Chevrolet B7 2001 Owner's Manual page 160

Medium duty b7 chassis
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Electrical System
Add-On Electrical Equipment
NOTICE:
Don't add anything electrical to your vehicle
unless you check with your dealer first. Some
electrical equipment can damage your vehicle
and the damage wouldn't be covered by your
-
warranty. Some add
on electrical equipment
can keep other components from working as
they should.
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker in the
lamp switch. An electrical overload will cause the lamps to
go on and off, or in some cases to remain off. If this happens,
have your headlamp wiring checked right away.
In-Line Fuses
-
A sealed in
line fuse is in the main engine harness near
the generator to provide protection for the generator R
terminal output lead. To remove the fuse, release the
connector in half. Remove the failed fuse and install a
new fuse. Press the fuse holder back together until the
halves and the lock have seated.
On gasoline engine vehicles, this protected circuit
provides a control signal for the engine alarm system
and hydraulic brake control system.
On vehicles with diesel engines, this protected circuit
controls the tachometer, engine alarm system and
hydraulic brake control system.
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