FUSE 9 IN THE ENGINE COMPARTMENT FUSE BOX
- Measure the voltage between Fuse 9 electrical connector JB34 pin 75 and GROUND.
Is the voltage less than 10 volts?
YES Repair the circuit from the battery positive to the engine compartment fuse box. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 5 . → 5
P5
CHECK THE POWER SUPPLY FROM FUSE 9 IN THE ENGINE COMPARTMENT FUSE BOX TO THE ECM CONTROL RELAY
- Measure the voltage between the ECM control relay electrical connector JB34 pin 132 and GROUND.
Is the voltage less than 10 volts?
YES Repair the circuit from the engine compartment fuse box to the ECM control relay. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new ECM control relay. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
P6
CHECK FUSE 31 OF THE ENGINE COMPARTMENT FUSE BOX
- Check the fuse.
Is the fuse OK?
P7
CHECK POWER SUPPLY TO THE ECM CONTROL RELAY FROM FUSE 31 OF THE ENGINE COMPARTMENT FUSE BOX
- Measure the voltage between ECM relay electrical connector JB34 pin 133 and GROUND.
Is the voltage less than 10 volts?
P8
CHECK CONTINUITY OF THE ECM CONTROL RELAY GROUND CIRCUIT
- Disconnect the ECM electrical connector EN16.
- Remove the ECM control relay from the engine compartment fuse box.
- Measure the resistance between the ECM electrical connector EN16 pin 40 and JB34 pin 134 of the engine compartment fuse box.
Is the resistance less than 5 ohms?
YES Go to step 9 . → P9
NO REPAIR the circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. This circuit includes the power distribution fuse box and the EMS relay and diode
P9
CHECK CONTINUITY OF THE ECM CONTROL RELAY WINDING
- Measure the resistance of the ECM control relay winding between pins 1 and 2 of the ECM control relay.
Is the resistance less than 60 ohms?
YES INSTALL a new ECM control relay. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support. CLEAR the DTC. TEST the system for normal operation.
P10
CHECK FUSE 31 OF THE ENGINE COMPARTMENT FUSE BOX FOR A SHORT TO GROUND
- Measure the resistance between electrical connector JB34 pin 83 of the engine compartment fuse box and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR short to GROUND between the engine compartment fuse box and the ECM control relay. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new fuse. CLEAR the DTC. TEST the system for normal operation.
P11
CHECK FUSE 9 OF THE ENGINE COMPARTMENT FUSE BOX FOR A SHORT TO GROUND
- Measure the resistance between electrical connector JB34 pin 132 of the engine compartment fuse box and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR short to ground between the engine compartment fuse box and the ECM control relay. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new fuse. CLEAR the DTC. TEST the system for normal operation.
P12
CHECK THE ECM CONTROL RELAY DIODE
- Remove the ECM control relay diode from the engine compartment fuse box.
- Measure the continuity of ECM control relay diode.
Is the resistance less than 5 ohms?
YES Possible intermittent fault. Recheck DTCs.
NO INSTALL a new ECM control relay diode. Make sure that the ECM control relay diode is installed correctly. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test Q: P0105, P0106, P0107, P0108, P1107, P1108. MAP SENSOR
Pinpoint Test Q
Q1
CHECK THE GROUND CIRCUIT TO THE MAP SENSOR
- Disconnect the MAP sensor electrical connector EN8.
- Measure the resistance between the MAP sensor electrical connector EN8 pin 4 (BG) and GROUND.
Q2
Is the resistance less than 5 ohms?
Is the resistance less than 5 ohms?
YES Go to step 3 . → Q3
NO REPAIR the circuit between the MAP sensor and GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
Q3
CHECK THE POWER SUPPLY CIRCUIT TO THE MAP SENSOR FOR SHORT TO BATTERY
- Turn the ignition switch to the ON position.
- Measure the voltage between the MAP sensor electrical connector EN8 pin 2 (OY) and GROUND.
Is the voltage greater than 6 volts?
YES REPAIR the short to battery. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 4 . → 4
Q4
CHECK THE POWER SUPPLY CIRCUIT TO THE MAP SENSOR FOR SHORT TO GROUND
- Turn the ignition switch to the ON position.
- Measure the voltage between the MAP sensor electrical connector EN8 pin 2 (OY) and GROUND.
Is the voltage less than 4 volts?
YES REPAIR the short to GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 5 . → 5
Q5
CHECK CONTINUITY OF THE MAP SENSOR SIGNAL WIRE
- Turn the ignition switch to the OFF position.
- Disconnect the MAP sensor electrical connector EN8.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance of the circuit between MAP sensor electrical connector EN8 pin 1 (BW) and ECM electrical connector EN16 pin 127 (BW).
Is the resistance less than 5 ohms?
YES Go to step 6 . → Q6
NO REPAIR the circuit between the MAP sensor electrical connector EN8 pin 1 (BW) and ECM electrical connector EN16 pin 127 (BW). For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
Q6
CHECK THE MAP SENSOR SIGNAL WIRE FOR SHORT TO GROUND
- Disconnect the ECM electrical connector EN16.
- Disconnect the MAP sensor electrical connector EN8.
- Measure the resistance between EN8 pin 1 (BW) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. The fault could be in any of the components or sensors in the 5 volt supply circuit, or the ECM
NO Go to step 7 . → 7
Q7
CHECK THE MAP SENSOR SIGNAL WIRE FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Check for a voltage at EN8 pin 1 (BW)
Is the voltage greater than 10 volts?
YES Repair the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. The fault could be in any of the components or sensors in the 5 volt supply circuit, or the ECM
NO INSTALL a new MAP sensor. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test R: P0010, P1384. VVT RIGHT-HAND BANK
Pinpoint Test R
R1
CHECK THE GROUND CIRCUIT TO THE RIGHT-HAND BANK VVT SOLENOID
- Disconnect the VVT solenoid electrical connector EN61.
- Measure the resistance between the VVT solenoid electrical connector EN61 pin 2 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 2 . → R2
NO REPAIR the circuit between VVT solenoid electrical connector EN61 pin 2 (BG) and GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
R2
CHECK CONTINUITY OF THE RIGHT-HAND BANK VVT SOLENOID SIGNAL WIRE
- Measure the resistance between VVT solenoid electrical connector EN61 pin 1 (RW) and ECM electrical connector EN16 pin 109 (RW).
Is the resistance less than 5 ohms?
YES Go to step 3 . → R3
NO REPAIR the circuit between VVT solenoid electrical connector EN61 pin 1 (RW) and ECM electrical connector EN16 pin 109 (RW). For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
R3
CHECK FOR SHORT TO GROUND AT THE RIGHT-HAND BANK VVT SOLENOID SIGNAL WIRE
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between EN61 pin 1 (RW) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 4 . → 4
R4
CHECK FOR SHORT TO BATTERY AT THE RIGHT-HAND BANK VVT SOLENOID SIGNAL WIRE
- TURN the ignition switch to the ON position.
- Check for a voltage at EN61 pin 1 (RW).
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new right-hand bank VVT solenoid. See «Variable Camshaft Timing (VCT) Oil Control Solenoid»(ref-311888-S06476541992009040700000) or «Variable Camshaft Timing (VCT) Oil Control Solenoid»(ref-311889) article. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test S: P0020, P1396. VVT LEFT-HAND BANK
Pinpoint Test S
S1
CHECK GROUND CIRCUIT TO THE LEFT-HAND BANK VVT SOLENOID
- Disconnect the VVT solenoid electrical connector, EN42.
- Measure the resistance between the VVT solenoid electrical connector EN42 pin 2 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 2 . → S2
NO REPAIR the circuit between VVT solenoid electrical connector EN42 pin 2 (BG) and GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
S2
CHECK CONTINUITY OF THE LEFT-HAND BANK VVT SOLENOID SIGNAL WIRE.
- Measure the resistance between VVT solenoid electrical connector EN42 pin 1 (G) and ECM electrical connector EN16 pin 110 (G).
Is the resistance less than 5 ohms?
YES Go to step 3 . → S3
NO REPAIR the circuit between VVT solenoid electrical connector EN42 pin 1 (G) and ECM electrical connector EN16 pin 110 (G). For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
S3
CHECK FOR SHORT TO GROUND AT THE LEFT-HAND BANK VVT SOLENOID SIGNAL WIRE
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between EN61 pin 1 (RW) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 4 . → 4
S4
CHECK FOR SHORT TO BATTERY AT THE LEFT-HAND BANK VVT SOLENOID SIGNAL WIRE
- TURN the ignition switch to the ON position.
- Check for a voltage at EN61 pin 1 (RW).
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new left-hand bank VVT solenoid. See «Variable Camshaft Timing (VCT) Oil Control Solenoid»(ref-311888-S06476541992009040700000) or «Variable Camshaft Timing (VCT) Oil Control Solenoid»(ref-311889) article. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test T: P1251, P1631, P1657, P1658. THROTTLE MOTOR RELAY
Pinpoint Test T
T1
CHECK THE POWER SUPPLY CIRCUIT TO THE THROTTLE MOTOR RELAY
- Turn the ignition switch to the ON position.
- Measure the voltage between pin 1 of the throttle motor relay base and GROUND.
Is the voltage greater than 10 volts?
YES Go to step 2 . → T2
NO REPAIR the circuit between pin 1 of the throttle motor relay base and the EMS control relay. For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
T2
CHECK CONTINUITY OF THE THROTTLE MOTOR RELAY SIGNAL WIRE
- Turn the ignition switch to the OFF position.
- Measure the resistance between the throttle motor relay base, pin 2 and the ECM electrical connector EN16 pin 52 (GR).
Is the resistance less than 5 ohms?
YES Go to step 3 . → T3
NO REPAIR the circuit between the throttle motor relay base pin 2 and the ECM electrical connector EN16 pin 52 (GR). For additional information, refer to the appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
T3
CHECK THE THROTTLE MOTOR RELAY SIGNAL WIRE FOR SHORT TO BATTERY
- Turn the ignition switch to the OFF position.
- Remove the throttle motor relay.
- Disconnect the ECM electrical connector EN16.
- Check for a voltage between the throttle motor relay base pin 2 and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 4 . → 4
T4
CHECK THE THROTTLE MOTOR RELAY SIGNAL WIRE FOR SHORT TO GROUND
- Measure the resistance between the throttle motor relay base pin 2 and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 5 . → 5
T5
CHECK CONTINUITY OF THE THROTTLE MOTOR RELAY OUTPUT WIRE
- Test for continuity between throttle motor relay base pin 5 and ECM electrical connector EN16 pin 134 (RW).
Is the circuit continuous?
YES INSTALL a new throttle motor relay. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing a ECM, contact Dealer technical support
NO REPAIR the circuit between throttle motor relay base pin 2 and ECM electrical connector EN16 pin 134 (RW). For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
T6
CHECK THE THROTTLE MOTOR RELAY OUTPUT WIRE FOR SHORT TO BATTERY
- Check for a voltage between the throttle motor relay base pin 5 and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short to battery. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 7 . → 7
T7
CHECK THE THROTTLE MOTOR RELAY OUTPUT WIRE FOR SHORT TO GROUND
- Measure the resistance between the throttle motor relay base pin 5 and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new throttle motor relay. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Pinpoint Test X: P1549. IMT VALVE 1
Pinpoint Test X
X1
CHECK THE POWER SUPPLY CIRCUIT TO THE IMT VALVE 1
- Turn the ignition switch to the ON position.
- Measure the voltage between IMT valve 1 electrical connector EN999 pin 1 (NG) and GROUND.
Is the voltage greater than 10 volts?
YES Go to step 2 . → X2
NO REPAIR the circuit between the IMT valve 1 electrical connector EN999 pin 1 (NG) and the Battery power bus 2. CLEAR the DTC. TEST the system for normal operation. This circuit includes the power distribution fuse box and the EMS control relay. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
X2
CHECK CONTINUITY OF THE IMT VALVE 1 SIGNAL WIRE.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the IMT valve 1 electrical connector EN999 pin 2 (OY) and the ECM electrical connector EN16 pin 38 (OY).
Is the resistance less than 5 ohms?
YES Go to step 3 . → X3
NO REPAIR the circuit between the IMT valve 1 electrical connector EN999 pin 2 (OY) and the ECM electrical connector EN16 pin 38 (OY). For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
X3
CHECK IMT VALVE SIGNAL WIRE FOR SHORT TO GROUND
- Measure the resistance between EN999 pin 2 (OY) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 4 . → 4
X4
CHECK IMT VALVE SIGNAL WIRE FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Check for a voltage at EN999 pin 2 (OY).
Is the voltage greater than 10 volts?
YES REPAIR the short to battery. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new IMT valve. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test Y: P1532. IMT VALVE 2
Pinpoint Test Y
Y1
CHECK THE POWER SUPPLY CIRCUIT TO THE IMT VALVE 2
- Turn the ignition switch to the ON position.
- Measure the voltage between IMT valve 2 electrical connector EN998 pin 1 (NG) and GROUND.
Is the voltage greater than 10 volts?
YES Go to step 2 . → Y2
NO REPAIR the circuit between the IMT valve 2 electrical connector EN998 pin 1 (NG) and the Battery power bus 2. CLEAR the DTC. TEST the system for normal operation. This circuit includes the power distribution fuse box and the EMS control relay. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
Y2
CHECK CONTINUITY OF THE IMT VALVE 2 SIGNAL WIRE
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the IMT valve 2 electrical connector EN998 pin 2 (OY) and the ECM electrical connector EN16 pin 39 (OY).
Is the resistance less than 5 ohms?
YES Go to step 3 . → Y3
NO REPAIR the circuit between the IMT valve 2 electrical connector EN998 pin 2 (OY) and the ECM electrical connector EN16 pin 39 (OY). For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
Y3
CHECK IMT VALVE SIGNAL WIRE FOR SHORT TO GROUND
- Measure the resistance between EN998 pin 2 (OY) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short to GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 4 . → 4
Y4
CHECK IMT VALVE SIGNAL WIRE FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Check for a voltage at EN998 pin 2 (OY).
Is the voltage greater than 10 volts?
YES REPAIR the short to battery. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new IMT valve. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support
Pinpoint Test Z: P1582. FLIGHT RECORDER DATA STORED
Pinpoint Test Z
Z1
EXTRACT THE FLIGHT RECORDER DATA
- NOTE: Flight recorder data can only be extracted using the Jaguar approved diagnostic system, where available.
- Connect the Jaguar approved diagnostic system, or code reader.
Is DTC P1582 stored?
YES Refer to dealer technical support for information on extracting data.
NO Test not applicable.
Pinpoint Test AA: P1240, P1241, P1242. SENSOR POWER SUPPLY
Pinpoint Test A
A1
CHECK THE POWER SUPPLY CIRCUIT TO THE IP SENSOR
- Disconnect the IP sensor electrical connector, IJ7.
- Turn the ignition switch to the ON position.
- Measure the voltage between IP sensor electrical connector IJ7 pin 1 (YG) and GROUND.
Is the voltage greater than 4 volts?
YES Go to step 2 . → A2
NO REPAIR the circuit between the IP sensor electrical connector IJ7 pin 1 (YG) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A2
CHECK THE POWER SUPPLY CIRCUIT TO THE IP SENSOR FOR SHORT TO BATTERY
- Measure the voltage between IP sensor electrical connector IJ7 pin 1 (YG) and GROUND.
Is the voltage greater than 6 volts?
YES REPAIR the circuit between the IP sensor electrical connector IJ7 pin 1 (YG) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
NO Go to step 3 . → 3
A3
CHECK THE POWER SUPPLY CIRCUIT TO THE MAP SENSOR
- Disconnect the MAP sensor electrical connector EN8.
- Turn the ignition switch to the ON position.
- Measure the voltage between MAP sensor electrical connector EN8 pin 2 (OY) and GROUND.
Is the voltage greater than 4 volts?
YES Go to step 4 . → A4
NO REPAIR the circuit between the MAP sensor electrical connector EN8 pin 2 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A4
CHECK THE POWER SUPPLY CIRCUIT TO THE MAP SENSOR FOR SHORT TO BATTERY
- Measure the voltage between MAP sensor electrical connector EN8 pin 2 (OY) and GROUND.
Is the voltage greater than 6 volts?
YES REPAIR the circuit between the MAP sensor electrical connector EN8 pin 2 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
NO Go to step 5 . → 5
A5
CHECK THE POWER SUPPLY CIRCUIT TO THE FTP SENSOR
- NOTE: Access to the FTP sensor involves the removal of the fuel tank. To reduce the amount of work necessary, a slave harness could be used. This can be connected at the access port beneath the rear seat. Tests can then be carried out via the slave harness and sensor. If system operation is normal with the slave harness and sensor, the fault lies in the vehicle's harness or sensor.
- Disconnect the FTP sensor electrical connector FT1. (See note above).
- Turn the ignition switch to the ON position.
- Measure the voltage between FTP sensor electrical connector FT1 pin 1 (OY) and GROUND.
Is the voltage greater than 4 volts?
YES Go to step 6 . → A6
NO REPAIR the circuit between the FTP sensor electrical connector FT1 pin 1 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A6
CHECK THE POWER SUPPLY CIRCUIT TO THE FTP SENSOR FOR SHORT TO BATTERY
- Measure the voltage between FTP sensor electrical connector FT1 pin 1 (OY) and GROUND.
Is the voltage greater than 6 volts?
YES REPAIR the circuit between the FTP sensor electrical connector FT1 pin 1 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
NO Go to step 7 . → 7
A7
CHECK THE POWER SUPPLY CIRCUIT TO THE APP SENSOR
- Disconnect the APP sensor electrical connector.
- Turn the ignition switch to the ON position.
- Measure the voltage between APP sensor electrical connector PA1 pin 5 (OY) and GROUND.
Is the voltage greater than 4 volts?
YES Go to step 8 . → A8
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 5 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A8
CHECK THE POWER SUPPLY CIRCUIT TO THE APP SENSOR FOR SHORT TO BATTERY
- Measure the voltage between APP sensor electrical connector PA1 pin 5 (OY) and GROUND.
Is the voltage greater than 6 volts?
YES REPAIR the circuit between the APP sensor electrical connector PA1 pin 5 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
NO Go to step 9 . → 9
A9
CHECK THE POWER SUPPLY CIRCUIT TO THE TP SENSOR
- Turn the ignition switch to the ON position.
- Measure the voltage between TP sensor electrical connector EN13 pin 2 (OY) and GROUND.
Is the voltage greater than 4 volts?
YES Go to step 10 . → A10
NO REPAIR the circuit between the TP sensor electrical connector EN13 pin 2 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A10
CHECK THE POWER SUPPLY CIRCUIT TO THE TP SENSOR FOR SHORT TO BATTERY
- Measure the voltage between TP sensor electrical connector EN13 pin 2 (OY) and GROUND.
Is the voltage greater than 6 volts?
YES REPAIR the circuit between the TP sensor electrical connector EN13 pin 2 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
NO Go to step 11 . → 11
A11
CHECK THE POWER SUPPLY CIRCUIT TO THE AIR CONDITIONING PRESSURE (ACP) SENSOR
- Turn the ignition switch to the ON position.
- Measure the voltage between ACP sensor electrical connector JB106 pin 2 (OY) and GROUND.
Is the voltage greater than 4 volts?
YES Go to step 12 . → A12
NO REPAIR the circuit between the ACP sensor electrical connector JB106 pin 2 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A12
CHECK THE POWER SUPPLY CIRCUIT TO THE AIR CONDITIONING PRESSURE SENSOR FOR SHORT TO BATTERY
- Measure the voltage between ACP sensor electrical connector JB106 pin 2 (OY) and GROUND.
Is the voltage greater than 6 volts?
YES REPAIR the circuit between the ACP sensor electrical connector JB106 pin 2 (OY) and the sensor 5 volt supply bus. CLEAR the DTC. TEST the system for normal operation. The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS.
NO No electrical fault in power supply circuit. Recheck DTCs using the Jaguar approved diagnostic system, or code reader. This fault could also be a PSV failure within the ECM.
Pinpoint Test AB: P1243. SENSOR GROUND CIRCUITS.
Pinpoint Test A
A1
CHECK THE GROUND CIRCUIT TO THE ECT SENSOR
- Measure the resistance between ECT sensor electrical connector EN18 pin 1 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 2 . → A2
NO REPAIR the circuit between the ECT sensor electrical connector EN18 pin 1 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A2
CHECK THE GROUND CIRCUIT TO THE EOT SENSOR
- Measure the resistance between EOT sensor electrical connector EN25 pin 2 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 3 . → A3
NO REPAIR the circuit between the EOT sensor electrical connector EN25 pin 2 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A3
CHECK THE GROUND CIRCUIT TO THE IP SENSOR
- Measure the resistance between IP sensor electrical connector IJ7 pin 2 (WG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 4 . → A4
NO REPAIR the circuit between the IP sensor electrical connector IJ7 pin 2 (WG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A4
CHECK THE GROUND CIRCUIT TO THE EFT SENSOR
- Measure the resistance between EFT sensor electrical connector IJ8 pin 1 (NU) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 5 . → A5
NO REPAIR the circuit between the EFT sensor electrical connector IJ8 pin 1 (NU) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A5
CHECK THE GROUND CIRCUIT TO THE MAP SENSOR
- Measure the resistance between MAP sensor electrical connector EN8 pin 4 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 6 . → A6
NO REPAIR the circuit between the MAP sensor electrical connector EN8 pin 4 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A6
CHECK THE GROUND CIRCUIT TO THE FTP SENSOR
- NOTE: Access to the FTP sensor involves the removal of the fuel tank. To reduce the amount of work necessary, a slave harness could be used. This can be connected at the access port beneath the rear seat. Tests can then be carried out via the slave harness and sensor. If system operation is normal with the slave harness and sensor, the fault lies in the vehicle's harness or sensor.
- Measure the resistance between FTP sensor electrical connector FT1 pin 3 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 7 . → A7
NO REPAIR the circuit between the FTP Sensor electrical connector FT1 pin 3 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A7
CHECK THE GROUND CIRCUIT TO THE APP SENSOR (Track 1)
- Measure the resistance between APP sensor electrical connector PA1 pin 3 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 8 . → A8
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 3 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A8
CHECK THE GROUND CIRCUIT TO THE TP SENSOR
- Measure the resistance between TP sensor electrical connector EN13 pin 1 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 9 . → A9
NO REPAIR the circuit between the TP sensor electrical connector EN13 pin 1 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A9
CHECK THE GROUND CIRCUIT TO THE APP SENSOR (Track 3)
- Measure the resistance between APP sensor electrical connector PA1 pin 6 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 10 . → A10
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 6 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A10
CHECK THE GROUND CIRCUIT TO THE AIR CONDITIONING PRESSURE SENSOR
- Measure the resistance between ACP sensor electrical connector JB106 pin 1 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES No electrical fault in ground circuit. Recheck DTCs.
NO REPAIR the circuit between the ACP sensor electrical connector JB106 pin 1 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
Pinpoint Test AC: P1122, P1123, P1344. APP SENSOR ( TRACK 1)
Pinpoint Test A
A1
CHECK THE POWER SUPPLY CIRCUIT TO THE APP SENSOR. TRACK 1
- Turn the ignition switch to the ON position.
- Measure the voltage between APP sensor electrical connector PA1 pin 2 (Y) and GROUND.
Is the voltage greater than 4volts?
YES Go to step 2 . → A2
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 2 (Y) and the sensor 5 volt supply 2. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM, EMS control relay, and power distribution fuse box. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A2
CHECK THE GROUND CIRCUIT TO THE APP SENSOR
- Turn the ignition switch to the OFF position.
- Disconnect APP Sensor electrical connector PA1.
- Measure the resistance between APP sensor electrical connector PA1 pin 6 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 5 . → A5
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 6 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS
A3
CHECK THE GROUND CIRCUIT TO THE APP SENSOR. FOR CONTINUITY
- Disconnect the ECM electrical connector EN16.
- Disconnect the APP sensor electrical connector PA1.
- Measure the resistance between EN16 pin 20 (BG) and PA1 pin 6 (BG).
Is the resistance less than 5 ohms?
YES Go to step 4 . → A4
NO REPAIR the circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
A4
CHECK THE GROUND CIRCUIT TO THE APP SENSOR. FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Check for a voltage at PA1 pin 6 (BG).
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 5 . → 5
A5
CHECK CONTINUITY OF THE APP SENSOR SIGNAL WIRE
- Turn the ignition switch to the OFF position.
- Disconnect the APP sensor electrical connector PA1.
- Measure the resistance between APP sensor electrical connector PA1 pin 4 (R) and the ECM electrical connector EN16 pin 102 (R).
Is the resistance less than 5 ohms?
YES Go to step 6 . → A6
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 4 (R) and the ECM electrical connector EN16 pin 102 (R). For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
A6
CHECK CONTINUITY OF THE APP SENSOR POTENTIOMETER
- Measure the resistance between APP sensor electrical connector PA1 pins 4 and 6.
- Operate the accelerator pedal through it's full range while observing the resistance reading.
Does the resistance vary as the pedal is operated?
YES INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
NO INSTALL a new accelerator pedal position sensor, Refer to «Accelerator Pedal»(ref-311866) article. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test AD: P1215, P1216, P1344. APP SENSOR ( TRACK 3)
Pinpoint Test A
A1
CHECK THE POWER SUPPLY CIRCUIT TO THE APP SENSOR. TRACK 3
- Turn the ignition switch to the ON position.
- Measure the voltage between APP sensor electrical connector PA1 pin 1(Y) and GROUND.
Is the voltage greater than 4 volts?
YES Go to step 2 . → A2
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 1 (Y) and the sensor 5 volt supply. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM, EMS control relay, and power distribution fuse box. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. This supply is also linked to other sensors. The fault could be in any of these or their wiring.
A2
CHECK THE GROUND CIRCUIT TO THE APP SENSOR
- Turn the ignition switch to the OFF position.
- Disconnect the APP sensor electrical connector PA1.
- Measure the resistance between APP sensor electrical connector PA1 pin 3 (BG) and GROUND.
Is the resistance less than 5 ohms?
YES Go to step 5 . → A5
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 3 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ECM. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS.
A3
CHECK THE GROUND CIRCUIT TO THE APP SENSOR FOR CONTINUITY
- Disconnect the ECM electrical connector EN16.
- Disconnect the APP sensor electrical connector PA1.
- Measure the resistance between EN16 pin 19 (BG) and PA1 pin 3 (BG).
Is the resistance less than 5 ohms?
YES Go to step 4 . → A4
NO REPAIR the circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
A4
CHECK THE GROUND CIRCUIT TO THE APP SENSOR FOR SHORT TO BATTERY
- Connect the ECM electrical connector EN16.
- Turn the ignition switch to the ON position.
- Check for a voltage at PA1 pin 3 (BG).
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 5 . → 5
A5
CHECK CONTINUITY OF THE APP SENSOR SIGNAL WIRE
- Measure the resistance between APP sensor electrical connector PA1 pin 1 (Y) and the ECM electrical connector EN16 pin 103 (Y).
Is the resistance less than 5 ohms?
YES Go to step 6 . → A6
NO REPAIR the circuit between the APP sensor electrical connector PA1 pin 1 (Y) and the ECM electrical connector EN16 pin 103 (Y). For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
A6
CHECK CONTINUITY OF THE APP SENSOR POTENTIOMETER
- Measure the resistance between APP sensor electrical connector PA1 pins 1and 3.
- Operate the accelerator pedal through it's full range while observing the resistance reading.
Does the resistance vary as the pedal is operated?
YES INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing a ECM, contact Dealer technical support.
NO INSTALL a new accelerator pedal position sensor, Refer to «Accelerator Pedal»(ref-311866) article. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test AE: P0480. RADIATOR COOLING FAN MODULE DRIVE
Pinpoint Test A
A1
CHECK THE PULSE WIDTH MODULATED SIGNAL TO THE COOLING FAN MODULE
- Disconnect the radiator cooling fan module electrical connector PWM1.
- RUN the engine to a temperature at which the cooling fans would operate.
- Using a suitable meter, test for a pulse width modulated signal at PWM1 pin 3 (WU).
Is a PWM signal present?
YES INSTALL a new cooling fan module. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 2 . → 2
A2
CHECK CONTINUITY OF THE RADIATOR COOLING FAN MODULE SIGNAL WIRE
- Turn the ignition switch to the OFF position.
- Disconnect the ECM electrical connector EN16.
- Measure the resistance between the radiator cooling fan module electrical connector PWM1 pin 3 (WU) and the ECM electrical connector EN16 pin 51 (WU).
Is the resistance less than 5 ohms?
YES INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
NO REPAIR the circuit between the radiator cooling fan module electrical connector PWM1 pin 3 (WU) and the ECM electrical connector EN16 pin 51 (WU). For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test AF: P0646, P0647. AIR CONDITIONING CLUTCH RELAY DRIVE
Pinpoint Test A
A1
CHECK THE GROUND SUPPLY TO THE AIR CONDITIONING CLUTCH
- WARNING: This test involves working in proximity to rotating parts. Make sure due care is exercised.
- Turn the ignition switch to the ON position.
- Disconnect the ECM electrical connector EN16.
- Disconnect the air conditioning clutch electrical connector EN30.
- Measure the resistance between EN30 pin 2 (B) and GROUND.
Is the resistance less than 5 ohms?
YES REPAIR the circuit between EN30 pin 2 (B) and GROUND. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 2 . → 2
A2
CHECK THE CIRCUIT INTEGRITY BETWEEN THE ECM AND THE AIR CONDITIONING CLUTCH
- Apply a GROUND to the disconnected ECM electrical connector EN16 pin 34 (BG).
- Measure the voltage at air conditioning clutch electrical connector EN30 pin 1 (RG).
Is the voltage greater than 10 volts?
A3
CHECK THE AIR CONDITIONING CLUTCH RELAY TO ECM CIRCUIT FOR SHORT TO GROUND
- Measure the resistance between EN16 pin 34 (BG) and GROUND.
Is the resistance less than 10,000 ohms?
YES Go to step 4 . → A4
NO INSTALL a new air conditioning compressor clutch relay. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
A4
CHECK THE CIRCUIT BETWEEN THE AIR CONDITIONING COMPRESSOR CLUTCH AND THE RELAY FOR SHORT TO BATTERY
- Measure the voltage between EN30 pin 1 (RG) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 5 . → 5
A5
CHECK THE CIRCUIT BETWEEN THE AIR CONDITIONING COMPRESSOR CLUTCH AND THE ACC RELAY FOR SHORT TO GROUND
- Measure the resistance between EN30 pin 1 (RG) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 6 . → 6
A6
CHECK THE CIRCUIT BETWEEN FUSE 23 OF THE POWER DISTRIBUTION FUSE BOX AND THE ACC RELAY FOR SHORT TO GROUND
- Remove Fuse 23.
- Measure the resistance between fuse box electrical connector JB34 pin 79 and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 7 . → 7
A7
CHECK THE ACC RELAY BASE FOR BATTERY VOLTAGE AT PIN 3
- Refit Fuse 23.
- Measure the voltage between the ACC relay base pin 3 and GROUND.
Is the voltage greater than 10 volts?
YES Go to step 8 . → A8
NO Check/replace fuses. REPAIR the circuit between the relay base and the battery power bus 1. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
A8
CHECK THE CIRCUIT BETWEEN PIN 1 OF THE ACC RELAY BASE AND THE POWER DISTRIBUTION FUSE BOX FOR SHORT TO GROUND
- Remove Fuse 36.
- Measure the resistance between the ACC relay base pin 1 and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 9 . → 9
A9
CHECK THE ACC RELAY BASE FOR BATTERY VOLTAGE AT PIN 1
- Refit Fuse 36.
- Turn the ignition switch to the ON position.
- Measure the voltage between ACC relay base pin 1 and GROUND.
Is the voltage greater than 10 volts?
YES Go to step 10 . → A10
NO Check/replace fuses. REPAIR the circuit between the relay base and the battery power bus 2. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. This circuit includes the EMS relay, and Fuses 9 and 31
A10
CHECK THE CIRCUIT BETWEEN THE ECM AND THE ACC RELAY BASE FOR CONTINUITY
- Remove the ACC relay.
- Measure the resistance between the ECM electrical connector EN16 pin 34 (BG) and ACC relay base pin 2.
Is the resistance less than 5 ohms?
YES Go to step 11 . → A11
NO REPAIR the circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
A11
CHECK THE CIRCUIT BETWEEN THE ECM AND THE ACC RELAY BASE FOR SHORT TO BATTERY
- Check for a voltage between the ECM electrical connector EN16 pin 34 (BG) and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 12 . → 12
A12
CHECK THE CIRCUIT BETWEEN THE ECM AND THE ACC RELAY BASE FOR SHORT TO GROUND
- Measure the resistance between the ECM electrical connector EN16 pin 34 (BG) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new ACC relay. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
Pinpoint Test AG: P1516, P1517. P/N SWITCH STARTING/DRIVING MALFUNCTIONS.
Pinpoint Test A
A1
CHECK THE P/N INPUT TO THE ECM.
- Select PARK.
- Set the ignition switch to the ON position.
- Measure the voltage at the ECM electrical connector EN16 pin 31 (B).
Is the voltage greater than 10 volts?
YES INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing a ECM, contact Dealer technical support.
NO REPAIR the circuit between the ECM electrical connector EN16 pin 31 (B) and the ignition switch. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. On automatic transmission vehicles, this circuit includes the TR sensor, central junction fuse box, ignition relay, and inertia switch. On NAS manual transmission vehicles, this circuit also includes the clutch safety switch.
Pinpoint Test AE: P1245; P1246. IGNITION SWITCH CRANK SIGNAL
| WARNING | Make sure the starter motor does not engage in the course of these tests. Failure to follow these instructions may result in personal injury. |
Pinpoint Test A
A1
CHECK THE START INPUT TO THE ECM
- Move the gear selector to the N position.
- Disconnect the ECM electrical connector EN16.
- Remove the starter relay from the power distribution fuse box.
- Turn the ignition switch to the CRANK position.
- Measure the voltage between EN16 pin 6 (Y) and GROUND.
Is the voltage greater than 10 volts?
YES Go to step 2 . → A2
NO REPAIR the circuit between the ECM and the battery. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ignition switch and the power distribution fuse box. [Fuse 28].
A2
CHECK THE START INPUT TO THE STARTER RELAY
- Turn the ignition switch to the START position and hold.
- Measure the voltage between the starter relay base (R10) pin 1 and GROUND.
Is the voltage greater than 10 volts?
YES Go to step 3 . → A3
NO REPAIR the circuit between the starter relay base and the battery. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. This circuit includes the ignition switch and the power distribution fuse box
A3
CHECK THE START INPUT WIRE FOR SHORT TO BATTERY AT ECM
- Turn the ignition switch to the ON position.
- Measure the voltage between EN16 pin 6 (Y) and GROUND.
Is the voltage greater than 10 volts?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 4 . → 4
A4
CHECK THE START INPUT WIRE FOR SHORT TO BATTERY AT RELAY
- Turn the ignition switch to the ON position.
- Measure the voltage between the starter relay base pin 1 and GROUND.
Is the voltage greater than 10 volts?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 5 . → 5
A5
CHECK THE STARTER RELAY INPUT FROM THE ECM FOR CONTINUITY
- Measure the resistance between EN16 pin 41 (GO) and relay base pin 2.
Is the resistance less than 5 ohms?
YES Go to step 6 . → A6
NO REPAIR the open circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
A6
CHECK THE STARTER RELAY INPUT FROM THE ECM FOR SHORT TO GROUND
- Disconnect ignition switch electrical connector IP18.
- Measure the resistance between EN16 pin 41 (GO) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 7 . → 7
A7
CHECK THE STARTER RELAY INPUT FROM THE ECM FOR SHORT TO BATTERY
- Measure the voltage between the starter relay base pin 2 and GROUND.
Is the voltage greater than 1 volt?
YES REPAIR the short circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new starter relay. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. See «Engine Control Module (ECM)»(ref-311888-S06476541992009040700000) or «Engine Control Module (ECM)»(ref-311889) article. Before replacing an ECM, contact dealer technical support.
Scheme 7
- Remove the engine cover.
- Disconnect the CMP sensor electrical connector.
- Remove the CMP sensor. Remove and discard the O-ring seal.