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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 488 (Lighting System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Adaptive Forward Lighting Malfunction >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the appropriate headlamp assembly.
  2. Test for less than 5 Ω between the ground circuit terminal listed below and ground:
    • Left headlamp - terminal 4
    • Right headlamp - terminal 10
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Disconnect the harness connector at the headlamp right.
  4. Ignition ON, headlamps ON, connect a test lamp between the ignition circuit terminal 1 and ground. The test lamp should illuminate.
    • If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
  5. If all circuits test normal, replace the appropriate headlamp assembly. Verify that the customer concern is not still present.
    • If the customer concern is still present, replace the headlamp right.
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