2017 VOLVO XC90 TWIN ENGINE HYBRID light

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MAINTENANCE AND SERVICING
* Option/accessory, for more information, see Introduction.520
replaced by a trained and qualified Volvoservice technician.
Function[A]
Converter for controlling feed tothe rear axle electric motor5
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Control module for actuator forengaging/changing gears5
High Voltage Coolant Heatercontrol module5
Control module for: A/C, chargemodule, heat exchanger cut-offvalve, cut-off valve for coolantthrough the climate system
5
Hybrid battery control module;high-voltage converter for com-bined high-voltage generator/starter motor with 500 V–12 Vvoltage converter
5
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Converter for controlling feed tothe rear axle electric motor10
Function[A]
Hybrid battery control modulefor high-voltage converter forcombined high-voltage genera-tor/starter motor with 500 V–12V voltage converter
10
Charging module5
Cut-off valve for hybrid batterycoolant; coolant pump 1 forhybrid battery
10
Coolant pump for electric drivesystem10
Hybrid component cooling fan25
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Function[A]
Front USB socket*5
12-volt socket in the front tun-nel console15
12-volt socket on the rear side
of the tunnel consoleA
12-volt socket in the tunnel con-
sole between the rear seats B
15
12-volt socket in the cargo com-partment
USB sockets for iPad holdersB
15
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Heated windshield* driver sideShunt
Heated windshield* driver side40
Headlight washers*25
Windshield washer25
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MAINTENANCE AND SERVICING
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* Option/accessory, for more information, see Introduction.521
Function[A]
Horn20
Alarm siren*5
Brake system control module(valves, parking brake)40
Windshield wipers30
Tailgate window washer25
Heated windshield*, passengerside40
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Brake system control module(ABS pump)40
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Heated windshield*, passengersideShunt
Feed when ignition is switchedon to: engine control module,transmission components, elec-trical power steering, centralelectrical module
5
Exterior vehicle sound (certainmarkets)5
Passenger side headlight7,5
Function[A]
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Air bags; Occupant Weight Sen-sor (OWS)5
Driver side headlight7.5
Accelerator pedal sensor5
Transmission control module;Gear selector control module15
Engine control module5
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Engine control module; Actuator;Turbo-charger valve20
Solenoids; Valves; Engine cool-ing system thermostat10
Vacuum regulators; Valve7.5
Function[A]
Spoiler shutter control module;Radiator shutter control module;Fuel leakage detection
5
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Heated oxygen sensors (frontand rear)15
Oil pump solenoid; A/C mag-netic coupling; heated oxygensensor (center)
15
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Engine control module20
Ignition coils; Spark plugs15
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Transmission oil pump controlmodule30
Vacuum pump control module40
Transmission actuator25
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MAINTENANCE AND SERVICING
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* Option/accessory, for more information, see Introduction.525

Positions
•Fuses 1, 3–21, 23–36, 39–53 and 55–59are called "Micro".
•Fuses 2, 22, 37–38 and 54 are called"MCase" and should only be replaced by atrained and qualified Volvo service technician.
FunctionA
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120-volt socket between the rearseats30
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Alarm system movement sensorA5
Media player5
Instrument panel5
Center console buttons5
Sun sensor5
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Steering wheel module5
Module for start knob and parkingbrake5
FunctionA
Heated steering wheel* module15
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Climate system control module10
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On-board diagnostics (OBDII)10
Center display5
Climate system blower module(front)40
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FunctionA
Instrument lighting; Courtesy light-ing; Rearview mirror auto-dim func-tion; Rain and light sensor; Reartunnel console keypad*; Powerfront seats*
Instrument lighting; Courtesy light-ing; Rearview mirror auto-dim func-tion; Rain and light sensor; Rear
tunnel console keypad*B; Power
front seats*; Power rear seatsC;Display for rear seat conveniencefunctions*; Rear seat massagefunction*
7.5
Control module for driver supportfunctions5
Panorama roof and sun shade*20
Head-up display*5
Courtesy lighting5
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Ceiling console display (seat beltreminder, front passenger side air-bag indicator)
5
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Humidity sensor5

MAINTENANCE AND SERVICING
530
Replacing bulbs
The halogen headlight bulbs3 can be replacedby the owner.
Before the halogen headlight bulbs can bereplaced, that plastic covering over the headlighthousing has to be removed.

NOTE
Halogen headlights are not available on allmodels or in all markets.
Consult your Volvo retailer if you are uncertainabout the type of headlights in your vehicle.
To do so:
Lift the rubber strip by pressing in toward theengine compartment.
Release the pins in the plastic covering'sfour clips by pressing them down with ascrewdriver or similar object and remove thecovering.
The turn signal, high/low beam, Daytime RunningLight and parking light bulbs will be accessiblewhen the plastic covering has been removed.
Put the covering back in place in the reverseorder.
NOTE
The pins in the clips have to be pressed backcompletely before the clips are placed in theplastic covering.
When the covering is put back in place, thepins must be pressed so that their upper sur-face is flush with the surface of the clip.
3Halogen headlights are not available on all models.

MAINTENANCE AND SERVICING
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531

NOTE
•For information regarding any bulbs notmentioned in this section, please contactyour Volvo retailer or a trained andauthorized Volvo service technician.
•Always switch off the ignition before star-ting to replace a bulb.
•If an error message remains in the dis-play after a faulty bulb has been replaced,contact an authorized Volvo workshop.
•Condensation may form temporarily onthe inside of the lenses of exterior lightssuch as headlights, fog lights, or taillights.This is normal and the lights aredesigned to withstand moisture. Normally,condensation will dissipate after thelights have been on for a short time.
•The optional Active Bending Light bulbscontain trace amounts of mercury. Thesebulbs should always be disposed of by atrained and qualified Volvo service techni-cian.
CAUTION
Never touch the glass of bulbs with your fin-gers. Grease and oils from your fingers vapor-ize in the heat and will leave a deposit on thereflector, which will damage it.

WARNING
•The ignition should be switched off com-pletely (be in ignition mode 0) whenreplacing bulbs.
•If the engine has been running just priorto replacing bulbs in the headlight hous-ing, please keep in mind that componentsin the engine compartment will be hot.
Front bulbs (vehicles with halogen
headlights)
Low beam
High beam
Parking light/Daytime Running Light
Turn signal
(Not in use)

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MAINTENANCE AND SERVICING
532

Taillight bulbs
Brake light (LED)
Side marker light (LED)
Backup light4
Taillight (LED)
Turn signal (LED)
Fog light (LED)
High-mounted brake light (LED)

Related information
•Bulb specifications (p. 536)
•Removing the rectangular headlight cover(p. 532)
•Replacing parking light bulbs (p. 534)
•Replacing front turn signal bulbs (p. 535)
•Replacing High Beam headlight bulbs(p. 534)
•Replacing low beam headlight bulbs(p. 533)
Removing the rectangular headlightcover
Most of the bulbs in the headlight housing canbe accessed when the rectangular cover hasbeen removed.
Before the rectangular cover can be removed, theplastic covering must be removed, see the article"Replacing bulbs" for information.
1. Loosen the cover's four screws with a T20Torx screwdriver (1) but do not remove themcompletely (turning them 3–4 turns isenough).
2.Push the cover to the side.
3. Remove the cover.
Put the cover back in place in the reverse order.
4Must be replaced by a trained and qualified Volvo service technician.

MAINTENANCE AND SERVICING
533

Related information
•Replacing bulbs (p. 530)Replacing low beam headlight bulbs
On models with halogen headlights, the lowbeam headlight bulb can be replaced by theowner.
Before the bulb can be replaced, the plastic cov-ering over the headlight housing has to beremoved, see the article "Replacing bulbs."

CAUTION
Never touch the glass of bulbs with your fin-gers. Grease and oils from your fingers vapor-ize in the heat and will leave a deposit on thereflector, which will damage it.
Driver's side bulb housing shown
1. Remove the low beam round rubber coverfrom the headlight housing.
2.Remove the connector from the bulb.
3. Remove the bulb by pressing it slightlyupward and then pulling it out.
4. Insert the bulb in the socket. The bulb's guid-ing pin should point straight up.
5. Press the connector into place.
6. Put the rubber cover back into place.
Related information
•Replacing bulbs (p. 530)
•Bulb specifications (p. 536)

MAINTENANCE AND SERVICING
534
Replacing High Beam headlightbulbs
On models with halogen headlights, the HighBeam headlight bulb can be replaced by theowner.
Before the bulb can be accessed, the headlighthousing's rectangular cover must be removed,see the article "Removing the rectangular head-light cover."

CAUTION
Never touch the glass of bulbs with your fin-gers. Grease and oils from your fingers vapor-ize in the heat and will leave a deposit on thereflector, which will damage it.
Driver's side bulb housing shown
1. Remove the bulb by turning the bulb holderupward and then pulling it straight out.
2.Carefully pry the plastic sleeve by the con-nector's locking lug to release it.
3. Remove the connector from the bulb.
4. Insert a new bulb.
5. Insert the bulb in the socket and turn itdownward.

Related information
•Removing the rectangular headlight cover(p. 532)
•Bulb specifications (p. 536)
•Replacing bulbs (p. 530)
Replacing parking light bulbs
On models with halogen headlights, the frontparking light bulb can be replaced by the owner.
Before the bulb can be accessed, the headlighthousing's rectangular cover must be removed,see the article "Removing the rectangular head-light cover."
Remove the high beam bulb first by turning thebulb holder upward and then pulling it straightout. This makes it easier to access the parkinglight bulb.
Driver's side bulb housing shown
1. Pull the bulb holder straight out.
2.Remove the bulb by pulling it straight out.
3. Insert a new bulb.
4. Insert the bulb holder in the socket andpress it into place.