Test 30A - Diagnosing Courtesy Light Control Circuit
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION. For wiring diagrams, see WIRING DIAGRAMS
article in the ENGINE PERFORMANCE Section. Perform TEST VER - 1A after each repair.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
- If rear overhead console lights are only lights inoperative, go to step 4). Gain access to any inoperative courtesy lights. Replace any open bulbs. If bulbs are not open, measure voltage of switched battery feed circuit (Pink/Light Blue wire) at each inoperative bulb using DRB-II in voltmeter mode. If voltage is less than 10 volts, repair open Pink/Light Blue wire to bulb. If voltage is more than 10 volts, go to next step.
- Turn ignition off. Gain access to body controller, located under left side of instrument panel. Disconnect Blue body controller connector. Using an external ohmmeter, measure resistance of courtesy light control circuit (Yellow wire) between Blue body controller connector terminal No. 25 and courtesy light bulb connector.
- If resistance is more than 5 ohms, repair open Yellow wire. If resistance is less than 5 ohms, reconnect courtesy bulbs and body controller, then retest system.
- Gain access to overhead console lights. Replace any open bulbs. If bulbs are not open, measure voltage of switched battery feed circuit (Gray wire) at each inoperative bulb using DRB-II in voltmeter mode. If voltage is less than 10 volts, repair open Gray wire to bulb. If voltage is more than 10 volts, repair open Yellow wire.