2018 VOLVO S90 trunk

MAINTENANCE AND SERVICE
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569
Related information
•Location of exterior lights (p. 565)
• Removing the plastic cover to replace bulbs (p. 564)
• Bulb specifications (p. 572)
Replacing the rear fog light bulb The rear fog light bulb is located behind a panel on the inside of the trunk lid on the driver's side.
NOTE
Replacement of the rear fog light bulb should only be performed by a workshop – anauthorized Volvo workshop is recommended.
To replace the rear fog light bulb:
Rubber cover the trunk lid lock.
1. Remove the rubber cover over the trunk lid
lock by moving it from side to side and pull- ing it straight off. It can be put back intoposition by pressing it into place.
Buttons in the trunk lid.
2. Remove the buttons in the trunk lid by insert-ing a flat object (e.g. a kitchen knife or screwdriver) behind the short sides of thebutton console and prying it out. The electri-cal connector for the buttons does not needto be disconnected.

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MAINTENANCE AND SERVICE
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Trunk lid closing handle.
The closing handle on the inside of the trunk lid must be removed on the side of the vehi-cle in which the fog light is mounted.
3. Insert a flat object (kitchen knife, screwdriver, etc.) into the sides of the handle console torelease the two catches while prying out thehandle. To put the handle back into position,press hard until the catches click back intothe locked position.
CAUTION
Both lock lugs of the closing handle must be
pressed in at the same time before the han-
dle can be folded out and removed.
Attaching clips on the panel.
4. Remove the three outermost clips on the panel on the inside of the trunk lid on the side in which the fog light is mounted.
The rectangular section of the clip points toward the front and rear of the vehicle.
5. To remove a clip: Insert a flat object (e.g.kitchen knifes or screwdrivers) into both short sides of the clip to release
both
catches at the same time and then pry and
pull out the clip.
The hinge's plastic cover is held into place by a plastic clip and three latches.
6. To remove the hinge's plastic cover on the side in which the fog light is mounted: Press down the pin in the center of the plastic clipusing a screwdriver or similar. Pry/pull outthe plastic clip.
7. Release the plastic cover's three latches using e.g. a small screwdriver and remove theplastic cover.
8. Carefully pry and pull down the loosened section of panel to access the bulb.

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CAUTION
Only a modern battery charger with controlled charge voltage should be used to charge thestarter battery and support battery. The rapidcharging function should not be used as thiscould damage the battery.
CAUTION
Failure to observe the following could cause the infotainment energy save mode to tempo-rarily stop working and/or a message in thedriver's display regarding the state of chargeof the starter battery may be temporarilyincorrect after an external starter battery orbattery charger has been connected:
• The negative battery terminal of the vehi- cle's starter battery must
never be used
to connect an external starter battery orbattery charger – only the vehicle's neg-
ative charging point should be used as
a grounding point.
NOTE
If the starter battery becomes discharged too many times, it will shorten its service life. The service life of the starter battery is affec- ted by several factors, such as driving condi-tions and climate. The starting capacity of thebattery reduces gradually over time. The bat-tery must therefore be recharged if the vehi-cle is not used or a long period of time or if itis only driven short distances. Severe cold fur-ther limits the starting capacity. To keep the starter battery in a good condi- tion, the vehicle should be driven at least15 minutes per week or the battery should beconnected to a battery charger with automatictrickle charging. A starter battery that is always kept fully charged has the maximum service life.
Location
The start battery is located in the trunk.
WARNING
If the starter battery is disconnected, the func- tion for automatic opening and closing mustbe reset to function correctly. A reset isrequired in order for the pinch protection towork.
CAUTION
On certain models, the battery is secured with a tensioning strap. Make sure that the ten-sioning strap is always securely tightened.

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MAINTENANCE AND SERVICE
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Avoid smoking, open
flames, and/or sparks.
Risk of explosion.
Recycle properly.
NOTE
A used start battery or backup battery con- tains lead and must be recycled in an environ-mentally responsible manner.
Related information
• Start battery (p. 573)
• Support battery (p. 576)
Fuses and fuseboxes
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.
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.
If any electrical component or function is not responding, the component may have blown afuse due to temporary overload. If the same fuseblows repeatedly, there may be a problem withthe component. Volvo recommends contacting anauthorized Volvo workshop to have the compo-nent checked.
Location of fuseboxes
The illustration is generic - appearance may vary accord- ing to vehicle model.
Engine compartment
Under the glove compartment
Trunk/cargo compartment
Related information
• Replacing fuses (p. 579)
• Fuses in the trunk (p. 586)
• Fuses in the engine compartment (p. 580)
• Fuses under the glove compartment (p. 583)

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
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* 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.

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.