1995 GMC Sonoma Owner's Manual - Page 278

Headlamps The headlampwiring 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 yourheadlamp wiring checked right away. Windshield Wipers The windshield wiper motor is protected by a circuit breaker and a fuse. If the motor overheats due to heavy snow, etc., the wiper will stop until the motor cools.If the overloadis caused by some electricalproblem and not snow, etc., be sure 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 is tooheavy, the circuit breaker load opens and closes, protecting the circuit until the problem is fixed. Trailer Wiring Harness The optional seven-wire trailer wiring harness is protected by an in-line fuse in the battery feed wire. This fuseis near the junctionblock in the front, driver's side fender. See "Trailer Wiring Harness" in the Features & Controls section. Fuse Block The fuseblock is in the instrument panel on the driver's side. Remove the cover by turning the fastener counterclockwise. Then you can remove fuses with a fuse extractor. Extra fuses are provided in the cover. 6-60