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Home >> Cadillac >> 2014 >> SRX Performance, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Trailer Lamps Malfunction (With U4G) >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the center high mounted stop lamp on the vehicle turns ON and OFF when commanding the Center Brake Lamp ON and OFF with a scan tool.
    • If the center high mounted stop turns ON and OFF 

      Refer to Circuit/System Testing (below).