Volkswagen Golf Variant 2007 Workshop Manual page 460

Golf Variant 2007 ➤ , Golf Variant 2010 ➤ , Jetta 2005 ➤
Electrical system - Edition 07.2010
♦ Final control diagnosis
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
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
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
Rep. gr.97 - Wiring
⇒ page 453 .
for reading the codes stored in the on‐
.
.
for reading the codes stored in the on‐