LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2020 >> Enclave Premium, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Lighting System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Daytime Running Lamps Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the left park lamps turn ON and OFF when commanding the Left Park Lamps ON and OFF with a scan tool.
    • Go to next step: If the left park lamps turn ON and OFF 
  3. Verify the right park lamps turn ON and OFF when commanding the Right Park Lamps ON and OFF with a scan tool.
    • Go to next step: If the right park lamps turn ON and OFF 
  4. Verify the left daytime running lamp turns ON and OFF while commanding the Left Dedicated Daytime Running Lamp ON and OFF with a scan tool.
    • Go to next step: If the left daytime running lamp turns ON and OFF 
  5. Verify the right daytime running lamp turns ON and OFF while commanding the Right Dedicated Daytime Running Lamp ON and OFF with a scan tool.
    • Go to next step: If the right daytime running lamp turns ON and OFF 
  6. Refer to Circuit/System Testing - Ambient Light Sensor Malfunction.