Volvo XC90 (2021 year). Manual in english — page 36
MAINTENANCE AND SERVICE
611
WARNING
If the starter battery is disconnected, the
function for automatic opening and closing
must be reset to function correctly. A reset
is required in order for the pinch protection
to work.
On certain models, the battery is secured
with a tensioning strap. Make sure that the
tensioning strap is always securely tight-
ened.
Specifications for starter battery
Battery type
H7 AGM
H8 AGM
Voltage (V)
12
12
Cold start capacity
A
- CCA
B
(A)
800
850
Dimensions, L×W×H
315×175×190 mm (12.4×6.9×7.5 inches)
353×175×190 mm (13.9×6.9×7.5 inches)
Capacity (Ah)
80
95
A
According to EN standard.
B
Cold Cranking Amperes.
Volvo recommends that batteries are replaced
by an authorized Volvo workshop.
If replacing the battery, make sure you
replace it with a battery of the same size,
cold start capacity and type as the original
battery (see the decal on the battery).
Related information
•
•
•
Jump starting using another battery
(p. 450)
•
Reset procedure for pinch protection
(p. 173)
•
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MAINTENANCE AND SERVICE
612
Support battery
Vehicles with the Start/Stop function are
equipped with two batteries – a more power-
ful 12 V start battery and a support battery
that provides stronger current during the
function's start sequence.
The 12 V support battery is located in a box next to
the spring strut in the engine compartment.
If the vehicle is instead equipped with a 48 V support
battery, it is located under the cargo compartment.
The box over the 48 V support battery may only be
removed by an authorized workshop.
WARNING
High voltage may be dangerous if handled
incorrectly. Do not touch anything on bat-
teries that is not clearly described in this
•
Never use a 48 V support battery to
jump start the vehicle.
•
External electrical equipment may not
under any circumstance be connected
to the 48 V battery.
•
Only a workshop may replace or per-
form service on the 48 V battery – an
authorized Volvo workshop is recom-
mended.
•
The higher the current consumption in
the vehicle, the more the alternator has
to work and the batteries have to be
charged = increased fuel consumption.
•
When the starter battery capacity has
dropped below the lowest permissible
level, the Start/Stop function is disen-
gaged.
When the Start/Stop function is temporarily
reduced due to high current consumption:
•
The engine will auto-start, even if the
driver does not lift their foot from the
brake pedal.
The support battery does not normally require
more service than the start battery. If you have
any questions or concerns, consult a work-
shop
‒
an authorized Volvo workshop is rec-
ommended.
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MAINTENANCE AND SERVICE
613
If the following is not observed, the Start/
Stop function may temporarily stop work-
ing after connection of an external starter
battery or battery charger:
•
The negative battery terminal of the
vehicle's starter battery must
never
be
used to connect an external starter
battery or battery charger – only the
vehicle's negative charging point
should be used as a grounding point.
If the starter battery has been discharged
to the extent that the vehicle does not have
normal electrical functions and the engine
must then be jump-started with an external
battery or a battery charger, the Start/Stop
function may remain activated. If the Start/
Stop function shortly thereafter auto-stops
the engine, there is a huge risk that auto-
start of the engine will fail due to insuffi-
cient battery capacity since the battery had
not had time to recharge.
If the vehicle has been jump-started or if
there has not been enough time for the
battery to be charged with a battery
charger, the Start/Stop function should be
temporarily deactivated until the battery
has been recharged by the vehicle. At an
ambient temperature of about +15°C
(about 60°F), the battery must be charged
by the vehicle for at least one hour. At
lower ambient temperatures, the charging
time can increase to 3-4 hours. It is advisa-
ble to charge the battery with an external
battery charger.
Specifications for support battery
Type
AGM
Voltage (V)
12
Cold start capacity
A
-
CCA
B
(A)
170
Dimensions, L×W×H
150×90×130 mm
(5.9×3.5×5.1
inches)
Capacity (Ah)
10
A
According to EN standard.
B
Cold Cranking Amperes.
If replacing the battery, make sure you
replace it with a battery of the same size,
cold start capacity and type as the original
battery (see the decal on the battery).
Related information
•
•
•
•
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MAINTENANCE AND SERVICE
614
Battery symbols
There are warning symbols and information
on the batteries.
Wear protective goggles.
for additional information.
Keep batteries away from
children.
Batteries contain corro-
sive acid.
Avoid smoking, open
flames, and/or sparks.
Risk of explosion.
Recycle properly.
Related information
•
•
•
Battery recycling
Start batteries and support batteries must be
recycled in an environmentally sound manner
at the end of their service life.
Consult a workshop if you are uncertain of
how to dispose of this type of waste
‒
an
authorized Volvo workshop is recommended.
Related information
•
•
•
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MAINTENANCE AND SERVICE
}}
615
Fuses and fuseboxes
All electrical functions and components are
protected by a number of fuses in order to
protect the vehicle's electrical system from
damage by short circuiting or overloading.
WARNING
Never use a foreign object or a fuse with a
higher amperage than that specified to
replace a fuse. This could cause significant
damage to the electrical system and possi-
bly lead to a fire.
If any electrical component or function is not
responding, the component may have blown a
fuse due to temporary overload. If the same
fuse blows repeatedly, there may be a prob-
lem with the component. Volvo recommends
contacting an authorized Volvo workshop to
have the component checked.
Location of fuseboxes
The illustration is generic - appearance may vary
according to vehicle model.
Engine compartment
Under the glove compartment
Trunk/cargo compartment
Related information
•
•
Fuses in the cargo compartment (p. 628)
•
Fuses in the engine compartment
(p. 617)
•
Fuses under the glove compartment
(p. 622)
Replacing fuses
All electrical functions and components are
protected by a number of fuses in order to
protect the vehicle's electrical system from
damage by short circuiting or overloading.
1. Refer to the fuse diagram to locate the
fuse.
2. Pull out the fuse and examine it from the
side 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 amper-
age.
WARNING
Never use a foreign object or a fuse with a
higher amperage than that specified to
replace a fuse. This could cause significant
damage to the electrical system and possi-
bly lead to a fire.
WARNING
Contact an authorized Volvo workshop for
assistance replacing fuses not listed in the
performed incorrectly, significant damage
can be caused to the electrical system.
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MAINTENANCE AND SERVICE
616
Related information
•
•
Fuses in the cargo compartment (p. 628)
•
Fuses in the engine compartment
(p. 617)
•
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MAINTENANCE AND SERVICE
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617
Fuses in the engine compartment
The fuses in the engine compartment help
protect electrical components such as engine
and brake functions.
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MAINTENANCE AND SERVICE
618
Fuse pliers are provided on the inside of the
fuse box cover to assist in removing and
inserting fuses.
There are also spaces for several extra fuses in
the fusebox.
Positions
There is a decal with a diagram of the loca-
tions of the fuses on the inside of the cover.
Function
Ampere
Type
–
–
Micro
–
–
Micro
Lambda sensors; Electric charge pressure module
15
Micro
Ignition coils (gasoline); spark plugs (gasoline)
Exhaust sensor; Diesel particulate sensor
15
Micro
Oil pump solenoid; A/C magnetic coupling; heated oxygen sensor, center (gasoline); heated oxygen sensor, rear (diesel);
heated oxygen sensor, front (gasoline/diesel)
15
Micro
Vacuum regulator; Valve; Output pulse valve (diesel); Oil level/temperature sensor (gasoline/diesel); Glow plug (GCU)
(diesel)
7.5
Micro
Engine control module; actuator; throttle unit; EGR valve (diesel); turbo position sensor (diesel); turbocharger valve
(gasoline)
20
Micro
Engine control module
5
Micro
–
–
Micro
Solenoids (gasoline); Fuel leakage control valve; Engine cooling system thermostat (gasoline); EGR vacuum valve (die-
sel); Glow control module (diesel); Supercharger clutch (gasoline); Crankshaft ventilation heater (diesel); Transmission
oil cooler valve (diesel)
10
Micro
Spoiler damper control module; Cooler damper control module; Relay coils for output pulse (diesel); Coolant valve
Fuel leakage detection (gasoline)
5
Micro
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MAINTENANCE AND SERVICE
}}
* Option/accessory.
619
Function
Ampere
Type
Coolant pump
15
Micro
Engine control module
20
Micro
Starter motor
40
MCase
A
Starter motor
Shunt
MCase
A
Fuel filter heater (diesel)
30
MCase
A
–
–
MCase
A
Calculation module
5
Micro
–
–
Micro
–
–
Micro
ECM camera
15
Micro
–
–
Micro
Front USB port in tunnel console, rear
*
7.5
Micro
12 V outlet in tunnel console, front
15
Micro
–
–
Micro
12 V outlet in trunk/cargo compartment
*
15
Micro
–
–
Micro
Driver-side headlight, LED
B
15
Micro
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MAINTENANCE AND SERVICE
* Option/accessory.
620
Function
Ampere
Type
Passenger-side headlight, LED
B
15
Micro
–
–
Micro
–
–
MCase
A
–
–
MCase
A
Headlight washers
*
25
MCase
A
Washer fluid pump
25
MCase
A
Transmission control module; Electric gear selector
15
Micro
Horn
20
Micro
Alarm siren
*
5
Micro
Brake system control module (valves, parking brake)
40
MCase
A
Brake control with 48 V battery
30
MCase
A
Wipers
30
MCase
A
Rear window washer
25
MCase
A
–
–
MCase
A
Parking heater
*
20
MCase
A
Brake system control module (ABS pump)
40
MCase
A
–
–
MCase
A
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MAINTENANCE AND SERVICE
621
Function
Ampere
Type
–
–
MCase
A
Fed when ignition is on: engine control module, transmission components, electrical power steering, central electrical
module, brake system control module
5
Micro
–
–
Micro
Passenger-side headlight, LED
B
15
Micro
–
–
Micro
Transmission control module
10
Micro
Battery connection control module
5
Micro
Airbags; Passenger weight sensor
5
Micro
Driver-side headlight, LED
B
15
Micro
Accelerator pedal sensor
5
Micro
A
This type of fuse should be replaced by a workshop. An authorized Volvo workshop is recommended.
B
LED (Light Emitting Diode)
Related information
•
•
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MAINTENANCE AND SERVICE
622
Fuses under the glove
compartment
Fuses under the glove compartment provide
protection for e.g. electrical outlets, displays
and door modules.
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MAINTENANCE AND SERVICE
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623
Fuse pliers are provided on the inside of the
fuse box cover to assist in removing and
inserting fuses.
There are also spaces for several extra fuses in
the
distribution box in the engine compart-
ment
.
Positions
There is a decal with a diagram of the loca-
tions of the fuses on the inside of the cover.
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MAINTENANCE AND SERVICE
* Option/accessory.
624
Function
Ampere
Type
Medium voltage module
A
10
Micro
–
–
MCase
B
–
–
Micro
Movement sensor
*
5
Micro
–
–
Micro
Instrument panel
5
Micro
Center console buttons
5
Micro
Sun sensor
5
Micro
–
–
Micro
–
–
Micro
Steering wheel module
5
Micro
Module for start knob and parking brake controls
5
Micro
Heated steering wheel
*
module
15
Micro
–
–
Micro
–
–
Micro
–
–
Micro
–
–
Micro
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MAINTENANCE AND SERVICE
}}
* Option/accessory.
625
Function
Ampere
Type
Climate system control module
10
Micro
–
–
Micro
Data link connector OBD-II
10
Micro
Center display
5
Micro
Climate system blower module (front)
40
MCase
B
USB HUB
5
Micro
Instrument lighting; Interior lighting; Rearview mirror auto-dim function
*
; Rain and light sensors
*
; Rear tunnel console
keypad, rear seat
*
; Power front seats
*
; Rear door control panels; Climate system blower module left/right
7.5
Micro
Control module for driver support functions
5
Micro
Panoramic roof with sun curtain
*
20
Micro
Head-up display
*
5
Micro
Passenger compartment lighting
5
Micro
Wireless charging pad
5
Micro
Ceiling console display (seat belt reminder/front passenger side airbag indicator)
5
Micro
–
–
Micro
–
–
Micro
–
–
Micro
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MAINTENANCE AND SERVICE
* Option/accessory.
626
Function
Ampere
Type
Fuses in the trunk/cargo compartment
10
Micro
Control module for Internet-connected vehicle; Control module for Volvo On Call
5
Micro
Door module in left-side rear door
20
Micro
Infotainment control module (amplifier)
40
MCase
B
Climate system blower module (rear)
*
40
MCase
B
Multi-band antenna module
5
Micro
Front seat massage function
*
5
Micro
–
–
Micro
Rear window wiper
15
Micro
Fuel pump control module
15
Micro
Relay coil for transmission oil pump
Converter medium voltage; Integrated starter motor
5
Micro
Opening trunk/tailgate with foot movement
*
5
Micro
Driver's seat heating
15
Micro
Front passenger's seat heating
15
Micro
Coolant pump
7.5
Micro
–
–
Micro
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