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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 P0601-P0604, P0606, or P062F >> 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. Test for HPCM DTC P0562.
    • Perform HPCM P0562 diagnosis if set.
  2. Clear the DTC information.
  3. Turn the ignition OFF for 1 minute.
  4. Turn the ignition ON.
  5. Retest for DTCs P0601, P0602, P0603, P0604, P0606 and P062F.
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