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Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, headlamps ON.
  2. Verify the scan tool Front Fog Lamps Switch parameter changes between Active and Inactive while commanding the front fog lamps ON and OFF with the front fog lamp switch.
    • If the parameter does not change 

      Refer to Front Fog Lamp Switch Malfunction.

    • Go to next step: If the parameter changes 
  3. Verify the front fog lamps turn ON and OFF when commanding the Front Fog Lamps ON and OFF with a scan tool.
    • If the front fog lamps do not turn ON and OFF 

      Refer to Front Fog Lamps Malfunction.

    • Go to next step: If the front fog lamps turn ON and OFF 
  4. Verify the front fog lamp indicator on the instrument cluster turns ON and OFF while commanding the front fog lamps ON and OFF with the front fog lamp switch.
    • If the front fog lamp indicator does not turn ON and OFF 

      Refer to Front Fog Lamp Indicator Malfunction.

    • Go to next step: If the front fog lamp indicator turns ON and OFF 
  5. All OK.
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