Key Unlock Warning Switch Circuit

Remove key from ignition switch. Remove wireless door lock ECU (leave wire harness connected). Using DVOM, measure voltage (backprobe) between ground and terminal No. 10 (Yellow wire) at wireless door lock ECU harness connector. See Figure. If battery voltage is present, perform next inspection listed in symptom diagnosis table. See SYMPTOM DIAGNOSIS . If battery voltage is not present, repair harness and/or connectors between wireless door lock ECU and key unlock warning switch. See WIRING DIAGRAMS .