Circuit Breaker
- Disconnect yellow wire from circuit breaker. Connect a test lamp between yellow wire and chassis ground. Turn ignition switch to "ON" position. If lamp does not light, an open circuit exists in yellow wire or ignition switch is defective.
- Reconnect yellow wire to circuit breaker and disconnect blue wire from circuit breaker. Connect a test lamp between blue wire and ground. If lamp lights with ignition switch "ON", circuit breaker is good, if lamp does not light, circuit breaker is defective.