Get Mixture preparation - injection -> 3.2 Reading and erasing engine control unit fault memory Guide for Volkswagen Touareg SUV First Generation (2002-2010)

Touareg 2003 ➤

8-cylinder injection engine - Edition 11.2011

Engine control unit

Removing and installing engine control unit ⇒ page 145 .

Reading and clearing engine control unit fault memory

⇒ page 145 .

3.1

Removing and installing engine control

unit

If you wish to replace the engine control unit, connect the vehicle

diagnosis, testing and information system -VAS 5051B- and carry

out the guided function „Renew control unit“.

Removing

– Switch off ignition.

– Remove windscreen wiper motor on right side: ⇒ Electrical

system; Rep. gr. 92 ; Removing and installing windscreen

wiper system .

– Release both connectors from control unit and pull off.

– Control unit can now be removed.

Installing

– Place control unit into retaining frame.

– Fit connector and lock in position.

– Install windscreen wiper motor on right side: ⇒ Electrical sys‐

tem; Rep. gr. 92 ; Windscreen wiper system .

– Install plenum chamber cover.

– Adapt new engine control unit: ⇒ Vehicle diagnostic tester;

„Guided functions“ .

3.2

Reading and erasing engine control unit

fault memory

Special tools and workshop equipment required

♦ Vehicle diagnosis, testing and information system -VAS 5051-

♦ Diagnosis cable -VAS 5051/1- or -VAS 5051/3-

Procedure

– Connect vehicle diagnosis, testing and information system -

VAS 5051- as follows:

3. Engine control unit

145

Touareg 2003 ➤

8-cylinder injection engine - Edition 11.2011

– Connect connector of diagnosis cable -VAS 5051/1- or -

VAS 5051/3- to diagnostic connection.

– Start engine and run at idling speed.

Only when engine does not start:

– Switch on ignition.

Selecting operating mode:

– Press button on display for „Vehicle self-diagnosis“.

Selecting vehicle system:

– Press „01 - Engine electronics“ button on display.

The control unit identification with code as well as chassis number

and immobilizer identification number will be indicated on the dis‐

play.

Note

A print-out can be made if required. Tghen press the Print but‐

ton.

– Press → button.

Select diagnostic function:

– Press „02 - Read fault memory“ button on display.

– If no fault is stored in engine control unit „0 fault detected“ is

displayed.

– If faults are stored in the engine control unit, these are shown

one below the other on the display.

– Press ← button.

– Press „05 - Clear fault memory“ button on display.

– Select „06-End output“ function.

146

Rep. gr.24 - Mixture preparation - injection

Mixture preparation - injection -> 3.2 Reading and erasing engine control unit fault memory for Your Volkswagen Touareg SUV First Generation (2002-2010)

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