A Symptoms - Lighting Systems

SYMPTOMS - LIGHTING SYSTEMS

IMPORTANT: Complete the following steps before using the symptom tables.

1. Perform Diagnostic System Check - Lighting Systems before using the Symptom Tables in order to verify that all of the following are true:
- No DTCs are set.
- The control module can communicate via the serial data link. Diagnostic System Check - Lighting Systems
2. Review the system operation in order to familiarize yourself with the system functions. Refer to Exterior Lighting Systems Description and Operation and Interior Lighting Systems Description and Operation.

Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the Lighting System.
- 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.

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
- 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
- Headlamps Always On - Low or High Beam
- Headlamps Inoperative - High Beams
- Headlamps Inoperative - Low Beams
- Headlamps Inoperative - Low and High Beams
- Headlamps Inoperative - Flash to Pass
- High Beam Indicator Inoperative
- Illuminated Entry Lamps Inoperative
- Interior Backlighting Does Not Dim
- Interior Backlighting Inoperative
- Instrument Panel (I/P) Compartment Lamp Inoperative
- Instrument Panel (I/P) Compartment Lamp Always On
- Park Lamps Always On
- Park Lamps Inoperative
- Reading Lamp(s) Always On
- Reading Lamp(s) Inoperative
- Rear Compartment Lamp(s) Always On
- 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
- Vanity Mirror Lamp(s) Always On
- Vanity Mirror Lamp(s) Inoperative