2018 VOLVO XC90 engine

MAINTENANCE AND SERVICE
604
Replacing fuses All electrical functions and components are pro- tected by a number of fuses in order to protectthe vehicle's electrical system from damage byshort circuiting or overloading.
1. Refer to the fuse diagram to locate the fuse.
2. Pull out the fuse and examine it from theside to determine if the curved metal wire in the fuse is intact.
3. If the wire is broken, replace the fuse with a new fuse of the same color and amperage.
WARNING
Never use a foreign object or a fuse with a higher amperage than that specified toreplace a fuse. This could cause significantdamage to the electrical system and possiblylead to a fire.
WARNING
Contact an authorized Volvo workshop for assistance replacing fuses not listed in theOwner's Manual. If performed incorrectly, sig-nificant damage can be caused to the electri-cal system.
Related information
• Fuses and fuseboxes (p. 603)
• Fuses in the cargo compartment (p. 611) •
Fuses in the engine compartment (p. 605)
• Fuses under the glove compartment (p. 608)

MAINTENANCE AND SERVICE
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605
Fuses in the engine compartment
The fuses in the engine compartment help pro- tect electrical components such as engine andbrake functions.

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MAINTENANCE AND SERVICE
* Option/accessory.
606 Fuse pliers are provided on the inside of the fuse box cover to assist in removing and insertingfuses. There are also spaces for several extra fuses in the fusebox.
PositionsThere is a decal with a diagram of the locationsof the fuses on the inside of the cover.
• Fuses 1-13, 18-30, 35-37 and 46-54 are"Micro" fuses.
• Fuses 14-17, 31-34 and 38-45 are"MCase" fuses and should only be replaced by a workshop 21
.
FunctionAA
– –
– –
– –
Ignition coils (gasoline); spark plugs (gasoline) 15
Oil pump solenoid; A/C mag- netic coupling; heated oxygensensor, center (gasoline); heatedoxygen sensor, rear (diesel)15
FunctionAA
Vacuum regulators; valve; valve for power pulse (diesel)
7.5
Engine control module; actuator; throttle unit; EGR valve (diesel);turbo position sensor (diesel);turbocharger valve (gasoline) 20
Engine control module 5
– –
Solenoids (gasoline); valve; Engine cooling system thermo-stat (gasoline); EGR coolingpump (diesel); glow controlmodule (diesel)10
Spoiler shutter control module; Radiator shutter control module;Relay windings for power pulse(diesel)
5
Heated oxygen sensor, front; Heated oxygen sensor, rear(gasoline)
15
Engine control module 20
Starter motor 40
FunctionAA
Starter motor Shunt
Fuel filter heater (diesel) 30
– –
– –
– –
– –
– –
– –
– –
12 V outlet in tunnel console, front
15
12 V outlet in tunnel console between rear seats15
12 V outlet in trunk/cargo com- partment
* 15
– –
– –
– –
21
An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE
* Option/accessory.607
FunctionAA
– –
Heated windshield *, left side Shunt
Heated windshield
*, left side 40
Headlight washers
*25
Windshield washer 25
Transmission control module 15
Horn 20
Alarm siren
* 5
Brake system control module (valves, parking brake) 40
Wipers 30
Rear window washer 25
Heated windshield
*, right side 40
20
Brake system control module (ABS pump) 40
– –
Heated windshield
*, right side Shunt
FunctionAA
Fed when ignition is on: engine control module, transmissioncomponents, electrical powersteering, central electrical mod-ule, brake system control mod-ule 5
– –
Right-side headlight 7.5 Right-side headlight, some mod- els with LED
B 15
– –
– –
Battery connection control mod- ule 5
Airbags 5
Left-side headlight 7.5 Left-side headlight, some mod- els with LED
B 15
Accelerator pedal sensor 5
A
Ampere
B LED (Light Emitting Diode)
Related information
• Fuses and fuseboxes (p. 603)
• Replacing fuses (p. 604)

MAINTENANCE AND SERVICE
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* Option/accessory.609
Fuse pliers are provided on the inside of the fuse box cover to assist in removing and insertingfuses. There are also spaces for several extra fuses in the
distribution box in the engine compart-
ment .
Positions
•Fuses 1, 3-21, 23-36, 39-53 and 55-59 are "Micro" fuses.
• Fuses 2-22, 37-38 and 54 are "MCase"fuses and should only be replaced by a work- shop 22
.
FunctionAA
– –
Electrical outlet in tunnel console between rear seats * 30
– –
Movement sensor
* 5
Media player 5
Instrument panel 5
Center console buttons 5
Sun sensor 5
FunctionAA
– –
– –
Steering wheel module 5
Module for start knob and parking brake controls 5
Heated steering wheel
* module 15
– –
– –
– –
– –
Climate system control module 10
– –
Data link connector OBD-II 10
Center display 5
Climate system blower module (front) 40
USB HUB 5
FunctionAA
Instrument lighting; Interior lighting; Rearview mirror auto-dim function
*;
Rain and light sensors *; Rear tun-
nel console keypad, rear seat *;
Power front seats *; Rear door con-
trol panels; Climate system blower module left/right 7.5
Control module for driver support functions
5
Panoramic roof with sun curtain
*20
Head-up display
* 5
Passenger compartment lighting 5
– –
Ceiling console display (seat belt reminder/front passenger side air-bag indicator) 5
– –
Humidity sensor 5
Door module in right-side rear door 20
Fuses in the trunk/cargo compart- ment
10
22
An authorized Volvo workshop is recommended.

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MAINTENANCE AND SERVICE
612
The fuse box is located under the storage compartment on the right-hand side.
Fuse pliers are provided on the inside of the fuse box cover to assist in removing and insertingfuses.There are also spaces for several extra fuses in the
distribution box in the engine compart-
ment .

MAINTENANCE AND SERVICE
}}
* Option/accessory.613
Positions
•Fuses 13-17 and 21-36 are "Micro" fuses.
• Fuses 1-12, 18-20 and 37 are "MCase" fuses and should only be replaced by a work- shop 23
.
FunctionAA
Heated rear window 30
– –
Pneumatic suspension * compressor 40
Rear auxiliary electric heater (right- hand side)
* 30
– –
Rear auxiliary electric heater (left- hand side)
* 30
– –
Control module for reduction of nitrous oxides (diesel)
30
Power tailgate
* 25
Power front passenger seat
*20
Towbar
* control module 40
FunctionAA
Seat belt tensioner module (right side) 40
Internal relay windings 5
Control module for reduction of nitrous oxides (diesel)15
Foot movement detection module for opening the power tailgate
*5
USB hub/accessory port –
Module for electrically folding third- row seats
* 20
Towbar
* control module 25
Power driver seat
* 20
Seat belt tensioner module (left side) 40
Park Assist Camera
*5
– –
– –
– –
– –
FunctionAA
Control module for airbags and seat belt tensioners 5
– –
Heated rear seat (left side)
*15
– –
Blind Spot Information (BLIS)
*;
Exterior reverse signal control mod- ule 5
– –
Modules for seat belt tensioners 5
Emissions system actuator (gaso- line, certain engine variants)
5
– –
All Wheel Drive (AWD) control module
* 15
Heated rear seat (right side)
*15
– –
A
Ampere
23 An authorized Volvo workshop is recommended.

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MAINTENANCE AND SERVICE
622•
Wash using a sponge, car washing detergent and plenty of lukewarm water.
• Clean the wiper blades with lukewarm soapsolution or car washing detergent.
• Dry the vehicle using a clean, soft chamois ora squeegee. Try not to let drops of water dryin strong sunlight. This could cause waterdrying stains that may need to be polishedout.
• In areas with heavy industrial emissions,more frequent washing of the vehicle's exte-rior is recommended.
• Tar spots from asphalt may remain even afterwashing. Use a tar remover to remove thesespots after washing the vehicle.
WARNING
Always entrust engine washing to a workshop. If the engine is hot, there is a risk of fire.
CAUTION
Dirty headlights do not work as well. Clean them regularly, e.g. when refueling. Do not use corrosive cleaners. Use water and a non-abrasive sponge.
NOTE
Exterior lighting such as headlights and tail- lights may develop temporary condensationon the inside of the lens. This is normal. Allexterior lighting is designed to resist this.Condensation is normally vented out of thelamp housing once the light has been lit forsome period of time.
CAUTION
• Make sure that the panoramic roof and sun shade are closed before washing thevehicle.
• Never use abrasive polishing agents onthe panoramic roof.
• Never use wax on the rubber sealsaround the panoramic roof.
CAUTION
Remember to remove dirt from the drain holes in the doors and sills after washing thevehicle.
Related information
• Cleaning the exterior (p. 620)
• Polishing and waxing (p. 621)
• Automatic car washes (p. 623)
• High-pressure washing (p. 624) •
Cleaning the wiper blades (p. 624)
• Cleaning exterior plastic, rubber and trim components (p. 625)
• Cleaning rims (p. 626)
• Corrosion protection (p. 626)