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Home >> Cadillac >> 2011 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1220 (Hybrid Engine Control System) >> Diagnostic Information and Procedures >> DTC P0C1A >> Circuit/System Testing
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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.
  1. Inspect for DTCs P0A45, P0A46, P0A79, P0BFE, P0C04, P0C08, P0C0E, P0C18, P0C4F, P0C57, P0C58, P0C61, P0C62, P1AFE, P1B04, or P1B10.
  2. Repair the following conditions if observed:
      IMPORTANT: If a seized or binding drive axle is observed, internal transmission damage may have occurred.
    • Seized or binding drive axle
    • Seized or binding transfer case (4 wheel drive option)
    • Seized or binding braking system
  3. Drive the vehicle, retest for DTC P0C1A.
    • If the DTC resets, program the PIM with the latest software version and recheck for DTCs. If the DTC resets after programming or if the PIM already contains the latest software version, replace the drive motor generator.
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