Audi Workshop Service and Repair Manuals > A4 Mk1 > Power unit | Motronic Fuel Injection and ignition system (4-cyl.) 07.96ä | Self diagnosis, V.A.G Inspection Service | Self-diagnosis

Motronic Fuel Injection and ignition system (4-cyl.) 07.96ä

Self-diagnosis

Encoding control unit

If the appropriate code for the vehicle is not displayed or if the control unit has been replaced, the control unit must be encoded as follows.

‒ Connect fault reader V.A.G 1551 (V.A.G 1552) and select the engine electronics control unit with the "Address word" 01. When doing this the ignition must be switched on.
(Connecting fault reader and selecting control unit for engine electronics .)

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ Press keys 0 and 7 for the function "Code control unit" and confirm entry with Q key.

→ Indicated on display:

Encoding control unit Q

Enter code number xxxxx (0-32000)

Compose the code number as follows (example):

Member State of the European Union	04
FWD without traction control system		0
5-speed manual gearbox			0
Audi A4				1
Code number	04	0	0	1

→ The display on fault reader V.A.G 1551 will show the control unit identification code e.g.:

8D0907557.. 1.8L R4/5V MOTR HS D.. ⇒

Coding 04001 WSC 12345

Note:

The next time the ignition is switched on the newly entered code will be activated.

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.

Encoding variants for the engine control unit


Country/emissions		Drive/auxiliary functions		Gearbox		Vehicle type
00 =	---	0 =	FWD without traction control system	0 =	5-speed manual gearbox	0 =	---
01 =	---	1 =	---	1 =	---	1 =	Audi A4
02 =	Non Member State of the European Union (MVEG I)	2 =	4WD without traction control system	2 =	---	2 =	---
03 =	---	3 =	---	3 =	Automatic transmission 01N	3 =	---
04 =	Member states of the European Union (MVEG II)	4 =	---	4 =	---	4 =	---
05 =	---	5 =	---	5 =	---	5 =	---
06 =	---	6 =	---	6 =	---	6 =	---
07 =	---	7 =	---	7 =	---	7 =	---
08 =	China and Confederation of Independent States (CIS)	8 =	---	8 =	---	8 =	---

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