DIAGNOSIS AND TESTING

Overview

For information on the description and operation of the emission control system: REFER to: Engine Emission Control (303-08D Engine Emission Control - TDV8 3.6L Diesel, Description and Operation).

Inspection and verification

Verify the customer concern.

Visually inspect for obvious mechanical or electrical faults.

Visual Inspection

Mechanical	Electrical
Engine breather hoses Oil separator Exhaust gas recirculation (EGR) pipes (check for cracks) EGR valve(s) EGR cooler(s)	Fuse(s) Wiring harness Loose or corroded electrical connector(s) Intake manifold tuning (IMT) valve EGR valve(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.

Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index.

Symptom Chart

Symptom (specific)	Possible cause	Action
Difficult to start	Exhaust gas recirculation (EGR) valve(s) stuck open	Check the EGR valve and circuits. Refer to the electrical guides. Check the mechanical condition of the EGR valves. Rectify as necessary.
Poor/Erratic idle
Lack of power when accelerating
Engine stops/stalls	Exhaust gas recirculation (EGR) valve(s) stuck open Breather system disconnected/restricted/blocked	Check the EGR valve and circuits. Refer to the electrical guides. Check the mechanical condition of the EGR valves. Check the engine breather system. Check the oil separator. REFER to: Engine Emission Control (303-08D Engine Emission Control - TDV8 3.6L Diesel, Description and Operation). Check for DTCs indicating an EGR valve, throttle or sensor fault. Rectify as necessary.
Excessive fuel consumption	Exhaust gas recirculation (EGR) valve(s) stuck open EGR not operating Breather system restricted/blocked
Excessive black smoke
Excessive emissions
Excessive blow-by	Breather system restricted/blocked	Check the engine breather hoses. Check the oil separator. REFER to: Engine Emission Control (303-08D Engine Emission Control - TDV8 3.6L Diesel, Description and Operation). Rectify as necessary.
Engine oil leaks	Breather system restricted/blocked	Check the engine breather hoses. Check the oil separator. REFER to: Engine Emission Control (303-08D Engine Emission Control - TDV8 3.6L Diesel, Description and Operation). Rectify as necessary.

DTC index

NOTES:

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, Diagnosis and Testing).

DTC	Description	Possible cause	Action
P040100	Exhaust gas recirculation (EGR) insufficient flow detected	EGR control deviation lower limit, right-hand bank (intake manifold tuning (IMT) valve closed - bank specific control of EGR)	Allow the engine to warm up, switch off and turn the ignition on. Using a datalogger function, check the EGR valve angle for the right-hand bank. Command the valve actuator to 0% then 100% pulse width modulated (PWM) and recheck the values. The angle should range between 5% and 95%. If this is not the case, install a new valve as necessary. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P040121	Exhaust gas recirculation (EGR) insufficient flow detected - signal amplitude less than minimum	EGR control deviation lower limit right-hand bank (intake manifold tuning (IMT) valve closed) bank specific control of EGR	Allow the engine to warm up, switch off and turn the ignition on. Using a datalogger function, check the EGR valve angles for both banks. Command the valve actuators to 100% then 0% pulse width modulated (PWM), and recheck the valve angles. The angles should range between 95% and 5%. If this is not the case, install new valves as necessary. REFER to: (303-08D Engine Emission Control - TDV8 3.6L Diesel) Left Exhaust Gas Recirculation Valve (Removal and Installation), Right Exhaust Gas Recirculation Valve (Removal and Installation). Clear the DTCs and test for normal operation.
P040200	Right-hand exhaust gas recirculation (EGR) excessive flow detected	EGR control deviation upper limit right-hand bank (intake manifold tuning (IMT) valve closed) - bank specific control of EGR	Allow the engine to warm up, switch off and turn the ignition on. Using a datalogger function, check the EGR valve angle for the right-hand bank. Command the valve actuator to 0% then 100% pulse width modulated (PWM) and recheck the values. The angle should range between 5% and 95%. If this is not the case, install a new valve as necessary. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P040222	Right-hand exhaust gas recirculation (EGR) excessive flow detected - signal amplitude greater than maximum	EGR control deviation upper limit right-hand bank (intake manifold tuning (IMT) valve closed) bank specific control of EGR	Allow the engine to warm up, switch off and turn the ignition on. Using a datalogger function, check the EGR valve angle. Command the valve actuator to 0% then 100% pulse width modulated (PWM), and recheck the valve angles. The angles should range between 5% and 95%. If this is not the case, install a new valve as necessary. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P040300	Right-hand exhaust gas recirculation (EGR) control circuit	EGR valve circuit fault EGR valve fault Engine control module (ECM) fault	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, turn the ignition on and check the EGR valve values for both banks. Turn the ignition off and make sure the cleaning cycle is performed (the valves should cycle from 0% to 100% approximately 6 times). Turn the ignition on, command the actuators to 0% pulse width modulated (PWM) and check the sensor reading. The value should be 0 - 20%. Command the actuators to 100% PWM and check the sensor reading. The value should be 80 - 95%. If the values are outside this range, install a new valve as necessary. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. If there is still an issue, suspect the ECM. Refer to the warranty policy and procedures manual if an ECM is suspect.
P040319	Right-hand exhaust gas recirculation (EGR) control circuit - current over threshold	EGR valve control circuit: short circuit to ground EGR valve control circuit: short circuit to power	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, turn the ignition on and check the EGR valve values for both banks. Turn the ignition off and make sure the cleaning cycle is performed (the valves should cycle from 0% to 100% approximately 6 times). Turn the ignition on, command the actuators to 0% pulse width modulated (PWM) and check the sensor reading. The value should be 0 - 20%. Command the actuators to 100% PWM and check the sensor reading. The value should be 80 - 95%. If the values are outside this range, install a new valve as necessary. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. If there is still an issue, suspect the engine control module (ECM). Refer to the warranty policy and procedures manual if an ECM is suspect.
P040521	Right-hand exhaust gas recirculation (EGR) sensor circuit low - signal amplitude less than minimum	EGR valve position sensor circuit: short circuit to ground EGR valve position sensor fault	Check the right-hand EGR sensor and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR valve angle. With the ignition on, engine off, command the valve actuator to 0% pulse width modulated (PWM), and then to 100% PWM and recheck the EGR valve angle. The value should range from 0 - 20% to 80 - 95%. If this is not the case, install a new sensor. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P040622	Right-hand exhaust gas recirculation (EGR) sensor circuit high - signal amplitude greater than maximum	EGR valve position sensor circuit: short circuit to power EGR valve position sensor fault	Check the right-hand EGR sensor and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR valve angle. With the ignition on, engine off, command the valve actuator to 0% pulse width modulated (PWM), and then to 100% PWM and recheck the EGR valve angle. The value should range from 0 - 20% to 80 - 95%. If this is not the case, install a new sensor. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P040721	Right-hand exhaust gas recirculation (EGR) throttle position sensor circuit low - signal amplitude less than minimum	EGR throttle position sensor circuit: short circuit to ground EGR throttle position sensor circuit: high resistance EGR sensor fault	Check the EGR throttle position sensor and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P040822	Right-hand exhaust gas recirculation (EGR) throttle position sensor circuit low - signal amplitude greater than maximum	EGR throttle position sensor circuit: short circuit to power EGR throttle position sensor fault	Check the EGR throttle position sensor and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P045A00	Left-hand exhaust gas recirculation (EGR) control circuit	EGR valve circuit fault EGR valve fault Engine control module (ECM) fault	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, turn the ignition on and check the EGR valve values for both banks. Turn the ignition off and make sure the cleaning cycle is performed (the valves should cycle from 0% to 100% approximately 6 times). Turn the ignition on, command the actuators to 0% pulse width modulated (PWM) and check the sensor reading. The value should be 0 - 20%. Command the actuators to 100% PWM and check the sensor reading. The value should be 80 - 95%. If the values are outside this range, install a new valve as necessary. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. If there is still an issue, suspect the ECM. Refer to the warranty policy and procedures manual if an ECM is suspect.
P045A19	Left-hand exhaust gas recirculation (EGR) control circuit - current over threshold	EGR valve control circuit: short circuit to ground EGR valve control circuit: short circuit to power	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, turn the ignition on and check the EGR valve values for both banks. Turn the ignition off and make sure the cleaning cycle is performed (the valves should cycle from 0% to 100% approximately 6 times). Turn the ignition on, command the actuators to 0% pulse width modulated (PWM) and check the sensor reading. The value should be 0 - 20%. Command the actuators to 100% PWM and check the sensor reading. The value should be 80 - 95%. If the values are outside this range, install a new valve as necessary. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. If there is still an issue, suspect the engine control module (ECM). Refer to the warranty policy and procedures manual if an ECM is suspect.
P045C00	Left-hand exhaust gas recirculation (EGR) control circuit low	EGR valve sticking Intake air temperature (IAT) sensor circuit fault Ambient pressure (AMP) sensor circuit fault Manifold absolute pressure and temperature (MAPT) sensor circuit fault Mass air flow (MAF) sensor circuit fault EGR sensor circuit fault	Check for DTCs indicating a sensor fault. Check the IAT, AMP, MAPT, MAF and EGR sensor circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P045D00	Left-hand exhaust gas recirculation (EGR) control circuit high	EGR valve sticking Intake air temperature (IAT) sensor circuit fault Ambient pressure (AMP) sensor circuit fault Manifold absolute pressure and temperature (MAPT) sensor circuit fault Mass air flow (MAF) sensor circuit fault EGR sensor circuit fault	Check for DTCs indicating a sensor fault. Check the IAT, AMP, MAPT, MAF and EGR sensor circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P048700	Right-hand exhaust gas recirculation (EGR) throttle control circuit - open	EGR valve circuit fault EGR valve fault Engine control module (ECM) fault	Using a datalogger function, check the EGR throttle position with the ignition on, engine off and record the value. Command the actuator to 100% pulse width modulated (PWM) and recheck the position reading. The value should be 80 - 95%. Command the actuator to 0% PWM and recheck the position reading. The value should be 0 - 20%. Manually close and open the throttle and check the resistance. The resistance should range from 300 to 2,500 ohms. If the values are not in this range, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. If there is still an issue, suspect the ECM. Refer to the warranty policy and procedures manual if an ECM is suspect.
P048819	Right-hand exhaust gas recirculation (EGR) throttle control circuit range/performance - current above threshold	Right-hand EGR throttle over current check	Using a datalogger function, check the EGR throttle position with the ignition on, engine off and record the value. Command the actuator to 100% pulse width modulated (PWM) and recheck the position reading. The value should be 80 - 95%. Command the actuator to 0% PWM and recheck the position reading. The value should be 0 - 20%. Manually close and open the throttle and check the resistance. The resistance should range from 300 to 2,500 ohms. If the values are not in this range, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. If there is still an issue, suspect the engine control module (ECM). Refer to the warranty policy and procedures manual if an ECM is suspect.
P048821	Right-hand exhaust gas recirculation (EGR) throttle control circuit range/performance - signal amplitude less than minimum	Right-hand EGR throttle adaption is at the bottom limit	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR throttle position then command the throttle position setpoint to 0% pulse width modulated (PWM) and recheck the position. If the 0% PWM position is not 0 - 20%, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P048822	Right-hand exhaust gas recirculation (EGR) throttle control circuit range/performance - signal amplitude greater than maximum	Right-hand EGR throttle adaption is at the top limit	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR throttle position then command the throttle position setpoint to 0% pulse width modulated (PWM) and recheck the position. If the 0% PWM position is not 0 - 20%, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P048900	Right-hand exhaust gas recirculation (EGR) control circuit low	EGR valve sticking Intake air temperature (IAT) sensor circuit fault Ambient pressure (AMP) sensor circuit fault Manifold absolute pressure and temperature (MAPT) sensor circuit fault Mass air flow (MAF) sensor circuit fault EGR sensor circuit fault	Check for DTCs indicating a sensor fault. Check the IAT, AMP, MAPT, MAF and EGR sensor circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P049000	Right-hand exhaust gas recirculation (EGR) control circuit high	EGR valve sticking Intake air temperature (IAT) sensor circuit fault Ambient pressure (AMP) sensor circuit fault Manifold absolute pressure and temperature (MAPT) sensor circuit fault Mass air flow (MAF) sensor circuit fault EGR sensor circuit fault	Check for DTCs indicating a sensor fault. Check the IAT, AMP, MAPT, MAF and EGR sensor circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P049B00	Left-hand exhaust gas recirculation (EGR) insufficient flow detected	EGR control deviation lower limit (intake manifold tuning (IMT) valve closed) - bank specific control of EGR	Allow the engine to warm up, switch off and turn the ignition on. Using a datalogger function, check the EGR valve position and command the valve to 0% then 100% pulse width modulated (PWM). Check the values. If the valve positions are not 5 - 95%, install a new valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P049C00	Left-hand exhaust gas recirculation (EGR) excessive flow detected - signal amplitude greater than maximum	EGR control deviation upper limit left-hand bank (intake manifold tuning (IMT) valve closed) - bank specific control of EGR	Allow the engine to warm up, switch off and turn the ignition on. Using a datalogger function, check the EGR valve position and command the valve to 0% then 100% pulse width modulated (PWM). Check the values. If the valve positions are not 5 - 95%, install a new valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P133521	Right-hand exhaust gas recirculation (EGR) position sensor minimum/maximum stop performance - signal amplitude less than minimum	EGR valve circuit: short circuit to ground EGR valve fault	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR valve angles and command the valve to 0% pulse width modulated (PWM). Recheck the angle. The value should be 0 - 20%. If the value is outside this range, install a new valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P133522	Right-hand exhaust gas recirculation (EGR) position sensor minimum/maximum stop performance - signal amplitude greater than maximum	EGR valve circuit: short circuit to power EGR valve fault	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR valve angles and command the valve to 0% pulse width modulated (PWM). Recheck the angle. The value should be 0 - 20%. If the value is outside this range, install a new valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P140A21	Left-hand exhaust gas recirculation (EGR) sensor C circuit low - signal amplitude less than minimum	EGR valve circuit: short circuit to ground EGR valve fault	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR valve angle with the ignition on and the engine off. Command the valve angle to 0% pulse width modulated (PWM), then to 100% PWM and recheck the angles. The angles should be between 0 - 20% and 80 - 95%. If this is not the case, install a new valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P140B22	Left-hand exhaust gas recirculation (EGR) sensor C circuit high - signal amplitude greater than maximum	EGR valve circuit: short circuit to power	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR valve angle with the ignition on and the engine off. Command the valve angle to 0% pulse width modulated (PWM), then to 100% PWM and recheck the angles. The angles should be between 0 - 20% and 80 - 95%. If this is not the case, install a new valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P140E21	Left-hand exhaust gas recirculation (EGR) sensor C minimum/maximum stop performance - signal amplitude less than minimum	EGR valve adaption 1 bottom limit check	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR valve angle and command the valve to 0% pulse width modulated (PWM). Recheck the angle. The value should be 0 - 20%. If the value is outside this range, install a new valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P140E22	Exhaust gas recirculation (EGR) sensor C minimum/maximum stop performance - signal amplitude greater than maximum	EGR valve adaption 1 top limit check	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR valve angle and command the valve to 0% pulse width modulated (PWM). Recheck the angle. The value should be 0 - 20%. If the value is outside this range, install a new valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P141A27	Right-hand exhaust gas recirculation (EGR) sensor A circuit intermittent/erratic - signal rate of change above threshold	EGR valve position sensor circuit: intermittent high resistance EGR sensor fault	Check the EGR valve and circuits. Refer to the electrical guides. Start the engine and allow to warm up. Using a datalogger function, check the EGR valve position. After a further 5 seconds, recheck the position. If the value has increased by more than 80% per 10 ms, recheck the circuits. If no fault is found in the circuits, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P141B1C	Right-hand exhaust gas recirculation (EGR) sensor B circuit intermittent/erratic - circuit voltage out of range	EGR throttle position sensor circuit: intermittent high resistance EGR sensor fault	Check the EGR valve and circuits. Refer to the electrical guides. Start the engine and allow to warm up. Using a datalogger function, check the EGR valve position. After a further 5 seconds, recheck the position. If the value has increased by more than 80% per 10 ms, recheck the circuits. If no fault is found in the circuits, install a new EGR valve. REFER to: Right Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P141C27	Left-hand exhaust gas recirculation (EGR) sensor C circuit intermittent/erratic - signal rate of change above threshold	EGR valve position sensor circuit: intermittent high resistance EGR sensor fault	Check the EGR valve and circuits. Refer to the electrical guides. Start the engine and allow to warm up. Using a datalogger function, check the EGR valve position. After a further 5 seconds, recheck the position. If the value has increased by more than 80% per 10 ms, recheck the circuits. If no fault is found in the circuits, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P142D21	Left-hand exhaust gas recirculation (EGR) sensor D circuit low - signal amplitude less than minimum	EGR throttle position sensor circuit: short circuit to ground EGR throttle position sensor circuit: high resistance EGR sensor fault	Check the EGR throttle position sensor and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P142E22	Left-hand exhaust gas recirculation (EGR) sensor D circuit high - signal amplitude greater than maximum	EGR throttle position sensor circuit: short circuit to power EGR throttle position sensor fault	Check the EGR throttle position sensor and circuits. Refer to the electrical guides. If no fault is found in the circuits, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P142F1C	Left-hand exhaust gas recirculation (EGR) sensor D circuit intermittent/erratic - circuit voltage out of range	EGR throttle position sensor circuit: intermittent high resistance EGR sensor fault	Check the EGR valve and circuits. Refer to the electrical guides. Start the engine and allow to warm up. Using a datalogger function, check the EGR valve position. After a further 5 seconds, recheck the position. If the value has increased by more than 80% per 10 ms, recheck the circuits. If no fault is found in the circuits, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P213A00	Left-hand exhaust gas recirculation (EGR) throttle control circuit B open	Left-hand EGR throttle H Bridge electrical check	Using a datalogger function, check the EGR throttle position with the engine running and record the value. Command the actuator to 100% pulse width modulated (PWM) and recheck the position reading. The value should be 80 - 95%. Command the actuator to 0% PWM and recheck the position reading. The value should be 0 - 20%. Manually close and open the throttle and check the resistance. The resistance should range from 300 to 2,500 ohms. If the values are not in this range, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. If there is still an issue, suspect the engine control module (ECM). Refer to the warranty policy and procedures manual if an ECM is suspect.
P213B19	Left-hand exhaust gas recirculation (EGR) throttle control circuit B range/performance - circuit current above threshold	Left-hand EGR throttle overcurrent check	Using a datalogger function, check the EGR throttle position with the engine running and record the value. Command the actuator to 100% pulse width modulated (PWM) and recheck the position reading. The value should be 80 - 95%. Command the actuator to 0% PWM and recheck the position reading. The value should be 0 - 20%. Manually close and open the throttle and check the resistance. The resistance should range from 300 to 2,500 ohms. If the values are not in this range, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation. If there is still an issue, suspect the engine control module (ECM). Refer to the warranty policy and procedures manual if an ECM is suspect.
P213B21	Left-hand exhaust gas recirculation (EGR) throttle control circuit B range/performance - signal amplitude less than minimum	Left-hand EGR throttle adaption is at the lower limit	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR throttle position then command the throttle position setpoint to 0% pulse width modulated (PWM) and recheck the position. If the 0% PWM position is not 0 - 20%, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P213B22	Left-hand exhaust gas recirculation (EGR) throttle control circuit B range/performance - signal amplitude greater than maximum	Left-hand EGR throttle adaption is at the upper limit	Check the EGR valve and circuits. Refer to the electrical guides. Using a datalogger function, check the EGR throttle position then command the throttle position setpoint to 0% pulse width modulated (PWM) and recheck the position. If the 0% PWM position is not 0 - 20%, install a new EGR valve. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P213C00	Left-hand exhaust gas recirculation (EGR) throttle control circuit B low	EGR sensor circuits: short circuit (to ground/power/other circuits EGR sensor circuits: high resistance EGR sensor fault	Check the EGR sensor circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. Using a datalogger function, read the difference between the EGR throttle setpoint and the EGR throttle position. Check that the throttle is open and command the throttle closed. Check that the throttle position value increases to above 90%. Check the difference between setpoint and actual. This value should not exceed either maximum 5% or minimum -15%. Check that the EGR throttle is not sticking. Install a new valve as necessary. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P213D00	Left-hand exhaust gas recirculation (EGR) throttle control circuit B high	EGR sensor circuits: short circuit (to ground/power/other circuits EGR sensor circuits: high resistance EGR sensor fault	Check the EGR sensor circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. Using a datalogger function, read the difference between the EGR throttle setpoint and the EGR throttle position. Check that the throttle is open and command the throttle closed. Check that the throttle position value increases to above 90%. Check the difference between setpoint and actual. This value should not exceed either maximum 5% or minimum -15%. Check that the EGR throttle is not sticking. Install a new valve as necessary. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P214100	Right-hand exhaust gas recirculation (EGR) throttle control circuit A low	EGR sensor circuits: short circuit (to ground/power/other circuits EGR sensor circuits: high resistance EGR sensor fault	Check the EGR sensor circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. Using a datalogger function, read the difference between the EGR throttle setpoint and the actual throttle position, and the EGR throttle position. Check that the throttle is open and command the throttle closed. Check that the throttle position value increases to above 90%. Check the difference between setpoint and actual. This value should not exceed either maximum 5% or minimum -15%. Check that the EGR throttle is not sticking. Install a new valve as necessary. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.
P214200	Right-hand exhaust gas recirculation (EGR) throttle control circuit A high	EGR sensor circuits: short circuit (to ground/power/other circuits EGR sensor circuits: high resistance EGR sensor fault	Check the EGR sensor circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. Using a datalogger function, read the difference between the EGR throttle setpoint and the actual throttle position, and the EGR throttle position. Check that the throttle is open and command the throttle closed. Check that the throttle position value increases to above 90%. Check the difference between setpoint and actual. This value should not exceed either maximum 5% or minimum -15%. Check that the EGR throttle is not sticking. Install a new valve as necessary. REFER to: Left Exhaust Gas Recirculation Valve (303-08D Engine Emission Control - TDV8 3.6L Diesel, Removal and Installation). Clear the DTCs and test for normal operation.

Published: 11-May-2011

2007.0 Range Rover Sport (LS), 303-08D

Engine Emission Control - TDV8 3.6L Diesel (G939066)