10 Maintenance and service
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Electrical system
The electrical system is single-pole and uses
the chassis and engine casing as a conductor.
The car has a voltage-regulated AC alterna-
tor.
The size, type and performance of the starter
battery depend on the car's equipment and
function.
IMPORTANT
If the starter battery is replaced, make sure
you replace it with a battery with the same
cold starting capacity and type as the orig-
inal battery (see the label on the battery).
Related information
•
Starter battery - replacement (p. 392)
•
Starter battery - general (p. 390)
Fuses - general
All electrical functions and components are
protected by a number of fuses in order to
protect the car's electrical system from dam-
age by short circuiting or overloading.
If an electrical component or function does
not work, it may be because the component's
fuse was temporarily overloaded and failed. If
the same fuse fails repeatedly then there is a
fault in the circuit. Volvo recommends that
you visit an authorised Volvo workshop for
checking.
Changing
1. Look in the fuse diagram to locate the
fuse.
2. Pull out the fuse and check from the side
to see whether the curved wire has
blown.
3. If this is the case, replace it with a new
fuse of the same colour and amperage.
WARNING
Never use a foreign object or a fuse with
an amperage higher than that specified
when replacing a fuse. This could cause
significant damage to the electrical system
and possibly lead to fire.
Location of central electrical units
Central electrical unit locations in a left-hand
drive car. In a right-hand drive car the central
electrical units under the glovebox change
sides.
Engine compartment
Under the glovebox
Under the glovebox
Cargo area under the cargo floor
Engine compartment cold zone (only
Start/Stop)
Related information
•
Fuses - in engine compartment (p. 399)
•
Fuses - under glovebox (p. 403)
•
Fuses - in the control module under the
glovebox (p. 405)
