2019 VOLVO S60 TWIN ENGINE wiring

HYBRID INFORMATION
374
General information about TwinEngine
Twin Engine vehicles are driven just like anyother vehicle, but certain functions differ from avehicle powered exclusively by gasoline. Theelectric motor powers the vehicle primarily at lowspeeds; the gasoline engine is used at higherspeeds or during more active driving.
The instrument panel displays Twin Engine-spe-cific information - charging information, selecteddrive mode, distance to discharged battery andhybrid battery charge level.
Different drive modes can be selected while driv-ing, e.g. electric power only or, if more power isneeded, a combination of electric and gasolinepower. The vehicle calculates the optimal combi-nation of driveability, driving experience, environ-mental impact and fuel economy for the selecteddrive mode.
In order to function optimally, the hybrid battery(and its electrical drive systems) and the gasolineengine (and its drive systems) must be at thecorrect operating temperature. Battery capacitycan be considerably reduced if the battery is toocold or too hot. Preconditioning prepares thevehicle's drive systems and passenger compart-ment before driving to help reduce both wear andenergy consumption. It also helps increase thehybrid battery's range.
The hybrid battery which powers the electricmotor is recharged using the charging cable. It
can also be recharged during light braking andthrough engine braking in gear position B. Thecombustion engine can also help recharge thehybrid battery.

Important
No electrical current
Keep in mind that if there is no electrical currentto the vehicle, i.e. the ignition is switched off orthe start battery is discharged, certain functionssuch as brakes, power steering, etc. will not work.

WARNING
If the vehicle does not have electrical currentand both the electric motor and the gasolineengine are switched off, the brakes cannot beused to stop the vehicle.

Towing not permitted
Never tow a Twin Engine vehicle behind anothervehicle, as this could damage the electric motor.

Exterior engine noise
WARNING
Please be aware that there is no sound fromthe engine when the vehicle is being poweredby the electric motor and it may be difficult todetect by children, pedestrians, cyclists andanimals. This is especially true at low speeds.
High-voltage electrical current
WARNING
A number of electrical components in TwinEngine Plug-in Hybrid vehicles use high-volt-age current and can be extremely dangerousif handled incorrectly. These components andany orange wiring in the vehicle may only behandled by trained and qualified Volvo servicetechnicians.
Do not touch anything that is not clearly descri-bed in this Owner's Manual.

Related information
Charging the hybrid battery (p. 375)
Hybrid gauge (p. 85)
Drive modes (p. 412)
Starting and stopping preconditioning(p. 218)
Hybrid battery (p. 578)
Factors affecting electric motor range(p. 421)

MAINTENANCE AND SERVICE
568
Engine compartment overview
This overview shows some service-related com-ponents.
Some of the components included in the vehi-cle's electric drive system are located in theengine compartment. Exercise caution whenaccessing the engine compartment and onlytouch what is required for normal maintenance.

WARNING
Orange wiring may only be handled by quali-fied personnel.

WARNING
A number of electrical components in TwinEngine Plug-in Hybrid vehicles use high-volt-age current and can be extremely dangerousif handled incorrectly.
Do not touch anything that is not clearlydescribed in this Owner's Manual.
Be careful when checking/filling fluids inthe engine compartment.
The layout of the engine compartment may vary depend-ing on model and engine variant.
Coolant expansion tank
Brake fluid reservoir (located on the driver'sside)
Washer fluid filler pipe12
Fusebox
Air filter
Engine oil filler pipe
WARNING
Bear in mind that the cooling fan (located atthe front of the engine compartment behindthe radiator) may start or continue runningautomatically up to about 6 minutes after theengine is turned off.
Always entrust engine washing to a workshop– an authorized Volvo workshop is recom-mended. If the engine is hot, there is a risk offire.

WARNING
The ignition system works with extremely highand dangerous voltages. The vehicle electricalsystem should always be in ignition mode 0when work in being performed in the enginecompartment.
Do not touch any spark plugs or ignition coilswhen the vehicle electrical system is in igni-tion mode II or when the engine is warm.

Related information
Opening and closing the hood (p. 566)
Filling washer fluid (p. 609)
Refilling coolant (p. 571)
Fuses in the engine compartment (p. 582)
Checking and filling engine oil (p. 570)
Ignition modes (p. 395)
12Fill the washer fluid at regular intervals, e.g. when refueling.

MAINTENANCE AND SERVICE
580
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 ahigher amperage than that specified toreplace a fuse. This could cause significantdamage to the electrical system and possiblylead to a fire.

WARNING
Orange wiring may only be handled by quali-fied personnel.

WARNING
A number of electrical components in TwinEngine Plug-in Hybrid vehicles use high-volt-age current and can be extremely dangerousif handled incorrectly.
Do not touch anything that is not clearlydescribed in the vehicle's Owner's Manual.
If any electrical component or function is notresponding, 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 an
authorized 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. 580)
Fuses in the trunk (p. 589)
Fuses in the engine compartment (p. 582)
Fuses under the glove compartment(p. 586)
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 inthe fuse is intact.
3. If the wire is broken, replace the fuse with anew fuse of the same color and amperage.
WARNING
Never use a foreign object or a fuse with ahigher 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 forassistance 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. 580)
Fuses in the trunk (p. 589)