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Adaption following replacement of engine control unit > < Procedure in the event of loss of keys

A2

Electrical system, Self-diagnosis
Immobilizer self-diagnosis - immobilizer III
Adaption following replacement of dash panel insert

Notes:

  • ◆ The dash panel insert (immobilizer) is adapted to the engine control unit. Re-adaption to the engine control unit must be performed if the dash panel insert is replaced.
  • ◆ After adapting dash panel insert to engine control unit, vehicle key matching is required .
  • ◆ Adaption can be terminated by pressing "C" key on V.A.G 1551.

Requirements:

  • ‒ Insert old (authorised) ignition key in ignition lock and switch on ignition.
  • ‒ If no authorised ignition key is available, new ones must be made and matched after "Adaption following replacement of dash panel insert".
  • ‒ Connect up fault reader V.A.G. 1551 and start engine electronics self-diagnosis with address word "01".
 
→ Indicated on display:
Rapid data transfer    HELP
Enter address word XX

Address word for engine electronics 01:

  • ‒ Press keys 0 and 1.
 
→ Indicated on display:
Rapid data transfer    Q
01 - Engine electronics
  • ‒ Confirm entry with Q key.
 
→ Adjacent display appears after approx. 5 s:
036906034Q    1.4l/R4    EPC         AG    D00⇒
Code 71    WSC    06812
  • ‒ Press ⇒ key.
 
→ Indicated on display:
WAUZZZ8ZZYN002341 AUZ7Z0X0590944    
  • ◆ WAUZZZ8ZZYN002341: 17-position vehicle identification no. (chassis number)
  • ◆ AUZ7Z0X0590944:14-position identification number of immobilizer control unit

With 14-position identification number of engine control unit, PIN number must be determined by way of direct system interrogation (as for direct interrogation of radio code).

Attention:

The PIN number is intended for internal use only and is not to be divulged to customers.

  • ‒ Press ⇒ key.
 
→ Indicated on display:
Rapid data transfer    HELP
Select function XX
  • ‒ Press keys 0 and 6 to select "End output" function.
 
→ Indicated on display:
Rapid data transfer    Q
06 - End of output
  • ‒ Confirm entry with Q key.
 
→ Indicated on display:
Rapid data transfer    HELP
Enter address word XX
  • ‒ Start self-diagnosis of immobilizer (dash panel insert).

Address word for immobilizer: 17

  • ‒ Press keys 1 and 7.
 
→ Indicated on display:
Rapid data transfer    Q
17 - Dash panel insert
  • ‒ Confirm entry with Q key.
 
→ Adjacent display appears after approx. 5 s:
8Z0920930 W1-DASH PANEL INSERT VDO D03⇒
Code    05042    WSC    06812
  • ‒ Press ⇒ key.
 
→ Indicated on display:
XXXXXXXXXXXXXXXXX AUZ7Z0X0023456

Replacement dash panel inserts already have a 14-position identification number (required if dash panel insert and engine control unit are replaced at the same time). This is however overwritten on adapting dash panel insert to engine control unit.

Note:

If an old dash panel insert is to be fitted, this must first be released by means of a login procedure . The appropriate PIN number has to be determined from the14-position identification number of the old dash panel insert. Proceed as follows after successful completion of login:

  • ‒ Press ⇒ key.
 
→ Indicated on display:
Rapid data transfer    HELP
Select function XX
  • ‒ Press keys 1 and 0 to select "Adaption" function.
 
→ Indicated on display:
Rapid data transfer    Q
10 - Adaption
  • ‒ Confirm entry with Q key.
 
→ Indicated on display:
Adaption
Enter channel number XX
  • ‒ Press keys 5 and 0 to select channel for adapting immobilizer to engine control unit.
  • ‒ Confirm entry with Q key.
 
→ Indicated on display:
Channel 50    Adaption 32000     ⇒
PIN ?
  • ‒ Press ⇒ key.
 
→ Indicated on display:
Channel 50    Adaption 32000
Enter adaption value XXXXX
  • ‒ Enter previously determined PIN number (of engine control unit) with a 0 before the 4-digit number (e.g. 01915).
  • ‒ "Disabled 10" appears on tester display if PIN number is entered incorrectly three times. This disabled time can also be displayed in measured value block 24 (position 2). Adaption is now disabled for 10 minutes. Time is doubled up to max. 255 minutes after every 3 further incorrect attempts.
  • ‒ Confirm entry with Q key.
 
→ Indicated on display:
Channel    50    Adaption    32000    Q
Wait

If PIN number has been entered correctly, chassis number of vehicle appears on tester display after a waiting time of approx. 4 seconds and fault lamp in dash panel insert lights.

The following messages may be displayed if a fault occurs during adaption:
 
→ CAN bus not available or engine speed detected (adaption only possible with engine stopped)
Channel    50    Adaption    32000    Q
Fault

 
→ Engine control unit cannot supply data (chassis number, 14-position identification number), as control unit is brand new or data available are incorrect
Channel    50    Adaption    32000    Q
Adaption not OK

 
→ Engine control unit does not supply data on account of previous use with a control unit (dash panel insert) of a different category (tuning protection)
Channel    50    Adaption    32000    Q
System not OK

 
→ Data cannot be supplied/accepted as there is either no key available or no suitable key
Channel    50    Adaption    32000    Q
Key not OK

Chassis number appears on display if there are no faults present.
 
→ Indicated on display:
Channel    50    Adaption    32000    Q
WAUZZZ8ZZYN002341
  • ‒ Confirm chassis number with Q key.
 
→ Indicated on display:
Channel    50    Adaption    32000    Q
Store altered value?
  • ‒ Press Q key.

Fault lamp in dash panel insert goes out on successful completion of adaption and a brief confirmation signal is given (lamp off for 0.5 s, lamp on for 0.5 s, lamp off).
 
→ Indicated on display:
Channel 50    Adaption 32000     ⇒
Altered value stored
  • ‒ Press ⇒ key.
 
→ Indicated on display:
Rapid data transfer    HELP
Select function XX

This completes adaption of immobilizer to engine control unit.

Matching of vehicle keys to immobilizer can now be commenced
.

Adaption following replacement of engine control unit > < Procedure in the event of loss of keys