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SSP340 The Passat 2006 Electrical System
Service Training
Self-study Programme 340
The Passat 2006
Electrical System
Design and Function
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The Passat 2006 features further innovations in
the area of vehicle electrics and electronics.
One example is the entry and start authorisation
switch. For the first time, you do not have to turn
the ignition key to start the engine.
The developers have paid particular attention to
comfort in this car.
This self-study programme should help you get to
know the electrical system in the Passat 2006
and become familiar with the new features.
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NEW
Important
Note
The self-study programme shows the design and function
of new developments.
The contents will not be updated.
For current testing, adjustment and repair instructions,
refer to the relevant
service literature.
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Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Data Bus Systems
Control Units for Powertrain CAN Data Bus . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Control Units for Convenience CAN Data Bus . . . . . . . . . . . . . . . . . . . . . . . 10
Control Units for Infotainment CAN Data Bus
Combi and Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sub-bus Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Onboard Power Supply
Electronics Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Relay Carriers and Fuse Boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Onboard Power Supply Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Exterior lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Data Bus Diagnostic Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Control Unit with Display in Dash Panel Insert . . . . . . . . . . . . . . . . . . . . . . . 34
Convenience System Central Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Immobilizer IV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Start-Stop System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Electronic Steering Column Lock Control Unit . . . . . . . . . . . . . . . . . . . . . . . 46
Convenience and Safety Electronics
Corning Light System (Advanced Frontlighting System) . . . . . . . . . . . . . . . . 48
Customisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Parking Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Test Yourself . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
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Introduction
Fuse Boxes and Relay Locations in the Onboard Power Supply
Locations
The Passat 2006 onboard power supply is
decentralised and is therefore similar to the
Golf 2004 system. The Passat also has a fuse box
on the right-hand side of the dash panel due to
the large number of electrical consumers.
The distribution of the fuse boxes and relays
among different locations allows fast and precise
fault diagnosis.
Fuse box,
in right-hand side of
dash panel
Electronics box,
on left of engine compartment
Back-up fuse box,
on left of engine compartment
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Relay carrier,
on left under dash panel,
above onboard power supply
control unit
Relay carrier on onboard power
supply control unit,
on left under dash panel
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Fuse box,
on left in dash panel
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