Volkswagen Golf Variant / Jetta. Manual - part 745

 

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Volkswagen Golf Variant / Jetta. Manual - part 745

 

 

Control units

5.1

Onboard supply control unit -J519-

General description
The onboard supply control unit -J519- and the relay carrier at‐

tached to the onboard supply control unit -J519- located on left of

dash panel form one unit and cannot be separated (up to

MY2009).
The relay carrier on the onboard supply control unit -J519- is clip‐

ped under the onboard supply control unit -J519- and can be

removed (from MY2010).
Additional information:
⇒ Current flow diagrams, Electrical fault finding and Fitting loca‐

tions
⇒  Operating manual
The onboard supply control unit -J519- has the following functions

in the vehicle:
Up to MY2009
♦ Electrical load management
♦ Exterior light control
♦ Turn signal control
♦ Rear window wiper
♦ Heated rear window
♦ Interior light control
♦ Ambient lighting
♦ Terminal control
♦ Dimmers, instrument lighting
♦ Fuel pump presupply
♦ Alternator stand-by
♦ Horn
From MY2010
♦ Electrical load management
♦ Exterior light control
♦ Turn signal control
♦ Wipe/wash windscreen and rear window
♦ Headlight washer system
♦ Rain and light sensor
♦ Heated windscreen and rear window
♦ Interior light control
♦ Terminal control
♦ Dimmers of instrument lighting
♦ Footwell lights
♦ Fuel pump presupply

450

⇒ page 461

♦ Adapting leaving home time 

⇒ page 461

♦ Adapting switch-off time of heated rear window 

⇒ page 456

♦ Adapting footwell light dimmer value 

⇒ page 463

♦ Coding/decoding daytime running lights 

⇒ page 456

♦ Setting load management
♦ Setting „active time“ for headlight washer system

⇒ page 455

From MY2010
♦ Adapting acoustic feedback when unlocking 

⇒ page 457

♦ Adapting acoustic feedback when locking 

⇒ page 458

♦ Adapting turn signal cycles for lane change flash

⇒ page 458

♦ Adapting automatic unlocking on removing ignition key

⇒ page 459

♦ Adapting automatic locking at 15 km/h 

⇒ page 460

♦ Adapting confirmation of convenience closing 

⇒ page 460

♦ Adapting coming home time 

⇒ page 461

♦ Adapting leaving home time 

⇒ page 461

♦ Adapting ATA delay on opening driver door
♦ Adapting unlocking of individual doors 

⇒ page 462

♦ Adapting sensitivity of interior monitoring
♦ Adapting sensitivity of inclination sensor
♦ Deactivating factory mode 

⇒ page 463

♦ Adapting footwell light dimmer value 

⇒ page 463

♦ Adapting convenience operation via remote control

⇒ page 464

♦ Adapting country setting for intelligent alarm horn
♦ Adapting visual feedback when locking 

⇒ page 464

♦ Adapting remote control unit key 

⇒ page 465

5. Control units    

451

⇒ page 453

 .

Note

It depends on the fitted optional equipment whether or not the

above-mentioned adaptations can be carried out.

If the onboard supply control unit -J519- is to be renewed, the

procedure 

⇒ page 455

 for reading the codes stored in the on‐

board supply control unit -J519- must always be carried out.

Fault detection and fault display
The on-board supply control unit -J519- is equipped with self-di‐

agnosis.
For fault finding, use vehicle diagnosis, testing and information

system -VAS 5051B- in „Guided fault finding“ mode.

5.1.1

Removing and installing onboard supply

control unit -J519- (up to MY2009)

Note

If the onboard supply control unit -J519- is to be renewed, the

procedure 

⇒ page 455

 for reading the codes stored in the on‐

board supply control unit -J519- must always be carried out.

Removing
The onboard supply control unit -J519- is removed in the same

way as is the relay carrier on onboard supply control unit -J519-

on left of dash panel 

⇒ page 443

 .

Installing
The onboard supply control unit -J519- is installed in the same

way as is the relay carrier on onboard supply control unit -J519-

on left of dash panel 

⇒ page 443

 .

5.1.2

Removing and installing onboard supply

control unit -J519- (from MY2010)

Note

The relay carrier on the onboard supply control unit -J519- is

clipped under the onboard supply control unit -J519- and can

be removed.

If the onboard supply control unit -J519- is to be renewed, the

procedure 

⇒ page 455

 for reading the codes stored in the on‐

board supply control unit -J519- must always be carried out.

The following illustrations show removal on a LHD vehicle.

Removal and installation of onboard supply control unit -J519-

on an RHD vehicle are performed using the corresponding

mirror-image procedure.

452

♦ Switch off ignition and all electrical consumers.
♦ Remove the ignition key.

Removing
– Remove relay carrier from onboard supply control unit -J519-

⇒ page 445

 .

– Release and disconnect the three connectors.
– Press both catches -arrows- and swing onboard supply control

unit -J519- slightly downwards.

– Pull onboard supply control unit -J519- downwards and coun‐

ter to direction of travel out of holder.

Installing
Carry out installation in the reverse sequence, noting the follow‐

ing:
– Insert onboard supply control unit -J519- with rear into bracket

first and then push it upwards until it engages audibly.

5.1.3

Onboard supply control unit -J519- final

control diagnosis

Special tools and workshop equipment required
♦ Vehicle diagnosis, testing and information system -VAS

5051B-

Note

Whether the components named below can be checked depends

on the fitted equipment options.

The following components and functions can be checked by the

final control diagnosis for the onboard control unit -J519- :
♦ Left sidelight bulb -M1- / right sidelight bulb -M3- / left tail light

bulb -M4- / right tail light bulb -M2-

♦ Left headlight dipped beam bulb -M29- / right headlight dipped

beam bulb -M31-

♦ Left daytime running light bulb -L174- / right daytime running

light bulb -L175-

♦ Left headlight main beam bulb -M30- / right headlight main

beam bulb -M32-

5. Control units    

453

 

 

 

 

 

 

 

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