Control Module

From rear of control module wiring harness connector, place Black voltmeter lead on terminal No. 2. Place Red lead on terminal No. 4. With driver's door open, 12 volts should be present. With driver's door closed, zero voltage should be present. If voltage is correct, ensure wiring harness and door switch are okay. Repair or replace as necessary. If wiring harness and door switch are okay, replace control module.