Initiating & Checking Control Module Versions

Anti-theft Immobilizer On Board Diagnostic (OBD), Initiating & Checking Control Module Versions

If malfunctions occur in the sensors and components being monitored, they will be stored in the Diagnostic Trouble Code (DTC) memory together with an indication of the type of malfunction.

A maximum of 4 DTCs can be stored simultaneously.

Sporadic malfunctions are automatically cancelled if they are not repeated in next 50 engine starts.

OBD must be initiated at the commencement of troubleshooting and the stored information checked with the VAG 1551/1552 Scan Tool or VAS 5051 Vehicle Diagnostic, Testing and Information System.


NOTE: The following description and illustrations deal specifically with the VAG 1551 scan tool. VAG 1552 and VAS 5051 procedures are similar.


The information displayed is used in conjunction with a DTC table which has information on the possible causes for pin-pointed repair steps.

Test requirements:
- All fuses OK according to wiring diagram
- Voltage supply OK (at least 11.5 V).
- Scan Tool VAG 1551 or VAG 1552 connected.


NOTE:
- Connecting Scan Tool. Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks" Testing and Inspection
- The following description applies only to Scan Tool VAG 1551.


- Switch on ignition.
- Switch on printer with the PRINT button (indicator lamp in button lights up).
- Press button -1- to select operating mode 1, "Rapid data transfer".

Indicated on display


Rapid data transfer HELP
Input address word XX


- Press buttons -1- and -7- to input address word 17 "Instrument Cluster".
- Press -Q- button to confirm input.

Indicated on display (example only)


1J0919860D A4 COMBI INSTR. VDO V04 ->
Coding 00042 WSC 00000


- Press -> button.

Indicated on display (example only)


IMMO-IDENT No.: VWZ7ZOV0066808 ->


Indicated on display


Rapid data transfer HELP
Select function XX


Immobilizer identification number (14 characters, VW...)

- Press -> button.


NOTE:
- If this message appears in the display:


Control module does not answer! HELP


- Press HELP button to print out a list of possible malfunction causes.
- After rectifying malfunctions, re-enter address word 17 for Instrument cluster and press -Q- button to confirm input.


Indicated on display (example only)


IMMO-IDENT No.: VWZ7ZOV0066808 ->


- Press -> button.

Indicated on display (select functions):


Rapid data transfer HELP
Select function XX


List of available functions







Indicated on display


Rapid data transfer HELP
Select function XX