Master Switch Circuit
- Remove escutcheon and housing from master switch. Separate terminal plate by releasing retainer hooks to expose terminal ends. Turn ignition on.
- Using a 12-volt test light, connect one lead to Black wire and other lead to Red terminal. Repeat test at second Black wire. If test light does not glow in either test, remove lead to Black terminal and connect to chassis ground.
- If test light glows, an open exists between master switch and ground. If test light does not glow, it indicates a defective circuit breaker or an opening in the Red wire from circuit breaker to master switch.