Test 6: Key Unlock Warning Switch Circuit

With ignition switch in OFF position, remove wireless door lock ECU from under left side of instrument panel. See Figure. Measure voltage (backprobe) between ground and ECU connector terminal No. 10 (Red/Black wire). See Figure. Battery voltage should exist. If battery voltage does not exist, repair Red/Black wire. If battery voltage exists, proceed to next test given in TROUBLE SHOOTING SYMPTOMS  under TROUBLE SHOOTING.