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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 >> Front Fog Lamps Malfunction >> Circuit/System Verification

Circuit/System Verification

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 ON, observe the scan tool Front Fog Lamps Switch parameter while turning the front fog lamps switch ON and OFF. The parameter should change between Active and Inactive.
    • If the parameter does not change between the commanded states, refer to Fog Lamp Switch Malfunction.
  2. Observe the scan tool Front Fog Lamps Relay Command parameter while turning the front fog lamps switch ON and OFF. The parameter should change between Active and Inactive.
    • If the parameter does not change between the commanded states, refer to Fog Lamps Malfunction.
  3. Command the Lamp Test ON and OFF with a scan tool. The fog lamps indicator should turn ON and OFF when changing between the commanded states.
    • If the fog lamps indicator illuminates during the test, replace the BCM.
    • If the fog lamps indicator does not illuminate during the test or remains illuminated at all times, replace the instrument cluster.
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