1994 GMC Safari Owner's Manual - Page 284

Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from shortcircuits by a combination of fuses, circuit breakers, and fusible thermal links in the wiring itself. This greatly reduces the chance of fires caused by electrical problems. See "Fuses and Circuit Breakers'' in the Indexfor more information. Headlights The headlight wiring is protected by a circuit breaker in the light switch. An electrical overload will cause the lights to go on and off, or in some cases to remain off. If this happens, have yourheadlight wiring checked right away. Windshield Wipers The windshield wiper motor is protected a circuit breaker and a fuse. If by the motor overheats due to heavy snow, etc., the wiper willstop until the motor cools, If the overload is caused by some electrical problem and not snow, etc., besure to get it fixed. Power Windows and Other Power Options Circuit breakers in the fuse panel protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem fixed or goes is away. Trailer Wiring Harness The optional seven-wire trailer wiring harness is protected by an in-line fuse in the battery feed wire. This fuse is near the junction block. See "Trailer Wiring Harness"in the Index. 6-66