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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1452 (HYBRID ENGINE CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P0C2FCIRCUIT/SYSTEM TESTING
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Circuit/System Testing

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Circuit/System Testing
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: Diagnose ECM DTCs P0335 and P0336 prior to performing this procedure.
  1. Repair the following conditions if observed:
    • ECM CKP sensor DTCs
      • IMPORTANT: If mechanical binding of the engine is observed, internal transmission damage may have resulted when drive motor 1 attempted to crank the seized engine.
    • Mechanical condition which would cause drive motor 1 to rotate without a corresponding rotation of the engine.
  2. Ignition ON, retest for DTC P02CF.
    • If the DTC resets, test each drive motor generator position sensor for proper operation. Refer to DTC P1B03 or P1B04 .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.