2015 VOLVO XC90 relay

MAINTENANCE AND SERVICING
* Option/accessory, for more information, see Introduction.503
FunctionA
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Horn20
Alarm siren*5
Brake system control module (valves, parking brake)40
Windshield wipers30
Tailgate window washer25
Heated windshield *, passenger
side40
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Brake system control module (ABS pump)40
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Heated windshield *, passenger
sideShunt
Feed when ignition is switched on to: engine control module,transmission components, elec-trical power steering, centralelectrical module; Brake system control module5
FunctionA
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Passenger side headlight7.5
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Battery connections control module5
Air bags; Occupant Weight Sen- sor (OWS)5
Driver side headlight7.5
Accelerator pedal sensor5
Transmission control module15
Engine control module5
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Engine control module; Turbo- charger valve20
FunctionA
Solenoids; Valves; Engine cool- ing system thermostat10
Vacuum regulators; Coolant fan relay winding; Valve7.5
Spoiler shutter control module; Radiator shutter control module;Fuel leakage detection5
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Heated oxygen sensors (front and rear)15
Oil pump solenoid; A/C mag- netic coupling; heated oxygensensor (center)15
Crankcase ventilation heater7,5
Engine control module20
Ignition coil; Spark plugs15
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MAINTENANCE AND SERVICING
* Option/accessory, for more information, see Introduction.509
FunctionA
Internal relay windings5
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Foot movement detection module for opening the power tailgate*5
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Folding third row seats backrest module*20
Trailer hitch * control module25
Power driver seat * module20
Seat belt tensioner module (driver side)40
Parking camera *5
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Airbag and seat belt tensioner modules5
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FunctionA
Heated rear seat (driver side) *15
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BLIS*5
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Seat belt tensioner modules5
Emission system actuator5
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All Wheel Drive control module15
Heated rear seat (passenger side) *15
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Related information
•Replacing fuses (p. 500)
• Fuses (p. 500)

MAINTENANCE AND SERVICING
519
Hood completely closed
Related information
•Engine compartment overview (p. 519)
• Door and seat belt reminders (p. 61)
Engine compartment overview
The engine compartment overview shows some maintenance points.
The layout of the engine compartment may differ slightly from model to model
Coolant expansion tank
Brake fluid reservoir
Washer fluid reservoir
Relay/fuse box
Air cleaner
Engine oil filler cap
WARNING
• The cooling fan (located at the front of the engine compartment, behind the radi-ator) may start or continue to operate (forup to 6 minutes) after the engine hasbeen switched off.
• Engine cleaning should only be done by aworkshop. If engine cleaning agents areused when the engine has been running,there may a fire risk.
• Before performing any operations in theengine compartment, the ignition shouldalways be completely switched off (in mode
0) and there should be no remote
keys in the passenger compartment. Thegear selector should be in the P (park)
position. If the engine has been running, wait until it has cooled before touchingany components in the engine compart-ment.
• The distributor ignition system operatesat very high voltages. Special safety pre-cautions must be followed to preventinjury. Always turn the ignition off whenreplacing distributor ignition componentse.g. plugs, coil, etc.
• Do not touch any part of the distributorignition system while the engine is run-ning. This may result in unintended move-ments and body injury.