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Vehicle care223Electrical system
High voltage devices and wiring9 Warning
Exposure to high voltage may
cause shock, burns, and even
death. The high voltage
components in the vehicle should
only be serviced by specially
trained technicians.
High voltage components are
identified by labels. Do not
remove, open, take apart, or
modify these components. High
voltage cable or wiring has orange covering. Do not probe, tamper
with, cut, or modify high voltage
cable or wiring.
Electrical system overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
If the current electrical load is too
heavy, the circuit breaker will open
and close, protecting the circuit until
the current load returns to normal or the problem is fixed. This greatly
reduces the chance of circuit
overload and fire caused by electrical
problems.
Fuses and circuit breakers protect the
following parts in the vehicle:
● Headlight wiring
● Windscreen wiper motor
● Power windows and other power accessories
Headlight wiring An electrical overload may cause the
lights to go on and off or in some
cases to remain off. In this case, have
the headlight wiring checked
immediately by a workshop.
Windscreen wipers
If the wiper motor overheats due to
blockage from heavy snow or ice, the windscreen wipers will stop until themotor has cooled down and the wiper
control has been turned off. Afterremoval of the blockage, the wiper
motor will restart when moving the
wiper control to the desired operating
position.
Although the circuit is protected from
electrical overload, mechanical
overload due to heavy snow or ice
may cause wiper linkage damage.
Always clear ice and heavy snow
from the windscreen before using the windscreen wipers. If the overload is
caused by an electrical problem and
not snow or ice, it must be serviced.
Fuses
Data on the replacement fuse must match the data on the defective fuse.
There are two fuse boxes in the
vehicle:
● at the front left side of the engine
compartment
● at the left side of the instrument panel
Before replacing a fuse, turn off the
respective switch and the vehicle.
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224Vehicle careA blown fuse can be recognised by itsmelted wire. Do not replace the fuse
until the cause of the fault has been
remedied.Caution
Do not replace the fuse until the
cause of the fault has been
remedied.
Some functions are protected by
several fuses.
Fuses may also be inserted without
existence of a function.
Fuse extractor
A fuse extractor is located in the fuse
box in the engine compartment.
Place the fuse extractor on the
various types of fuse from the top or
side, and withdraw fuse.
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Vehicle care225Engine compartment fusebox
The fuse box is located at the left front
side of the engine compartment.
To open the fuse block cover, press
the clip and remove the cover.
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Vehicle care227NumberUsage1–2Power window rear3–4Rechargeable energy
storage system 15–6–7Left high beam headlight8Right high beam headlight9Left low beam headlight10Right low beam headlight11Horn12–13Front wiper motor driver14Tailgate15Front wiper motor co-driver16Electronic brake control
module supply electronicsNumberUsage17Rear wiper18Tailgate19Seat module front20Washer21–22Linear power module23Electronic brake control
module supply motor24Seat module rear25–26Transmission range control
module27Aero shutter28Auxiliary oil pump29E-booster motor source30Front power windows31In-panel bussed electrical
centreNumberUsage32Rear window defogger33Heated exterior rear view
mirror34Pedestrian friendly alert
function35–36–37Current sensor38Rain sensor39–40E-booster (ECU)41Power line communication
module42Automatic occupant
sensing43Window switch44Rechargeable energy
storage system
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228Vehicle careNumberUsage45Vehicle integration control
module46Integrated chassis control
module47Headlight levelling device48Integrated chassis control
module49Interior rear view mirror50–51E-booster52Rear camera53–54A/C control module55Rechargeable energy
storage system pump56–57Power electronics coolant
pump58Engine control moduleNumberUsage59Electric steering column
lock60HVAC electric heater61On-board charging module62Transmission range control
module 163Electric cooling fan64Engine control module65Auxiliary heater pump66–67Drive unit controller68Rear window defogger69–70A/C control module71–72Transmission range control
moduleNumberUsage73Single power inverter
module74–
After having changed defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunctions may occur.
Instrument panel fuse boxThe fuse box is located on the driver's
side behind a cover in the instrument
panel.
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Vehicle care229To open the compartment, compress
the locking tabs, fold cover down and
remove.The instrument panel fuse block is on the left side of the instrument panel.
To access the fuses, open the fuse
panel door by pulling out.NumberUsage1Video processing module2Indicator light solar sensor3Side blind zone assistant4Passive entry, passive start5Central gateway module6Body control module 47Body control module 38Body control module 29Body control module 110Trailer interface module 111Amplifier12Body control module 813Data link connector 114Automatic parking assist15–NumberUsage16Single power inverter
module 117Body control module 618Body control module 519–20–21–22–23USB24Wireless charging module25Reflected LED alert display26Automatic heated steering
wheel27–28Instrument cluster 229Trailer interface module 230Headlight levelling device31OnStar
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230Vehicle careNumberUsage32–33Heating, ventilation, and airconditioning module34–35Instrument panel cluster 136Radio37–38–39–40–41–42–43Body control module 744Sensing and diagnostic
module45Front camera module46Vehicle integration control
moduleNumberUsage47Single power inverter
module 248Electric steering column
lock49Auxiliary jack50Steering wheel controls51Steering wheel controls
backlighting52Smartphone remote func‐
tion module53Auxiliary power outlet54–55Logistic56–57–58–59–60–To reinstall the door, insert the bottom tab first, then push the door back into its original location.