Circuit Breaker Test
- Disconnect Yellow (Violet wire on Cherokee and Wagoneer) from circuit breaker and connect a 12-volt test lamp between Yellow (Violet) wire and ground. Turn ignition switch to "ON" position. If lamp does not light, an open exists in Yellow (Violet) wire or ignition switch is defective.
- Reconnect Yellow (Violet) wire to circuit breaker. Disconnect wire from circuit breaker and connect test lamp to circuit breaker terminal and ground. If lamp lights, circuit breaker is good. If lamp does not light, circuit breaker is defective.