Interior Lighting Test 5A - Courtesy Lights Stay On
NOTE:
Perform INTERIOR LIGHTING TEST 1A
before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION
. For wiring diagrams, refer to WIRING DIAGRAMS
. After each repair, perform TEST VER-1A
.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting any module connector. Ensure all connectors are clean and tight.
- Ensure all doors are closed and courtesy light switch is off. Using scan tool, check status of all door ajar switches. If scan tool displays SWITCH: CLOSED on any door, go to DOOR AJAR TEST 1A . If scan tool does not display SWITCH: CLOSED on any door, go to next step.
- Using scan tool, check status of courtesy light switch. If scan tool displays COURTESY LAMP SWITCH: ON, go to INTERIOR LIGHTING TEST 5B . If scan tool does not display COURTESY LAMP SWITCH: ON, go to next step.
- If vehicle is equipped without an anti-theft system, go to next step. If vehicle is equipped with an anti-theft system, check status of door key cylinder switch using scan tool. If scan tool displays DOOR KEY CYL: CLOSED, go to INTERIOR LIGHTING TEST 5C . If scan tool does not display DOOR KEY CYL: CLOSED, go to next step.
- Remove courtesy light relay in junction block. See Figure under INTERIOR LIGHTING TEST 2A. Junction block is located behind right kick panel. If courtesy lights do not go out when relay is removed, repair courtesy light driver circuit (Yellow wire) for short to ground. If courtesy lights go out when relay is removed, go to next step.
- Turn ignition on, engine off. Ensure all door ajar switches are open. Using scan tool in ohmmeter mode, measure resistance at terminal No. 85 (Brown/Light Green wire) on courtesy light relay connector. If resistance is less than 500 ohms, repair short to ground in Brown/Light Green wire. If resistance is 500 ohms or more, replace courtesy light relay.