A Symptoms - Lighting Systems

IMPORTANT: The following steps must be completed before using the symptom tables.

1. Perform Diagnostic System Check - Lighting Systems before using the Symptom Tables in order to verify that there are no DTCs set. Diagnostic System Check - Lighting Systems
2. Review the system description in order to familiarize yourself with the system functions. Refer to Exterior Lighting Systems Description and Operation or Interior Lighting Systems Description and Operation.

Visual/Physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the Lighting System. Refer to Checking Aftermarket Accessories in Diagrams.
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent and Poor Connections in Diagrams.

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
^ Backup Lamps Always On
^ Backup Lamps Inoperative
^ Cornering Lamps Inoperative
^ Courtesy Lamps Always On
^ Courtesy Lamps Inoperative
^ Daytime Running Lamps (DRL) Inoperative
^ Fog Lamp Indicator Inoperative
^ Fog Lamps Always On
^ Fog Lamps Inoperative
^ Hazard Lamps Inoperative
^ Headlamp Switch On Indicator Inoperative
^ Headlamps Always On - Low or High Beam
^ Headlamps Inoperative - Low Beams (Standard) or Headlamps Inoperative - Low Beams (High Intensity Discharge (HID))
^ Headlamps Inoperative - High Beams
^ Headlamps Inoperative - Flash to Pass
^ Headlamps Required Indicator Always On
^ Headlamps Required Indicator Inoperative
^ High Beam Indicator Inoperative
^ Illuminated Entry Lamps Inoperative
^ Interior Backlighting Does Not Dim
^ Interior Backlighting Inoperative
^ IP Compartment Lamp Inoperative
^ License Lamps Inoperative
^ Marker Lamps Inoperative
^ Park Lamps Always On
^ Park Lamps Inoperative
^ Reading Lamp(s) Inoperative
^ Rear Compartment Lamp(s) Inoperative
^ Stop Lamps Always On
^ Stop Lamps Inoperative
^ Turn Signal Lamps and/or Indicators Always On or Flashing
^ Turn Signal Lamps and/or Indicators Inoperative
^ Twilight Sentinel Indicator Always On
^ Twilight Sentinel Indicator Inoperative
^ Twilight Sentinel Inoperative
^ Vanity Mirror Lamp(s) Inoperative