Fuses
In order to prevent damage to the electrical system as a result of short circuits or overloading, all electrical functions and components are protected by a number of fuses .
The fuses are located in three different places in the car:
Fuses in the main fuse box (A) protect the entire electrical supply system.
Fuses in the relay/fuse box (B) protect the electrical functions and components in the engine compartment.
The fuse box in the passenger compartment (C) contains the fuses which protect the various functions in the interior of the car.
Fuse replacement
If an electrical component fails to function, it is likely that a fuse has blown due to an overloaded circuit. Pull out the fuse and look at it from the side to see if there is a break in the curved wire. If there is, install a new fuse of the same amperage and color.
A number of spare fuses are located in the fuse box in the passenger compartment. There is also a fuse removal tool to help with the removal and replacement of fuses.
pg. 6:14 Fuses |
Main fuse box (Box A)
Fuses in the main fuse box protect the entire electrical system. If one of the fuses blows, there is a serious electrical fault. Do not change any of these fuses. Contact your nearest Volvo workshop for a closer analysis.
When checking whether a fuse has blown, you should first try to locate the blown fuse in the fuse box in the passenger compartment or in the relay/fuse box in the engine compartment.
Location*
Amperage
1 Heated rear window, Central locking system, Power Supply Relay "B" Ignition switch
50
2 Audio, power seats, Hazard warning flashers, Compartment Lights, Power Antenna, Trailer Power,
50
3 Power Supply Relay "A"
50
4 Fuel System Relay, Ignition System Relay
50
5 ABS-unit
50
6 Air pump, Starter Solenoid, Horn
50
7 Electric Cooling Fan
50
8 Pos./parking Light Relay, Headlight Relay, Fog light relay
50
* Some of the equipment/systems listed may be available on certain models only and/or as optional items only.
pg. 6:15 Fuses |
* Some of the equipment/systems listed may be available on certain models only and/or as optional items only.
Relay/fuse box (Box B)
The fuses in the relay/fuse box generally protect the electrical components in the engine compartment.
The fuses are located under the cover in the relay/fuse box. Undo the four clamps and pull out the fuse you want to check. Look at the fuse from the side to see if there is a break in the curved wire. Should you need to replace a fuse, you will find spare fuses in the central fuse box in the passenger compartment. Replace the blown fuse with a new one of the same amperage and color. Never use a fuse with a higher amperage! There are a pair of pliers, to help when replacing fuses, in the central fuse box in the passenger compartment.
pg. 6:16 Fuses |
Fuse box in the passenger compartment (Box C).
These fuses generally protect the electrical components in the passenger compartment.
The fuses are located inside the cover on the left side of the dash
. A number of spare fuses can also be found here. Fuses are replaced in the same way as in the relay/fuse box in the engine compartment (see previous page).
Location **
Amperage
1 Heated rear window
25
2 Central locking
20
3 Brake light, Light switch
15
4 Ignition switch, SRS
10
5 Spare
6 Windshield wiper/washer, Headlight wiper, horn relay
25
7 Climate unit
20
8 Power seats, Power side door mirrors, Tailgate wiper/washer (wagons), Instrument lighting, Ambient temp. sensor
15
9 Audio system
15
10 Cigarette lighter
15
11 Interior lighting, Transmission mode selector
5
12 ABS
5
13 Clock, Interior/glove compartment lighting, Door open warning lights, Cargo space lighting, Vanity mirror
10
14 Alarm, Horn
10
15 Power antenna, Headlight flasher, Trailer
20
16 Accessories
20
17 Hazard warning flasher, Direction indicator, Alarm hazard indication
20
18 Audio/amplifier, CD changer
15
19 Backup lights, Turn indicators, Cruise control
15
20 Light switch, High/low beam relay
15
21 Seat belt reminder, Timer-electrically heated rear window
5
22 Heated driver's seat
15
23 Heated passenger's seat
15
24 Rear foglights
5
25 Power seats*
30
26 Power windows, Power sunroof*
30
* Automatic circuit breakers
** Some of the equipment/systems listed may be available on certain models only and/or as optional items only.
| Replacing wiper blades Lift the wiper arm off the windshield and hold blade at right angles to arm. Pinch the end of the plastic clip located at the back of the arm. Slide the wiper blade along the arm to release it from the hook. |
| Install new blade (installation is the reverse of removal) and make sure that it is properly attached to the wiper arm. For reasons of safety, you should change the windshield wiper blades as soon as they start to leave marks on the windshield or fail to wipe efficiently and cleanly. |
| To obtain maximum lifetime from a set of wiper blades, clean them with a stiff-bristle brush and warm, soapy water as part of a normal car wash. |
Replacing headlight wiper blades (certain models)
Pull the wiper blade in the direction indicated by the arrow in illustration to remove it. Press the new blade into place. Check that the new blade is properly attached to the wiper arm.
The diagnoses outlined below are intended to serve only as guides to locate and temporarily correct minor faults. Causes of unsatisfactory performance should be investigated and corrected by your Volvo dealer only. See section "Road Assistance".
Starter fails to operate (or operates very slowly) |
Weak battery or dead cell.
With the starting (ignition) switch in the "Driving" or "On" position, check to see if the warning lights on the dashboard come on and if they stay on when the starter is engaged. If the lights do not come on or if they go off when the starter is engaged, the battery is discharged, or see below.
Loose or corroded battery cable terminals.
Check battery terminals and clamps. Clean or replace if necessary. Check that the starter cable is secure at its terminals.
The ground strap, which connects the body to the rear of the engine, should also be checked for corrosion or looseness.
Open circuit between starting (ignition) switch and starting (ignition) switch terminal on starter.
The circuit is closed if a clicking sound is heard from the starter when it is engaged. If no clicking sound is heard, check that the blue wire at the starter is secure. If still no clicking sound is heard, the starting (ignition) switch or the wire is defective.
Starter motor defective.
If the above checks have been performed, and no fault is evident, the starter may be defective.
NOTE: In this case the headlight intensity will not decrease when the starter is engaged.
pg. 6:19 Service diagnosis (cont.) |
Starter motor operated but engine does not start |
Intake system leaking.
Check vacuum hose connections at manifold and idle air control valve.
No fuel reaching engine.
Check for fuel in the tank.
Check fuses.
No spark.
If there is no spark, check that the high tension lead from the coil to the distributor cap is connected and that the wires to the distributor and coil are connected.
If no fault is found following the above steps, contact your Volvo dealer.
Excessive fuel consumption |
Fuel lines leaking.
Check tightness.
Spark plugs worn.
Replace plugs.
pg. 6:20 Service diagnosis (cont.) |
Erratic idle (misfiring) |
Intake system leaking.
Check vacuum hose connections to manifold and idle air control valve.
Worn spark plugs.
Remove. Clean or replace spark plugs.
Engine stops running at irregular intervals |
Defective wires.
Check wire terminals at: fuel pump, fuses, coil, ignition switch and relays.
Intake system leaking.
Check vacuum hose connections at manifold and idle air control valve.
Fuel filter clogged.
Clean fuel tank filter and replace line fuel filter.
Misfiring at highway driving speed |
Spark plugs fouled.
Drive the vehicle in a lower gear and keep the engine rpm higher for a few miles in order to remove carbon deposit on the spark plugs. If this procedure is not effective, clean or replace the spark plugs.
Please be aware that misfiring spark plugs can cause damage to the three-way catalytic converter.
Emergency sun roof operation
No current to sun roof motor
The overload circuit breaker (no. 26 in passenger compartment fuse box) has been activated.
Wait approx. 20 seconds for the circuit breaker to cool down.
Shiftlock release
The gear selector is locked in the P position. To manually release the shift lock, turn the starting (ignition) key to position I and press firmly on the "SHIFTLOCK OVERRIDE" button located near the base of the gear selector (see illustration). While holding the override button down, move the gear selector from the (P)ark position.
