Key Unlock Warning Switch Circuit Test

Ensure key is not in ignition switch. Backprobe for voltage between wireless door lock ECU terminal No. 10 (Yellow wire) and ground. See Figure. If battery voltage exists, go to next test listed in TROUBLE SHOOTING . If battery voltage does not exist, check circuit between wireless door lock ECU and key unlock warning switch. See WIRING DIAGRAMS . Repair or replace as necessary. Retest system operation.