Test 5: Left Front Door Pin Switch
Using Adapter (140 589 12 63 00), connect Breakout Box (129 589 00 21 00) to combination control module. See Figure. With ignition switch in RUN position, measure voltage between battery voltage and terminal No. 3 at breakout box. With door closed, less than one volt should exist. With door open, battery voltage should exist. If voltage is not as specified, check wiring. See WIRING DIAGRAMS . If wiring is okay, replace left front door switch.