Volvo S90 Recharge Plug-in Hybrid (2021 year). Manual in english - page 36

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MAINTENANCE AND SERVICE

618

IMPORTANT

On certain models, the battery is attached
with a retaining strap. Make sure the
retaining strap is properly tightened.

Specifications for starter battery

Battery type

H8 AGM

Voltage (V)

12

Cold start capacity

A

 - CCA

B

 (A)

850

Size, L×B×H

353×175×190 mm (13.9×6.9×7.5 inches)

Capacity (Ah)

95

A

According to EN standard.

B

Cold Cranking Amperes.

Volvo recommends entrusting battery replace-
ment to an authorised Volvo workshop.

IMPORTANT

If the battery is replaced, make sure you
replace it with a battery with the same
size, cold starting capacity and type as the
original battery (see the decal on the bat-
tery).

Related information

•

Symbols on the batteries (p. 619)

•

Hybrid battery (p. 619)

•

Using jump starting with another battery
(p. 488)

•

Reset sequence for pinch protection
(p. 167)

•

Battery recycle (p. 620)

MAINTENANCE AND SERVICE

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619

Hybrid battery

The car is equipped with a hybrid battery for
electric motor operation - a maintenance-free
rechargeable Lithium-ion type battery.

NOTE

The car cannot be started if the hybrid bat-
tery is discharged.

If both the starter battery and the hybrid bat-
tery are discharged then both batteries must
be charged. In such a case, charging only the
hybrid battery is not possible. In order for the
hybrid battery to be charged, the starter bat-
tery must have a certain state of charge.

WARNING

The hybrid battery must only be replaced

by a workshop - an authorised Volvo work-

shop is recommended.

The service life and capacity of the
hybrid battery

The capacity of the hybrid battery diminishes
with age and use, which may result in
increased use of the internal combustion
engine and, as a consequence, reduced fuel
economy and reduced range during electric
operation.

Coolant

The hybrid battery's cooling system has a sep-
arate expansion tank.

IMPORTANT

The hybrid battery's coolant must only be
topped up by a workshop - an authorised
Volvo workshop is recommended.

Specifications for hybrid battery

Type:

 Lithium-ion

Total amount of energy:

 11.6 kWh.

Related information

•

Symbols on the batteries (p. 619)

•

Starter battery (p. 617)

•

Charging the hybrid battery (p. 425)

•

Battery recycle (p. 620)

Symbols on the batteries

There are information and warning symbols
on the batteries.

Use protective goggles.

Further information in the

owner's manual for the

car.

Store the battery out of

the reach of children.

The battery contains cor-

rosive acid.

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MAINTENANCE AND SERVICE

620

Avoid sparks and naked

flames.

Risk of explosion.

Must be taken for recy-

cling.

Related information

•

Starter battery (p. 617)

•

Hybrid battery (p. 619)

•

Battery recycle (p. 620)

Battery recycle

A used starter battery must be recycled in an
environmentally sound manner.

Consult a workshop in the event of uncertainty
about how this type of waste should be dis-
carded - an authorised Volvo workshop is rec-
ommended.

Related information

•

Starter battery (p. 617)

•

Hybrid battery (p. 619)

•

Symbols on the batteries (p. 619)

Fuses and central electrical units

All electrical functions and components are
protected by a number of fuses in order to
protect the car's electrical system from dam-
age by short circuiting or overloading.

WARNING

Never use a foreign object or a fuse with an

amperage higher than that specified when

replacing a fuse. This could cause signifi-

cant damage to the electrical system and

possibly lead to fire.

WARNING

Orange-coloured cables must only be han-

dled by qualified personnel.

WARNING

Several components in the car work with

high-voltage current that could be danger-

ous in the event of incorrect intervention.
Do not touch anything that is not clearly

described in the owner's manual for the

car.

If an electrical component or function does not
work, it may be because the component's fuse
was temporarily overloaded and failed. If the
same fuse fails repeatedly then there is a fault
in the circuit. Volvo recommends contacting
an authorised Volvo workshop for checking.

MAINTENANCE AND SERVICE

621

Location of central electrical units

The figure is schematic - appearance may vary

depending on car model.

Central electrical unit locations in a left-hand
drive car. In a right-hand drive car the central
electrical units under the glovebox change
sides.

Engine compartment

Under the glovebox

Cargo area

Related information

•

Replacing a fuse (p. 621)

•

Fuses in cargo area (p. 634)

•

Fuses in engine compartment (p. 622)

•

Fuses under glovebox (p. 629)

Replacing a fuse

All electrical functions and components are
protected by a number of fuses in order to
protect the car's electrical system from dam-
age by short circuiting or overloading.

1. Look in the fuse diagram to locate the

fuse.

2. Pull out the fuse and check from the side

to see whether the curved wire has blown.

3. If this is the case, replace it with a new

fuse of the same colour and amperage.

WARNING

Never use a foreign object or a fuse with an

amperage higher than that specified when

replacing a fuse. This could cause signifi-

cant damage to the electrical system and

possibly lead to fire.

WARNING

Contact an authorised Volvo workshop

about the fuses not mentioned in the

owner's manual. If replacing the fuse is not

performed correctly, it can cause serious

damage to the electrical systems.

Related information

•

Fuses and central electrical units (p. 620)

•

Fuses in cargo area (p. 634)

•

Fuses in engine compartment (p. 622)

•

Fuses under glovebox (p. 629)

MAINTENANCE AND SERVICE

622

Fuses in engine compartment

Fuses in the engine compartment protect
engine and brake functions, amongst other
things.

MAINTENANCE AND SERVICE

}}

623

On the inside of the cover there are tweezers
that facilitate the procedure for the removal
and fitting of fuses.

The fuse box also provides space for several
spare fuses.

Positions

On the inside of the cover is a label that shows
the location of the fuses.

Function

Ampere

Type

–

–

Micro

–

–

Micro

–

–

Micro

Control module for actuator for engagement/change of automatic gearbox gear positions

5

Micro

Control module for the high-voltage heater of the internal combustion engine's coolant

5

Micro

Control module for air conditioning; Shut-off valve for heat exchanger; Shut-off valve for coolant that passes through the
climate control system

5

Micro

Control module for hybrid battery; High voltage converter for combined high-voltage generator/starter motor with volt-
age converter 500 V-12 V

5

Micro

–

–

Micro

Converter for control of the supply to the rear axle's electric motor

10

Micro

Control module for hybrid battery; High voltage converter for combined high-voltage generator/starter motor with volt-
age converter 500 V-12 V

10

Micro

Charging unit

5

Micro

Shut-off valve for the hybrid battery's coolant; Coolant pump 1 for hybrid battery

15

Micro

Coolant pump for electric drive system

15

Micro

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MAINTENANCE AND SERVICE

* Option/accessory.

624

Function

Ampere

Type

Cooling fan for hybrid components

25

MCase

A

–

–

MCase

A

–

–

MCase

A

–

–

MCase

A

Calculation unit

5

Micro

–

–

Micro

–

–

Micro

–

–

Micro

–

–

Micro

USB port in tunnel console, front

*

7,5

Micro

12 V socket in tunnel console, front

15

Micro

–

–

Micro

12 V socket in cargo area

*

15

Micro

–

–

Micro

Left-hand headlamp, LED

B

15

Micro

Right-hand headlamp, LED

B

15

Micro

–

–

Micro

MAINTENANCE AND SERVICE

}}

* Option/accessory.

625

Function

Ampere

Type

Heated windscreen

*

 left-hand side

Shunt

MCase

A

Heated windscreen

*

 left-hand side

40

MCase

A

Headlamp washers

*

25

MCase

A

Windscreen washers

25

MCase

A

–

–

Micro

Horn

20

Micro

Siren

*

5

Micro

Control module for brake system (valves, parking brake)

30

MCase

A

Windscreen wipers

30

MCase

A

–

–

MCase

A

Heated windscreen

*

 right-hand side

40

MCase

A

Parking heater

*

20

MCase

A

–

–

MCase

A

–

–

MCase

A

Heated windscreen

*

 right-hand side

Shunt

MCase

A

Supplied when the ignition is switched on: Engine control module; Transmission components; Electric steering servo;
Central electronic module

5

Micro

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MAINTENANCE AND SERVICE

* Option/accessory.

626

Function

Ampere

Type

Exterior car noise (certain markets)

5

Micro

Right-hand headlamp, LED

B

15

Micro

Alcohol lock

*

5

Micro

–

–

Micro

–

–

Micro

Airbags; Passenger weight sensor

5

Micro

Left-hand headlamp, LED

B

15

Micro

Accelerator pedal sensor

5

Micro

Transmission control module; Control module for gear selector

15

Micro

Engine Control Module (ECM)

5

Micro

–

–

Micro

–

–

Micro

–

–

Micro

–

–

Micro

Engine control module; Actuator; Throttle unit; Valve for turbocharger

20

Micro

Solenoid valves, Valve for fuel leakage monitoring; Overpressure coupling

10

Micro

Vacuum regulators; Valve for electric bypass: Valve for ventilation

7,5

Micro

MAINTENANCE AND SERVICE

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627

Function

Ampere

Type

Control unit, spoiler damper; Control unit, radiator damper

5

Micro

–

–

Micro

Lambda probe, front and rear

15

Micro

Solenoid for engine oil pump; Solenoid clutch A/C; Lambda probe, front, centre and rear

15

Micro

–

–

Micro

Engine Control Module (ECM)

20

Micro

Ignition coils; Spark plugs

15

Micro

–

–

MCase

A

–

–

MCase

A

Control module for transmission fluid pump

30

MCase

A

–

–

MCase

A

–

–

MCase

A

–

–

MCase

A

–

–

MCase

A

–

–

MCase

A

A

This type of fuse should be replaced by a workshop. An authorised Volvo workshop is recommended.

B

LED (Light Emitting Diode)

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MAINTENANCE AND SERVICE

628

Related information

•

Fuses and central electrical units (p. 620)

•

Replacing a fuse (p. 621)

MAINTENANCE AND SERVICE

}}

629

Fuses under glovebox

Fuses under the glovebox protect, amongst
other things, electrical sockets, displays and
door modules.

||

MAINTENANCE AND SERVICE

* Option/accessory.

630

On the inside of the cover there are tweezers
that facilitate the procedure for the removal
and fitting of fuses.

The 

fuse box in the engine compartment

also provides space for several spare fuses.

Positions

On the inside of the cover is a label that shows
the location of the fuses.

Function

Ampere

Type

Intermediate voltage module

A

10

Micro

–

–

MCase

B

–

–

Micro

Movement detector

*

5

Micro

–

–

Micro

Driver display

5

Micro

Keypad in centre console

5

Micro

Sun sensor

5

Micro

–

–

Micro

–

–

Micro

Steering wheel module

5

Micro

Module for start knob and for parking brake control

5

Micro

Steering wheel module for heated steering wheel

*

15

Micro

–

–

Micro

MAINTENANCE AND SERVICE

}}

* Option/accessory.

631

Function

Ampere

Type

–

–

Micro

–

–

Micro

Rear lamp housing control unit

15

Micro

Control module for climate control system

10

Micro

Steering lock

7,5

Micro

Diagnostic socket OBDII

10

Micro

Centre display

5

Micro

Fan module for climate control system, front

40

MCase

B

USB HUB

5

Micro

Controls lighting; Interior lighting; Dimming of interior rearview mirror

*

; Rain and light sensor

*

; Keypad in tunnel con-

sole, by legroom for rear seat

*

; Power front seats

*

; Control panels in rear doors; Fan module for climate control left/right

7,5

Micro

Control module for driver support functions

5

Micro

Sunroof

*

20

Micro

Head-up display

*

5

Micro

Passenger compartment lighting

5

Micro

Wireless charging plate

5

Micro

Display in roof console (Seatbelt reminder/Indicator for airbag on the front passenger seat)

5

Micro

||

MAINTENANCE AND SERVICE

* Option/accessory.

632

Function

Ampere

Type

–

–

Micro

–

–

Micro

–

–

Micro

–

–

Micro

Control module for online car; Control module for Volvo On Call

5

Micro

–

–

Micro

Audio control device (amplifier)

40

MCase

B

–

–

MCase

B

Module for multi-band antenna

5

Micro

Modules for seat comfort (massage) front

*

5

Micro

Alcohol lock

*

5

Micro

–

–

Micro

Control module for fuel pump

15

Micro

Relay coil for transmission oil pump

Converter medium voltage; Integrated starter motor

5

Micro

Opening the boot lid/tailgate with foot motion

*

5

Micro

Seat heating, driver's side front

15

Micro

MAINTENANCE AND SERVICE

* Option/accessory.

633

Function

Ampere

Type

Seat heating, passenger side front

15

Micro

Coolant pump

7,5

Micro

–

–

Micro

Power driver's seat

*

20

Micro

Control module for suspension (active chassis)

*

20

Micro

–

–

Micro

Sensus control module

10

Micro

–

–

MCase

B

–

–

Micro

Electrically operated front passenger seat

*

20

Micro

–

–

Micro

TV

*

 (certain markets)

5

Micro

Primary fuse for fuses 52, 53, 57 and 58

15

Micro

A

Only applies to cars with 48 V support battery.

B

This type of fuse should be replaced by a workshop. An authorised Volvo workshop is recommended.

Related information

•

Fuses and central electrical units (p. 620)

•

Replacing a fuse (p. 621)