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Home >> Chevrolet >> 2011 >> Chevy Express G2500, Van Cargo Extended, 6.6 L >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 6.6L (LGH) - DTC P0016 Through DTC P11DC >> Diagnostic Information and Procedures >> DTC P0315 >> Testing >> Circuit/System Testing

Circuit/System Testing

NOTE:

You must perform the Circuit/System Verification before proceeding with Circuit/System Testing.

  1. Perform the Crankshaft Position Reluctor Wheel Learn Procedure. Refer to, Crankshaft Position Reluctor Wheel Learn .
    • If the Crankshaft Position Reluctor Wheel Learn Procedure cannot be performed successfully, inspect for the following conditions:
    • Interference in the signal circuit of the crankshaft position sensor
    • The ignition switch is left in the ON position, until the battery is discharged
    • An ECM power disconnect, with the ignition ON, that may have erased the Crankshaft Position Reluctor Wheel Learn values and set DTC P0315
    • Any debris between the crankshaft position sensor and the reluctor wheel
    • A damaged or misaligned reluctor wheel
    • A damaged crankshaft-Refer to Crankshaft and Bearing Cleaning and Inspection .
    • Excessive crankshaft runout
    • Any worn crankshaft main bearings
      • If the ECM is still unable to complete the learn procedure, replace the ECM.
  2. Ignition OFF. Verify all vehicle systems are OFF. This may take up to 2 minutes.
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