EGR Valve Position - Data Erratic, Intermittent, or Incorrect
•To validate the repair, perform a key cycle and leave the key in the ON position for 2 minutes. Then start the engine and let it idle for 1 minute. •The fault code status displayed by INSITE™ electronic service tool will change to INACTIVE immediately after the diagnostic runs and passes. •The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes. For On-Board Diagnostics (OBD) engines, the ECM will extinguish the Malfunction Indicator Lamp (MIL) after four consecutive trips where the diagnostic runs and passes. •The Reset All Faults command in INSITE™ electronic service tool can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications.
What you'll see
No driver-visible symptom recorded.
System reaction
•The ECM illuminates the amber CHECK ENGINE lamp and/or the Malfunction Indicator Lamp (MIL) immediately when the diagnostic runs and fails. •Exhaust Gas Recirculation (EGR) valve operation will be disabled. •Engine torque will be reduced if the engine is operated for an extended period of time with this fault active.
Diagnostic depth
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The Engine Control Module (ECM) detected that the EGR valve was unable to reach the commanded position.