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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Door Lock Systems & Door Handles) >> Diagnostic Information and Procedures >> DTC B396B >> Circuit/System Testing

Circuit/System Testing

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  1. Disconnect the liftgate control module connector C3.
  2. Using a DMM, verify that approximately 10 ohms of resistance is present between the liftgate clutch control circuit terminals in the harness connector.
    • If excessive resistance is present between the clutch control circuits, replace the liftgate motor assembly.
  3. Using a DMM, verify that no continuity is present between either of the clutch control circuit terminals in the harness connector and ground.
    • If continuity is present from a clutch control circuit and ground, replace the liftgate motor assembly.
  4. If the liftgate motor control circuits test normal, replace the liftgate control module.
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