Initiating and Checking Control Module Versions

Climatronic - On Board Diagnostic (OBD), Initiating And Checking Control Module Versions

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. Scan Tool Connecting and Initial Checks
- 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 -0- and -8- to input address word 08, "AC/Heating Electronics".

Indicated on display:


Rapid data transfer Q
08 AC/Heating Electronics


- Press -Q- button to confirm input.


Indicated on display:


Rapid data transfer Q
Tester sends address word 08


Indicated on display (example only):


3B1 907 044 A CLIMATRONIC SXX
Coding 01000 WSC XXXXX


- Blue (illumination) display 3B1 907 044 A,
- Control module part number
- Climatronic = System designation
- SXX = Software version
- Coding: (If no code has been input, e.g.: 00000, the display flashes)

Check control model coding, coding (function 07). Climatronic Control Module -J255- Coding (Function 07)

- WSC = Workshop code


CAUTION!
Part numbers are for reference only. Always check with your Parts Department for the latest parts in formation.


NOTE:
- If one of the DTCs shown appears in the display, the possible causes of the malfunction can be printed out with the HELP button.


Rapid data transfer HELP
control module does not answer!


(The ignition must be switched on!)


Rapid data transfer HELP
K wire not switching to positive!


- DTCs have occurred at the start or during the program (external reason for malfunctions?).


Rapid data transfer ->
No signal from control module!


- Check data link connector cables, voltage and ground supply connections.


Rapid data transfer ->
Fault in communication build-up


Display after input of address word 08:


Rapid data transfer
Tester sends address word 08


The control module identification number is displayed:


3B1 907 044 A CLIMATRONIC SXX
Coding 01000 WSC XXXXX


- Press -> button.


Indicated in display


Rapid data transfer HELP
Select function XX


List of available functions

Function
01 - Check Control Module Versions
02 - Check DTC Memory
03 - Output Diagnostic Test Mode (DTM)
04 - Basic Setting
05 - Erase DTC Memory
06 - End Output
07 - Code Control Module
08 - Read Measuring Value Block


NOTE:
- Press HELP button to print out a complete list of available functions. This list indicates function capability of VAG 1551 Scan Tool (ST) only, and does not necessarily reflect function capability of vehicle systems equipped with OBD. For AC/Heating Electronics address word 08, do not attempt to select functions other than those listed above.
- After function is completed and forwarded with -> button, VAG 1551 Scan Tool (ST) returns to following start position:


Indicated on display (select function):


Rapid data transfer HELP
Select function XX