PREVENTIVE MAINTENANCE ELECTRICAL SYSTEM
Regional Haul
(R05/10) Y53-6033 – 213 –
Electrical System
CAUTION: Do not modify or improperly repair
the vehicle’s electrical system or power distri-
bution box. All electrical repairs should be
performed by an authorized Peterbilt dealer.
Improper repair or modifications will void
your warranty and/or cause serious damage
to your vehicle.
Location Of Fuses
Fuses are located inside the cab, left side, next to the
driver’s door.
Fuse Inspection and Replacement
WARNING! Do not replace a fuse with one of a
higher rating. Doing so may damage the elec-
trical system and cause a fire, possibly caus-
ing death, personal injury or property
damage.
CAUTION: Before replacing a fuse, turn OFF
all lights and accessories and remove the
ignition key to avoid damaging the electrical
system.
WARNING! Never patch fuses with tin foil or
wire. This may cause serious damage else-
where in the electrical circuit, and it may
cause a fire, possibly causing death, personal
injury or property damage.
CAUTION: If a circuit keeps blowing fuses,
have the electrical system inspected for a
short circuit or overload by an authorized
Peterbilt dealer as soon as possible. Failure to
do so could cause serious damage to the
electrical system and/or vehicle.
NOTE: If a fuse of the same rating is not avail-
able, a fuse of a lower rating may be temporarily
substituted. You can also use a fuse from a circuit
you can temporarily do without (for example, an
accessory circuit or radio).
