ECU Power Source & Ground Test
With ignition off, remove luggage compartment left side panel. Remove wireless door lock ECU to gain access to ECU connector. Using DVOM, backprobe ECU connector and measure voltage between wireless door lock ECU terminals No. 8 (Red wire) and No. 1 (White/Black wire). See Fig 1. If DVOM does not read between 10-14 volts, check for an open in White/Black wire and Red wire.