2018 VOLVO S90 service

MAINTENANCE AND SERVICE
579
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. 578)
• Fuses in the trunk (p. 586) •
Fuses in the engine compartment (p. 580)
• Fuses under the glove compartment (p. 583)

MAINTENANCE AND SERVICE
580
Fuses in the engine compartment
The fuses in the engine compartment help pro- tect electrical components such as engine andbrake functions.

MAINTENANCE AND SERVICE
}}
* Option/accessory.581
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
– –
– –
– –
– –
– –
– –
Front USB port in tunnel con- sole, front
* 5
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.

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MAINTENANCE AND SERVICE
* Option/accessory.
582
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
– –
Heated windshield
*, right side 40
– –
Brake system control module (ABS pump) 40
– –
FunctionAA
Heated windshield
*, right side Shunt
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
– –
– –
Battery connection control mod- ule
5
Airbags 5
Left-side headlight 7.5
Accelerator pedal sensor 5
A
Ampere
Related information
• Fuses and fuseboxes (p. 578)
• Replacing fuses (p. 579)

MAINTENANCE AND SERVICE
}}
583
Fuses under the glove compartment
Fuses under the glove compartment provide pro- tection for e.g. electrical outlets, displays anddoor modules.

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MAINTENANCE AND SERVICE
* Option/accessory.
584 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
Instrument panel 5
Center console buttons 5
FunctionAA
Sun sensor 5
– –
– –
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
FunctionAA
USB HUB 5
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
22
An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE
* Option/accessory.585
FunctionAA
Fuses in the trunk/cargo compart- ment 10
Control module for Internet-con- nected vehicle; Control module forVolvo On Call 5
Door module in left-side rear door 20
Audio control module (amplifier) (certain models only)
40
– –
Multi-band antenna module 5
Front seat massage function
*5
– –
Rear door sun curtain modules 15
Fuel pump control module 15
– –
– –
Driver's seat heating 15
Front passenger's seat heating 15
Coolant pump 10
FunctionAA
– –
Door module in left-side front door 20
Active chassis control module
*20
– –
Sensus control module 10
– –
– –
Door module in right-side front door 20
– –
TV
* (certain markets only) 5
Primary fuse for fuses 53 and 58 15
A
Ampere
Related information
• Fuses and fuseboxes (p. 578)
• Replacing fuses (p. 579)

MAINTENANCE AND SERVICE
* Option/accessory.
586
Fuses in the trunk The fuses in the trunk protect electrical compo- nents such as the power seats *, airbags and
seat belt tensioners.