Circuit Test
- Remove switch bezel. Remove 4 screws holding switches to switch plate. Separate terminal plate halves to expose wire terminal ends. Turn ignition switch to "ON" position. Connect one lead of test light to black wire and connect other lead to Red terminal. Repeat test with second Black wire in master switch.
- If test light does not illuminate, remove test light lead that was on Black wire terminal and connect it to chassis ground. If test light illuminates, an opening is present between master switch and ground.
- If test light still does not illuminate, check for a defective circuit breaker or an opening in Red wire from circuit breaker to master switch.