GM Full-Size Trucks 1980-1987 Repair Guide

Circuit Breakers


A circuit breaker is an electrical switch which breaks the circuit in case of an overload. All models have a circuit breaker in the headlight switch to protect the headlight and parking light systems. An overload may cause the lamps to flicker or flash on and off, or in some cases, to remain off. Windshield wiper motors are protected by a circuit breaker at the motor.