Switch Voltage
- Remove switch from trim panel. Separate multiple terminal block on wiring harness from switch body. Connect one lead of test lamp to battery wire terminal (Black wire on FWD models). Connect other lead to ground wire terminal (Tan wire on FWD models).
- If test lamp comes on, wiring between battery and switch is okay. If lamp does not light, check 30 amp circuit breaker in fuse block, check for broken wire or poor ground.