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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 198 (Frame And Underbody) >> Diagnostic Information and Procedures >> Power Assist Step Malfunction >> Circuit/System Verification

Circuit/System Verification

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  1. Observe the scan tool ASC Disable Switch parameter while activating and deactivating the power assist steps. The reading should change between Active and Inactive.
    • If the parameter does not change between the specified values, refer to ASC Disable Switch Circuit Test in Circuit/System Testing 
  2. Power assist steps enabled, OPEN and CLOSE each vehicle door, the assist steps should extend when the door is OPENED, and retract when the door is CLOSED.
    • If the function does not perform as specified, refer to ASC Actuator Circuit Test in Circuit/System Testing .
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