Liftgate Ajar Circuit Open
NOTE:
Perform BODY VERIFICATION TEST
under VERIFICATION TESTS after each repair.
- Open liftgate. Using scan tool, select INPUTS/OUTPUTS and monitor LIFTGATE AJAR SW state. If LIFTGATE AJAR SW state is CLOSED, replace Body Control Module (BCM). See BODY CONTROL MODULE under REMOVAL & INSTALLATION. If LIFTGATE AJAR SW state is not CLOSED, go to next step.
- Disconnect left or right liftgate ajar switch connector. See Fig 1 . Connect test light between battery positive post and liftgate ajar switch connector terminal No. 1 (Black wire). If test light illuminates, go to next step. If test light does not illuminate, repair open in Black wire between liftgate ajar switch and ground.
- Disconnect junction block C1 connector. See Figure . Using DVOM, measure resistance in Tan/Black wire between liftgate ajar switch connector terminal No. 2 and junction block C1 connector terminal No. 25. See Figure . If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Black wire between liftgate ajar switch and junction block.
- Remove Body Control Module (BCM) from junction block. See BODY CONTROL MODULE under REMOVAL & INSTALLATION. Using DVOM, measure resistance between junction block at rear of junction block BCM connector terminal No. 21 and junction block connector C1 terminal No. 25. See Figure and Figure . If resistance is less than 5 ohms, replace BCM. If resistance is greater than 5 ohms, replace junction block.