GMC T-Series 1999, Owner'S Manual, Page: 254 / 344

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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 inside the
battery box and one near the generator also taped to the
wiring harness.
When a circuit overloads, a circuit breaker will open and
break the circuit. The circuit breaker will also become
hot when it opens. When it cools down, it will
reset itself.
There are two circuit breaker/fuse blocks in your
vehicle: the instrument panel circuit breaker block and
the maxi
-
fuse block.
Instrument Panel Circuit Breaker and Relay Blocks
These circuit breaker and relay blocks are located on top
of the instrument panel on the passenger’s side of
the cab.
To access the circuit breaker or relay block, remove the
cover by lifting up on the front and rotating it backward.
To replace the cover, put the tabs at the rear of the cover
into the slots on the instrument panel and rotate the
cover down to snap into place.