volkswagen Workshop Repair Guides

Volkswagen Passat Workshop Service and Repair Manuals - B3 Model

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Checking fuel pressure regulator and holding pressure > < Checking speed signal

Matching Electronic Control Unit to Immobilizer for Motronic Injection System

Motronic injection and ignition system (4-Cyl.)
Motronic injection and ignition system
Matching engine electronic control unit to electronic immobilizer

Special tools, testers and auxiliary items

  • ◆ Fault reader V.A.G 1551 or vehicle system tester V.A.G 1552 with cable V.A.G 1551/3

Test conditions

  • ● Authorized vehicle key required

Work sequence
 
N29-0002
  • ‒ → Unclip cover for diagnostic connections.
  • ‒ Connect fault reader with cable V.A.G 1551/3.
  • ‒ Switch on ignition.
  • ‒ Operate fault reader taking into account the information on the display:
  • ‒ Input 1 for "Rapid data transmission".
  • ‒ Input 25 for address word "Immobilizer" and confirm with Q.
  • ‒ Press ⇒ button.
 
→ Indicated on display:
Rapid data transmission     HELP
Select function XX
  • ‒ Input 10 for "Adaption" function and confirm with Q.
 
→ Indicated on display:
Adaption
Enter channel number XX
  • ‒ Input 00 for channel number 0 and confirm with Q.
 
→ Indicated on display:
Adaption     Q
Erase learned value?
  • ‒ Confirm entry by pressing Qbutton.
 
→ Indicated on display:
Adaption     ⇒
Learned value has been erased
  • ‒ Conclude adaption by pressing ⇒ button.
  • ‒ Input 06 for "End output" and confirm with Q.
  • ‒ Switch off ignition

Note:

The identity of the engine control unit is read into the immobilizer control unit when next switching the ignition on.

Checking fuel pressure regulator and holding pressure > < Checking speed signal