A Symptoms - Lighting Systems

IMPORTANT: Review the system operation in order to familiarize yourself with the system functions.

Refer to the circuit description:
- Headlights Circuit Description (Domestic) or Headlights Circuit Description (Export)
- Headlights/Daytime Running Lights (DRL) Circuit Description (Domestic) or Headlights/Daytime Punning Lights (DRL) Circuit Description (Export)
- Headlight Leveling Circuit Description
- Exterior Lights Circuit Description (Domestic) or Exterior Lights Circuit Description (Export)
- Backup Lights Circuit Description (Domestic) or Backup Lights Circuit Description (Export)
- Interior Lights Circuit Description
- Interior Lights Dimming Circuit Description

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 Inoperative
- Backup Lamp Inoperative - One Lamp (Export) or Backup Lamp Inoperative - One Lamp (Domestic)
- Courtesy or Dome Lamps Always On
- Dome Lamps Inoperative with LF Door Open
- Dome Lamps Inoperative with IP Dimming Switch
- Daytime Running Lamps (DRL) Inoperative, Headlamp Switch Operates Normally (Domestic) or Daytime Running Lamps (DRL) Inoperative, Headlamp Switch Operates Normally (Export)
- Daytime Running Lamps (DRL) Indicator Inoperative
- Fog Lamps Always On - Rear
- Fog Lamps Inoperative - Rear
- Fog Lamp Switch Illumination Lamp Inoperative
- Fog Lamp Indicator Inoperative
- Hazard Lamps Inoperative
- Head/amps Inoperative - Left Low and High Beam
- Head/amps Inoperative - Right Low and High Beam
- Head/amps Inoperative - Left Low Beam
- Head/amps Inoperative - Right Low Beam
- Head/amps Inoperative - Low Beams (Domestic) or Head/amps Inoperative - Low Beams (Export)
- Head/amps - Low Beams On with Headlamp Switch Off (Domestic) or Head/amps - Low Beams On with Headlamp Switch Off (Export)
- Headlamps Inoperative - Left High Beam
- Head/amps Inoperative - Right High Beam
- Head/amps Inoperative - High Beams (Domestic) or Head/amps Inoperative - High Beams (Export)
- Head/amps Inoperative - Low and High Beams
- Head/amps, Daytime Running Lamps (DRL) On With Park Brake Applied/led
- Head/amps, Daytime Running Lamps (DRL) On with Headlamp Switch On (Domestic) or Head/amps, Daytime Running Lamps (DRL) On with Headlamp Switch On (Export)
- Headlight Leveling Inoperative - One Actuator
- Headlight Leveling Inoperative
- Headlight Leveling mop - Actuator Switch illum
- High Beam Indicator Inoperative
- IP Compartment Lamp Inoperative
- Vanity Mirror Lamp(s) Inoperative
- Underhood Lamp Inoperative
- Instrument Panel Lamps Do Not Dim
- Instrument Panel Lamps Inoperative
- Window Switch Lamp Inoperative
- HVAC Switch Lamp Inoperative
- Door Lamp Inoperative - LF
- Door Lamp Inoperative - RF
- License Lamps Inoperative (Domestic) or License Lamps Inoperative (Export)
- Park Lamps Inoperative (Domestic) or Park Lamps Inoperative (Export)
- Park Lamp Inoperative - LF
- Park Lamp Inoperative - RF
- Side Marker Lamp Inoperative - One Lamp (Domestic) or Side Marker Lamp Inoperative - One Lamp (Export)
- Side Marker Lamps Inoperative (Domestic) or Side Marker Lamps Inoperative (Export)
- Stop Lamps Inoperative
- Stop Lamps Inoperative - One
- Stop Lamps Inoperative - Center High Mounted (Domestic) or Stop Lamps Inoperative - Center High Mounted (Export)
- Stop Lamps Always On
- Tall Lamps Inoperative - LR (Domestic) or Tall Lamps Inoperative - LR (Export)
- Tall Lamps Inoperative - RR (Domestic) or Tall Lamps Inoperative - RR (Export)
- [1][2]Turn Signal Lamp Inoperative - LF (Domestic) or Turn Signal Lamp Inoperative - LF (Export)
- [1][2]Turn Signal Lamp Inoperative - RF (Domestic) or Turn Signal Lamp Inoperative - RF (Export)
- Turn Signal Lamps Inoperative - LR (Domestic) or Turn Signal Lamps Inoperative - LR (Export)
- [1][2]Turn Signal Lamp Inoperative - RR (Domestic) or Turn Signal Lamp Inoperative - RR (Export)
- Turn Signal Lamps and Indicators Inop - One Side
- Turn Signal Indicators Inoperative
- Turn Signal Indicators Inoperative - Left
- Turn Signal Indicators Inoperative - Right