Driver's Door Fails To Unlock From Any Switch
- Turn headlights on. If left headlights operate, go to next step. If left headlights do not operate, diagnose headlight system first. See HEADLIGHT SYSTEMS article.
- Turn ignition off. Disconnect Gray 16-pin Central Timer Module (CTM) connector C2. CTM is located behind left side kick panel. Using DVOM, measure resistance between ground and Gray 16-pin CTM connector C2 terminal No. 5 (Pink/Black wire). See Figure . If resistance is more than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Pink/Black wire between Gray 16-pin CTM connector C2 terminal No. 5 and door lock motors.
- Replace CTM. See CENTRAL TIMER MODULE under REMOVAL & INSTALLATION.