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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Lighting System) >> Diagnostic Information and Procedures >> Headlamps Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the scan tool Headlamps On Switch parameter changes between Active and Inactive while commanding the headlamp ON and OFF with the headlamp switch.
    • If the parameter does not change 

      Refer to Headlamp Switch Malfunction.

    • If the parameter changes 
  3. Verify the scan tool Automatic Headlamps Disable Switch parameter changes between Active and Inactive while commanding the automatic lamp control ON and OFF with the headlamp switch.
    • If the parameter does not change 

      Refer to Headlamp Switch Malfunction.

    • If the parameter changes 
  4. Verify the scan tool Headlamps Flash Switch parameter changes between Active and Inactive while commanding the flash to pass ON and OFF with the turn signal/multifunction switch.
    • If the parameter does not change 

      Refer to Turn Signal/Multifunction Switch Malfunction.

    • If the parameter changes 
  5. Verify the scan tool High Beam Select Switch parameter changes between Active and Inactive while commanding the high beams ON and OFF with the turn signal/multifunction switch.
    • If the parameter does not change 

      Refer to Turn Signal/Multifunction Switch Malfunction.

    • If the parameter changes 
  6. Verify the left low beam/daytime running lamp turn ON and OFF when commanding the Left Low Beam/Daytime Running Lamp ON and OFF with a scan tool.
    • If the left low beam/daytime running lamp does not turn ON and OFF 

      Refer to Headlamps Malfunction - Low Beam.

    • If the left low beam/daytime running lamp turns ON and OFF 
  7. Verify the right low beam/daytime running lamp turn ON and OFF when commanding the Right Low Beam/Daytime Running Lamp ON and OFF with a scan tool.
    • If the right low beam/daytime running lamp does not turn ON and OFF 

      Refer to Headlamps Malfunction - Low Beam.

    • If the right low beam/daytime running lamp turns ON and OFF 
  8. Verify the high beams turn ON and OFF when commanding the High Beams ON and OFF with a scan tool.
    • If the high beams do not turn ON and OFF 

      Refer to Headlamps Malfunction - High Beam.

    • If the high beams turn ON and OFF 
  9. Verify the high beam indicator on the instrument cluster turns ON and OFF while commanding the All Indicators Test ON and OFF with a scan tool.
    • If the high beam indicator does not turn ON and OFF 

      Refer to High Beam Indicator Malfunction.

    • If the high beam indicator turns ON and OFF 
  10. All OK.
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