Headlamp Wiring; Power Windows And Other Power Options; Windshield Wiper Fuses; Fuses And Circuit Breakers - GMC C-Series 2001 Owner's Manual

Headlamp Wiring

The headlamp 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 your headlamp wiring checked
right away.

Windshield Wiper Fuses

The windshield wiper motor is protected by a circuit
breaker inside the motor and a circuit breaker in the fuse
block. If the motor overheats, the wipers will stop until
the motor cools. If the overload is caused by an
electrical problem, be sure to get it fixed.

Fusible Links

A fusible link is a short piece of wire several gage sizes
smaller than the circuit it protects. It will melt in an
overload situation, opening the circuit.
Your starter relay and other circuits have these fusible
links. The size is printed on the insulation. If the
insulation is burned beyond recognition, consult
your GM dealer for the proper size. Replace a fusible
link with one of the same size and insulation type.
Fusible link insulation is a special purpose
-
high temperature material.
The hydraulic brake booster motor feed circuit and
starter relay circuit are protected by a fusible link.
Vehicles with a diesel engine have a fusible link for the
intake heater feed circuit.

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. This
protects the circuit until the current load returns to
normal or the problem is fixed.

Fuses and Circuit Breakers

The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses, circuit breakers,
-
maxi fuses and fusible links. This greatly reduces the
chance of a fire caused by an electrical problem. There
may be a fuse taped to the wiring harness near the
hydraulic brake booster and one near the generator also
taped to the wiring harness.
There are two circuit breaker/fuse blocks in your
vehicle: the instrument panel circuit breaker block and
-
the maxi fuse block.
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