2017 VOLVO V90 service

MAINTENANCE AND SERVICE
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533
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 corro- sive acid.
Avoid sparks and nakedflames.
Risk of explosion.
Must be taken for recycling.
NOTE
An expended starter battery or support bat- tery must be recycled in an environmentallysafe manner since it contains lead.
Related information
•Starter battery (p. 530)
• Support battery (p. 533)
Support battery Cars with Start/Stop function, in addition to the starter battery, are equipped with a support bat-tery.
Cars with the Start/Stop function are equipped with two 12 V batteries - one extra powerfulstarter battery for starting and one support bat-tery that helps during the Start/Stop function'sstarting sequence.
The support battery is located in a box next to the strut tower.
The following table shows specifications for the support battery.
Voltage (V) 12 Cold start capacity A
- CCA B
(A) 170

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MAINTENANCE AND SERVICE
534
Size , L×W×H (mm) 150×90×130
Capacity (Ah) 10
AAccording to EN standard.
B Cold Cranking Amperes.
IMPORTANT
When replacing the starter battery or support battery, a battery of AGM 15
type must be fit-
ted.
NOTE
• The higher the current take-off in the car, the more the alternator must be workingand the batteries charging = Increasedfuel consumption.
• When the capacity of the starter batteryhas fallen below the lowest permissiblelevel then the Start/Stop function is dis-engaged.
Temporarily reduced Start/Stop function due to high current take-off means: •
The engine starts automatically 16
without the
driver depressing the clutch pedal (manualgearbox).
• The engine starts automatically without thedriver lifting his/her foot off the foot brakepedal (automatic gearbox).
The support battery normally requires no moreservice than the normal starter battery. A work-shop should be contacted in the event of ques-tions or problems - an authorised Volvo workshopis recommended.
IMPORTANT
If the following instruction is not observed then the Start/Stop function may temporarilycease to work after the connection of anexternal starter battery or battery charger:
• The negative battery terminal on the car's starter battery must
never be used for
connecting an external starter battery orbattery charger - only the car's negative
charging point may be used as the
grounding point.
NOTE
If the starter battery has been discharged so much that the car has no normal electricalfunctions and the engine is then jump-startedwith an external battery or a battery charger,the Start/Stop function will continue to beactivated. If the Start/Stop function thenauto-stops the engine shortly after, there is agreat risk that engine auto-start will fail dueto insufficient battery capacity, because thebattery has not had the opportunity torecharge. If the car has been jump-started, or if there is insufficient time to charge the battery with abattery charger, the recommendation is totemporarily deactivate the Start/Stop functionuntil the battery has been recharged by thecar. In an outside temperature of +15 °C, thebattery needs to be charged for at least1 hour by the car. In a lower outside tempera-ture, the charging time may increase to3-4 hours. The recommendation is to chargethe battery using an external battery charger.
Related information
• Starter battery (p. 530)
• Start/Stop (p. 396)
15
Absorbed Glass Mat.
16 Automatic starting can only take place if the gear lever is in neutral position.

MAINTENANCE AND SERVICE
535
•
Using jump starting with another battery (p. 388)
• Symbols on the batteries (p. 533)
Fuses All electrical functions and components are pro- tected by a number of fuses in order to protectthe car's electrical system from damage by shortcircuiting or overloading.
If an electrical component or function does not work, it may be because the component's fusewas temporarily overloaded and failed. If thesame fuse fails repeatedly then there is a fault inthe circuit. Volvo recommends contacting anauthorised Volvo workshop for checking.
Location of central electrical units
Central electrical unit locations in a left-hand drive car. In a right-hand drive car the centralelectrical units under the glovebox change sides.
Engine compartment
Under the glovebox
Cargo area
Related information
•Replacing a fuse (p. 536)

MAINTENANCE AND SERVICE
536
Replacing a fuse All electrical functions and components are pro- tected by a number of fuses in order to protectthe car's electrical system from damage by shortcircuiting or overloading.
Changing1. Look in the fuse diagram to locate the fuse.
2. Pull out the fuse and check from the side tosee 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 whenreplacing a fuse. This could cause significantdamage to the electrical system and possiblylead to fire.
Related information
• Fuses (p. 535)
• Fuses in engine compartment (p. 537)
• Fuses under glovebox (p. 542)
• Fuses in cargo area (p. 546)

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

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MAINTENANCE AND SERVICE
* Option/accessory.
538
Applies to the Bi-Fuel model variant *B
On the inside of the cover there are tweezers that facilitate the procedure for the removal and fittingof fuses. The fuse box also provides space for severalspare fuses.PositionsOn the inside of the cover is a label that showsthe location of the fuses.

MAINTENANCE AND SERVICE
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* Option/accessory.539
•
Fuses 18-30, 35-37, 46-54 and 55-70 are of the "Micro" type.
• Fuses 31-34, 38-45 and 71-78 are of the"MCase" type and should be replaced by a workshop 17
.
Function AA
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
Heating of lambda probe
*B
;
Control module for vehicle gas *B 15
*B
Function
AA
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
USB port in tunnel console, front
* 5
12 V socket in tunnel console, front
15
12 V socket in tunnel console, by legroom for second seat row15
12 V socket in cargo area
*15
- -
Function
AA
Left-hand headlamp, certain variants of LED C 15
Right-hand headlamp, certain variants of LED
C 15
- -
Heated windscreen
* left-hand
side Shunt
Heated windscreen
* left-hand
side 40
Headlamp washers
*25
Windscreen washers 25
- -
Horn 20
Siren
* 5
Control module for brake system (valves, parking brake) 40
Windscreen wipers 30
Rear window washer 25
17
An authorised Volvo workshop is recommended.

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MAINTENANCE AND SERVICE
* Option/accessory.
540
Function
AA
Heated windscreen
* right-hand
side 40
Parking heater
* 20
Control unit for brake system (ABS pump) 40
- -
Heated windscreen
* right-hand
side Shunt
Supplied when the ignition is switched on: Engine controlmodule; Transmission compo-nents; Electric steering servo;Central electronic module; Con-trol module for brake system 5
- -
Right-hand headlamp 7.5 Right-hand headlamp, certain variants of LED
C 15
- -
- -
Module for controlling battery engagement 5
Function
AA
Airbags 5
Left-hand headlamp 7.5 Left-hand headlamp, certain variants of LED C 15
Accelerator pedal sensor 5
Transmission control module 15
Engine Control Module (ECM) 5
- -
- -
- -
- -
Engine control module; Actuator; Throttle unit; EGR valve (diesel);Position sensor for turbo (die-sel); Valve for turbocharger (pet-rol) 20
Solenoids (petrol); Valve; Ther- mostat for engine cooling sys-tem (petrol); EGR cooling pump(diesel); Glow control module(diesel)10
Function
AA
Vacuum regulators; Valve; Valve for output pulse (diesel) 7.5
Control module for spoiler roller cover; Control module for radia-tor roller cover; Relay coils foroutput pulse (diesel) 5
- -
Lambda-sond, front; Lambda- sond, rear (petrol)
15
Solenoid for engine oil pump; Solenoid clutch A/C; Lambdasond, centre (petrol); Lambdasond, rear (diesel)15
- -
Engine Control Module (ECM) 20
Ignition coils (petrol); Spark plugs (petrol)
15
Control module for vehicle gas
*B
15*B
Fuel filter heater (diesel) 30
- -
- -
- -