NOTE: High load operation in high ambient temperatures. No action is necessary; this is a “silent” fault where the fan will be turned on. This fault is a concern only if the fan-on times are excessive but coolant temperatures are in the normal operating range. PROBABLE CAUSES:1. If 110-0 is active, repair this first.2. Check for EGR exhaust leaks at the EGR valve actuator.3. Remove the actuator cooler lines and fittings, check for kinks/plugs or leaks.4. EGR valve actuator failure.

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. If 110-0 is active, repair this first.2. Check for EGR exhaust leaks at the EGR valve actuator.3. Remove the actuator cooler lines and fittings, check for kinks/plugs or leaks.4. EGR valve actuator failure.

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Wiring between pin 1 of the EGR valve connector and pin 61 of the 120-pin MCM connector.2. EGR valve failure.

DESCRIPTION:The fault code sets when the motor control module (MCM) detects that the exhaust gas recirculation (EGR) valve position is incorrect. MONITORED PARAMETER:EGR position error. TYPICAL ENABLING CONDITIONS:Engine running MONITOR SEQUENCE:None EXECUTION FREQUENCY:Always enabled TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:None VERIFICATION:Engine idle PROBABLE CAUSES:1. If any voltage codes exist, fix those first.2. EGR valve actuator pull rod.3. EGR actuator.4. EGR valve.5. Wiring between the EGR actuator harness and the ECM.6. ECM failure.

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Wiring between pin 1 of the EGR valve connector and ground.2. EGR valve failure.