Door Unlock Detection Switch Circuit

Remove door trim to access door lock motor assembly. Disconnect switch connector. Check continuity between terminal No. 1 and No. 4 with door unlocked. See DOOR UNLOCK DETECTION SWITCH TERMINAL IDENTIFICATION  table. Continuity should exist. Check continuity with door locked. Continuity should not exist. If continuity is not as specified, replace switch. If continuity is as specified, check wiring between switch, ECU and ground. Repair as needed. If wiring is okay, check ECU. See PIN VOLTAGE TESTS . If found to be defective, replace ECU and retest system.