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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Hybrid Engine Control System) >> Diagnostic Information and Procedures >> DTC P0C17 or P0C18 >> Circuit/System Verification

Circuit/System Verification

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. Ignition OFF, wait 2 minutes.
  2. Ignition ON, wait 2 minutes and then turn ignition OFF.
  3. Ignition ON, monitor DTC Status. DTC P0C17 and P0C18 should have passed last test.
    • If the DTC has passed, clear DTC Information. No further diagnosis is necessary.
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