For information on the description and operation of the intake air distribution and filtering system: REFER to: Intake Air Distribution and Filtering (303-12D Intake Air Distribution and Filtering - TDV8 3.6L Diesel, Description and Operation).
Visual Inspection
| Mechanical | Electrical |
|---|---|
|
|
| Symptom | Possible causes | Action |
|---|---|---|
| Vehicle does not start/hard starting |
| Check the intake air system for blockages or restriction. Rectify as necessary. |
| Poor performance |
| Check the intake air system for blockages or restriction. Rectify as necessary. Check for DTCs indicating a turbocharger, EGR valve or fuel pressure fault. Rectify as necessary. Check the exhaust system for evidence of damage or restriction. Rectify as necessary. |
| Excessive intake noise |
| Check the intake air system for loose or disconnected hoses or ducts. Check the hoses and ducts for damage, splits, etc. Rectify as necessary. |
Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).
For a full list of engine control module (ECM) DTCs: REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls - 3.6L (TdV8) Diesel, Diagnosis and Testing).
| DTC | Description | Possible causes | Action |
|---|---|---|---|
| P006A21 | Manifold absolute pressure temperature (MAPT) sensor - mass or volume air flow correlation - signal amplitude less than minimum |
| Check the intake air system for leakage after the turbocharger. Check for DTCs indicating a MAPT sensor fault. Clear the DTCs and test for normal operation. |
| P006A22 | Manifold absolute pressure and temperature (MAPT) sensor - mass or volume air flow correlation, right-hand bank - signal amplitude greater than maximum |
| With the engine at idle, check the manifold air pressure and indicated torque set points using a datalogger function. If the manifold air pressure is greater than 140 KPa (20.31 lbs/in²) or the torque less than 70 Nm (51.63 lbf/ft), check for oil being drawn into the intake manifold. Rectify as necessary. Clear the DTCs and test for normal operation. Stop the engine and turn the ignition on. Using a datalogger function, monitor the turbocharger actuator angles. Command the actuator to 5% pulse width modulated (PWM) then to 95% pulse PWM and check the angle values. The angle at 5% PWM should be 0 - 20%, and at 95% 80 - 95%. If the values are inside this range, install a new MAF sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). If the values are outside this range, install a new turbocharger. REFER to: Right Turbocharger (303-04F Fuel Charging and Controls - Turbocharger - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P007C16 | Right-hand charge air temperature sensor circuit low (the charge air temperature sensor is part of the manifold absolute pressure and temperature (MAPT) sensor) |
| Check the right-hand MAPT sensor and circuits. Refer to the electrical guides. Check the resistance of the temperature sensor (pins 1 and 4 of the MAPT). Nominal resistance at 20 °C (68 °F) should be 2.5 Kohms. Install a new MAPT if necessary. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P007D17 | Right-hand charge air temperature sensor circuit high (the charge air temperature sensor is part of the manifold absolute pressure and temperature (MAPT) sensor) |
| Check the right-hand MAPT sensor and circuits. Refer to the electrical guides. Check the resistance of the temperature sensor (pins 1 and 4 of the MAPT). Nominal resistance at 20 °C (68 °F) should be 2.5 Kohms. Install a new MAPT if necessary. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P007E27 | Right-hand charge air temperature sensor circuit intermittent/erratic (the charge air temperature sensor is part of the manifold absolute pressure and temperature (MAPT) sensor) |
| Check the right-hand MAPT sensor and circuits. Refer to the electrical guides. With the engine running and at operating temperature, check the boost air temperature using a datalogger function. Record the measurement at idle and increase the engine speed to 3,000 rpm. Record the reading and compare with the idle figure. If the value has increased by more than 20 °C in 100 ms, install a new sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P007F62 | Charge air temperature sensor left and right-hand bank correlation (the charge air temperature sensors are part of the manifold absolute pressure and temperature (MAPT) sensors) |
| Check the intake air system for mechanical faults, leakage, etc. Check the left and right-hand MAPT sensors and circuits. Refer to the electrical guides. With the engine running and at operating temperature, check the boost air temperature using a datalogger function. Record the measurement at idle and increase the engine speed to 3,000 rpm. Record the reading and compare with the idle figure. If the value has changed by more than 30 °C and there are no other DTCs set, install two new sensors. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P00A216 | Left-hand charge air temperature sensor circuit low (the charge air temperature sensor is part of the manifold absolute pressure and temperature (MAPT) sensor) |
| Check the left-hand MAPT sensor and circuits. Refer to the electrical guides. Check the resistance of the temperature sensor (pins 1 and 4 of the MAPT). Nominal resistance at 20 °C (68 °F) should be 2.5 Kohms. Install a new MAPT if necessary. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P00A317 | Left-hand charge air temperature sensor circuit high (the charge air temperature sensor is part of the manifold absolute pressure and temperature (MAPT) sensor) |
| Check the left-hand MAPT sensor and circuits. Refer to the electrical guides. Check the resistance of the temperature sensor (pins 1 and 4 of the MAPT). Nominal resistance at 20 °C (68 °F) should be 2.5 Kohms. Install a new MAPT if necessary. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P00A427 | Left-hand charge air temperature sensor circuit intermittent/erratic (the charge air temperature sensor is part of the manifold absolute pressure and temperature (MAPT) sensor) |
| Check the left-hand MAPT sensor and circuits. Refer to the electrical guides. With the engine running and at operating temperature, check the boost air temperature using a datalogger function. Record the measurement at idle and increase the engine speed to 3,000 rpm. Record the reading and compare with the idle figure. If the value has increased by more than 20 °C in 100 ms, install a new sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P00B821 | Manifold absolute pressure and temperature (MAPT) sensor - mass or volume air correlation, left-hand bank - signal amplitude less than minimum |
| Check the intake air system for leakage after the turbocharger. Check for DTCs indicating a MAPT sensor fault. Rectify as necessary. Clear the DTCs and test for normal operation. |
| P00B822 | Manifold absolute pressure and temperature (MAPT) sensor - mass or volume air correlation, left-hand bank - signal amplitude greater than maximum |
| With the engine at idle, check the manifold air pressure and indicated torque set points using a datalogger function. If the manifold air pressure is greater than 140 KPa (20.31 lbs/in²) or the torque less than 70 Nm (51.63 lbf/ft), check for oil being drawn into the intake manifold. Rectify as necessary. Clear the DTCs and test for normal operation. Stop the engine and turn the ignition on. Using a datalogger function, monitor the turbocharger actuator angles. Command the actuator to 5% pulse width modulated (PWM) then to 95% PWM and check the angle values. The angle at 5% PWM should be 0 - 20%, and at 95% PWM 80 - 95%. If the values are inside this range, install a new MAF sensor. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). If the values are outside this range, install a new turbocharger. REFER to: Left Turbocharger (303-04F Fuel Charging and Controls - Turbocharger - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P010036 | Right-hand mass air flow (MAF) sensor circuit - signal frequency too low |
| Check the right-hand MAF sensor and circuits. Refer to the electrical guides. With the engine at idle, check the air flow using a datalogger function. If the value is greater than 13.88 g/s or less than 11.11 g/s install a new MAF sensor. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P010116 | Right-hand mass air flow (MAF) sensor range/performance - voltage below threshold |
| Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. With the engine at idle, check the air flow using a datalogger function. If the value is less than 11.11 g/s, install a new sensor and recheck. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). |
| P010117 | Right-hand mass air flow (MAF) sensor range/performance - voltage above threshold |
| Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. With the engine at idle, check the air flow using a datalogger function. If the value is greater than 13.88 g/s, install a new sensor and recheck. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). |
| P010121 | Right-hand mass air flow (MAF) sensor range/performance - signal amplitude less than minimum |
| Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. With the engine at idle, check the air flow using a datalogger function. If the value is less than 11.11 g/s, install a new sensor and recheck. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). |
| P010122 | Right-hand mass air flow (MAF) sensor range/performance - signal amplitude greater than maximum |
| Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. With the engine at idle, check the air flow using a datalogger function. If the value is greater than 13.88 g/s, install a new sensor and recheck. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). |
| P010221 | Right-hand mass air flow (MAF) sensor circuit low - signal amplitude less than minimum |
| Check the intake air system for leaks, etc. Rectify as necessary. Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. Check that the EGR valves are not stuck. Using a datalogger function, monitor the air flow and EGR valve position for both banks and road test the vehicle. Check that the EGR valves are in synch. Rectify as necessary. Clear the DTCs and test for normal operation. |
| P010322 | Right-hand mass air flow (MAF) sensor circuit high - signal amplitude greater than maximum |
| Check the intake air system for leaks, etc. Rectify as necessary. Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. With the ignition on, engine off, and using a datalogger function, monitor the turbocharger actuator angles. Command the actuator to 5% pulse width modulated (PWM) then to 95% PWM and check the angle values. The angle at 5% PWM should be 0 - 20%, and at 95% PWM 80 - 95%. If the values are inside this range, install a new MAF sensor. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). If the values are outside this range, install a new turbocharger. REFER to: Right Turbocharger (303-04F Fuel Charging and Controls - Turbocharger - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P010438 | Right-hand mass air flow (MAF) sensor circuit intermittent/erratic - signal frequency incorrect |
| Check the right-hand MAF sensor and circuits. Refer to the electrical guides. Measure the mass air flow at idle using a datalogger function and record the value. Increase the engine speed to 2,000 rpm and record the value. If the value has changed by more than 30.55 g/s install a new MAF sensor and recheck. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P010A36 | Left-hand mass air flow (MAF) sensor circuit - signal frequency too low |
| Check the left-hand MAF sensor and circuits. Refer to the electrical guides. With the engine at idle, check the air flow using a datalogger function. If the value is greater than 13.88 g/s or less than 11.11 g/s install a new MAF sensor. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P010B21 | Left-hand mass air flow (MAF) sensor range/performance - signal amplitude less than minimum |
| Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. With the engine at idle, check the air flow using a datalogger function. If the value is less than 11.11 g/s, install a new sensor and recheck. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P010B22 | Left-hand mass air flow (MAF) sensor range/performance - signal amplitude greater than maximum |
| Check the left-hand MAF sensor and circuits. Refer to the electrical guides. With the engine at idle, check the air flow using a datalogger function. If the value is greater than 13.88 g/s or less than 11.11 g/s install a new MAF sensor. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P010C21 | Left-hand mass air flow (MAF) sensor circuit low - signal amplitude less than minimum |
| Check the intake air system for leaks, etc. Rectify as necessary. Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. Check that the EGR valves are not stuck. Using a datalogger function, monitor the air flow and EGR valve position for both banks and road test the vehicle. Check that the EGR valves are in synch. Rectify as necessary. Clear the DTCs and test for normal operation. |
| P010D22 | Left-hand mass air flow (MAF) sensor circuit high - signal amplitude greater than maximum |
| Check the intake air system for leaks, etc. Rectify as necessary. Check the MAF sensor and circuits. Refer to the electrical guides. Rectify as necessary. With the ignition on, engine off, and using a datalogger function, monitor the turbocharger actuator angles. Command the actuator to 5% pulse width modulated (PWM) then to 95% PWM and check the angle values. The angle at 5% PWM should be 0 - 20%, and at 95% PWM 80 - 95%. If the values are inside this range, install a new MAF sensor. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). If the values are outside this range, install a new turbocharger. REFER to: Left Turbocharger (303-04F Fuel Charging and Controls - Turbocharger - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P010E38 | Left-hand mass air flow (MAF) sensor circuit intermittent/erratic - signal frequency incorrect |
| Check the left-hand MAF sensor and circuits. Refer to the electrical guides. Measure the mass air flow at idle using a datalogger function and record the value. Increase the engine speed to 2,000 rpm and record the value. If the value has changed by more than 30.55 g/s install a new MAF sensor and recheck. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). |
| P010F62 | Mass or volume air flow sensor right/left-hand correlation - signal compare fault (difference between right and left-hand mass air flow sensors too great) |
| Check the left-hand MAF sensor and circuits. Refer to the electrical guides. Check the intake air path for leaks. Check the MAF sensor for carbon or oil contamination. Install a new MAF sensor as necessary. REFER to: Mass Air Flow Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P011216 | Intake air temperature (IAT) sensor circuit low input - voltage below threshold (the IAT sensor is part of the right-hand MAF sensor. The IAT sensor in the left-hand MAF is not used) |
| Check the IAT sensor and circuits. Refer to the electrical guides. Measure the resistance of the IAT sensor (pins 2 and 3 of the MAF sensor). Nominal resistance at 20 °C (68 °F) should be 2.5 Kohms. As the two MAF sensors are identical, it is possible to confirm the diagnosis by swapping the units from side to side and testing to see if the DTC resets. |
| P011317 | Intake air temperature (IAT) sensor circuit high input - voltage above threshold (the IAT sensor is part of the right-hand MAF sensor. The IAT sensor in the left-hand MAF is not used) |
| Check the IAT sensor and circuits. Refer to the electrical guides. Measure the resistance of the IAT sensor (pins 2 and 3 of the MAF sensor). Nominal resistance at 20 °C (68 °F) should be 2.5 Kohms. As the two MAF sensors are identical, it is possible to confirm the diagnosis by swapping the units from side to side and testing to see if the DTC resets. |
| P011427 | Intake air temperature (IAT) sensor intermittent/erratic - signal rate of change above threshold (the IAT sensor is part of the right-hand MAF sensor. The IAT sensor in the left-hand MAF is not used) |
| Check the IAT sensor and circuits. Refer to the electrical guides. Start the engine and allow to warm up. Read the intake air temperature using a datalogger function and record the value. After ten minutes, read the value again and compare to the first reading. If the value has increased by more than 10°C per 100 ms swap the MAF sensors side to side and recheck. |
| P011C00 | Right-hand bank charge air temperature (MAPT)/intake air temperature (IAT) sensor correlation - signal invalid (the IAT sensor is part of the right-hand MAF sensor. The IAT sensor in the left-hand MAF is not used) |
| Check the right-hand MAPT and MAF sensors and circuits. Refer to the electrical guides. Monitor the charge air temperature and intake air temperature signals using a datalogger function. Start the engine and "wiggle" the sensor connectors with the engine running. Check the recorded values for the two sensors, the maximum difference should not exceed +40 °C to -30 °C (104 °F to -22 °F). If the IAT sensor is suspect, swap the MAF sensors side to side and recheck. If the fault remains, install a new right-hand MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P011D00 | Left-hand bank charge air temperature (MAPT)/intake air temperature (IAT) sensor correlation - signal invalid (the IAT sensor is part of the right-hand MAF sensor. The IAT sensor in the left-hand MAF is not used) |
| Check the left-hand MAPT and MAF sensors and circuits. Refer to the electrical guides. Monitor the charge air temperature and intake air temperature signals using a datalogger function. Start the engine and "wiggle" the sensor connectors with the engine running. Check the recorded values for the two sensors, the maximum difference should not exceed 40 °C to -30 °C (104 °F to -22 °F). If the IAT sensor is suspect, swap the MAF sensors side to side and recheck. If the fault remains, install a new left-hand MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P023D21 | Manifold absolute pressure (MAP) sensor/right-hand turbocharger boost sensor correlation - signal amplitude less than minimum |
| Check the intake air system. Check the turbochargers mechanical condition and operation. Check for oil being drawn into the intake manifold. Rectify as necessary. Using a datalogger function, monitor the turbocharger actuator position and command the actuator to 5% pulse width modulated (PWM), then 95% PWM in 5% steps. Check the results. There should be a smooth curve between the minimum and maximum values. If not, install a new turbocharger. REFER to: Right Turbocharger (303-04F Fuel Charging and Controls - Turbocharger - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P023D22 | Manifold absolute pressure (MAP) sensor/right-hand turbocharger boost sensor correlation - signal amplitude greater than maximum |
| Check the intake air system. Check the turbochargers mechanical condition and operation. Check for DTCs indicating a listed sensor fault. Rectify as necessary. Using a datalogger function, monitor the turbocharger actuator position and command the actuator to 5% pulse width modulated (PWM), then 95% PWM in 5% steps. Check the results. There should be a smooth curve between the minimum and maximum values. If not, install a new turbocharger. REFER to: Right Turbocharger (303-04F Fuel Charging and Controls - Turbocharger - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P023E21 | Manifold absolute pressure (MAP) sensor/left-hand turbocharger boost sensor correlation - signal amplitude less than minimum |
| Check the intake air system. Check the turbochargers mechanical condition and operation. Check for oil being drawn into the intake manifold. Rectify as necessary. Using a datalogger function, monitor the turbocharger actuator position and command the actuator to 5% pulse width modulated (PWM), then 95% PWM in 5% steps. Check the results. There should be a smooth curve between the minimum and maximum values. If not, install a new turbocharger. REFER to: Left Turbocharger (303-04F Fuel Charging and Controls - Turbocharger - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P023E22 | Manifold absolute pressure (MAP) sensor/left-hand turbocharger boost sensor correlation - signal amplitude greater than maximum |
| Check the intake air system. Check the turbochargers mechanical condition and operation. Check for DTCs indicating a listed sensor fault. Rectify as necessary. Using a datalogger function, monitor the turbocharger actuator position and command the actuator to 5% pulse width modulated (PWM), then 95% PWM in 5% steps. Check the results. There should be a smooth curve between the minimum and maximum values. If not, install a new turbocharger. REFER to: Left Turbocharger (303-04F Fuel Charging and Controls - Turbocharger - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. |
| P065E00 | Intake manifold tuning (IMT) valve performance |
| Check the IMT valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new IMT valve. Clear the DTCs and test for normal operation. |
| P066013 | Intake manifold tuning (IMT) valve control circuit open |
| Check the IMT valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new IMT valve. Clear the DTCs and test for normal operation. |
| P066111 | Intake manifold tuning (IMT) valve control circuit low - circuit short to ground |
| Check the IMT valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new IMT valve. Clear the DTCs and test for normal operation. |
| P066212 | Intake manifold tuning (IMT) valve control circuit high - circuit short to battery |
| Check the IMT valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new IMT valve. Clear the DTCs and test for normal operation. |
| P123A21 | Barometric - turbocharger boost sensor A (right-hand manifold absolute pressure temperature (MAPT) sensor) correlation - signal amplitude less than minimum |
| Recover the freeze-frame data to determine when the code was set. Check the MAPT sensors and circuits. Refer to the electrical guides. Make sure the coolant temperature is above 0 °C (32 °F) and with the ignition on, check the manifold absolute pressure in both banks using a datalogger function. If the values are significantly different, install a new right-hand MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. Compare the right-hand bank manifold absolute pressure with ambient pressure. If the difference exceeds 20 Kpa (2.90 lbs/in²), suspect the ECM. Start the engine and allow to idle. Check the manifold absolute pressure in both banks and compare with the values at ignition on, engine not running. The pressures should have increased together to between 52.7 Kpa and 120 Kpa (7.64 and 17.40 lbs/in²). If this is not the case, install a new MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Refer to the warranty policy and procedures manual if a module is suspect. |
| P123A22 | Barometric - turbocharger boost sensor A (right-hand manifold absolute pressure temperature (MAPT) sensor) correlation - signal amplitude greater than maximum |
| Recover the freeze-frame data to determine when the code was set. Check the MAPT sensors and circuits. Refer to the electrical guides. Make sure the coolant temperature is above 0 °C (32 °F) and with the ignition on, check the manifold absolute pressure in both banks using a datalogger function. If the values are significantly different, install a new right-hand MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. Compare the right-hand bank manifold absolute pressure with ambient pressure. If the difference exceeds 20 Kpa (2.90 lbs/in²), suspect the ECM. Start the engine and allow to idle. Check the manifold absolute pressure in both banks and compare with the values at ignition on, engine not running. The pressures should have increased together to between 52.7 Kpa and 120 Kpa (7.64 and 17.40 lbs/in²). If this is not the case, install a new MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Refer to the warranty policy and procedures manual if a module is suspect. |
| P123B21 | Barometric - turbocharger boost sensor B (left-hand manifold absolute pressure temperature (MAPT) sensor) correlation - signal amplitude less than minimum |
| Recover the freeze-frame data to determine when the code was set. Check the MAPT sensors and circuits. Refer to the electrical guides. Make sure the coolant temperature is above 0 °C (32 °F) and with the ignition on, check the manifold absolute pressure in both banks using a datalogger function. If the values are significantly different, install a new right-hand MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. Compare the right-hand bank manifold absolute pressure with ambient pressure. If the difference exceeds 20 Kpa (2.90 lbs/in²), suspect the ECM. Start the engine and allow to idle. Check the manifold absolute pressure in both banks and compare with the values at ignition on, engine not running. The pressures should have increased together to between 52.7 Kpa and 120 Kpa (7.64 and 17.40 lbs/in²). If this is not the case, install a new MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Refer to the warranty policy and procedures manual if a module is suspect. |
| P123B22 | Barometric - turbocharger boost sensor B (left-hand manifold absolute pressure temperature (MAPT) sensor) correlation - signal amplitude greater than maximum |
| Recover the freeze-frame data to determine when the code was set. Check the MAPT sensors and circuits. Refer to the electrical guides. Make sure the coolant temperature is above 0 °C (32 °F) and with the ignition on, check the manifold absolute pressure in both banks using a datalogger function. If the values are significantly different, install a new right-hand MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. Compare the right-hand bank manifold absolute pressure with ambient pressure. If the difference exceeds 20 Kpa (2.90 lbs/in²), suspect the ECM. Start the engine and allow to idle. Check the manifold absolute pressure in both banks and compare with the values at ignition on, engine not running. The pressures should have increased together to between 52.7 Kpa and 120 Kpa (7.64 and 17.40 lbs/in²). If this is not the case, install a new MAPT sensor. REFER to: Manifold Absolute Pressure and Temperature Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation). Refer to the warranty policy and procedures manual if a module is suspect. |
| P200813 | Intake manifold runner (port deactivation) control circuit open |
| Check the port deactivation valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new valve. Clear the DTCs and test for normal operation. |
| P200911 | Intake manifold runner (port deactivation) control circuit low |
| Check the port deactivation valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new valve. Clear the DTCs and test for normal operation. |
| P201012 | Intake manifold runner (port deactivation) control circuit high |
| Check the port deactivation valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new valve. Clear the DTCs and test for normal operation. |
| P207000 | Intake manifold tuning (IMT) valve - stuck open |
| Check the IMT valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new valve. Clear the DTCs and test for normal operation. |
| P207100 | Intake manifold tuning (IMT) valve - stuck closed |
| Check the IMT valve and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new valve. Clear the DTCs and test for normal operation. |
| P210502 | Throttle actuator control system - forced engine shutdown - general signal fault |
| Check for associated DTCs and rectify as necessary. If this DTC resets, contact the technical help desk. |