Troubleshooting Hints - Illuminated Entry and Security Lighting

1. If only one Door Latch Switch does not turn on the lights, check the suspect Door Latch Switch and related wiring for an open (see schematic).
2. If lights turn on when a door handle is lifted but do not stay on for approximately 30 seconds, replace the Headlight Switch.
3. If the Courtesy Lights turn on in Illuminated Entry, but cannot be turned on with the Headlight Switch, check for a poor connection. If OK, replace the Headlight Switch.
4. Check that grounds G119, G200, and G304 are clean and tight.
5. If one lamp does not light, check bulb and related wiring (see schematic).

^ Check for a broken (or partially broken) wire inside of the insulation which could cause system failure but prove "GOOD" in a continuity/voltage check.
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems.