Circuit Test
- Remove switch bezel. Remove 4 switch-to-switch plate screws. 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 for second Black wire in master switch. See Figure for wiring schematic.
- If test light does not illuminate, remove test light lead from Black wire terminal and connect it to chassis ground. If test light illuminates, an open exists between master switch and ground.
- If test light still does not illuminate, check for a defective circuit breaker or an open in Red wire from circuit breaker to master switch.