GM Full Size Vans 1967-1986 Repair Guide

Circuit Breakers


A circuit breaker is a 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 lights to flash on and off. 1974-75 wiper motors have a circuit breaker at the motor. 1975-86 rear mounted air conditioners have a circuit breaker at the firewall.