Programming and Relearning

A/C Control Head -E87-, Coding


NOTE:
- The basis setting must be carried out after each coding procedure , [1][2]Basic Setting (Function 04)
- If a new control head is installed and its display panel flashes (for about 2 minutes) when the ignition is switched on, code the A/C control head and carry out basic setting.
- The air conditioning control changes with the 2001 to 2002 model year change. The climate control conversion on the Audi allroad does not occur with the 2001 to 2002 model year change, but instead changes in model year 2002.
- Connect VAG1551 Scan Tool (ST), Press buttons -0- and -8- to insert "AC/Heating Electronics" address word 08 and advance program until "Select function XX" appears on display, Scan Tool Connecting and Initial Checks
- Switch printer on via the PRINT button (indicator lamp in button lights up).


Indicated on display (function selection):


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -7- to select "Code Control Module", function 07.

Indicated on display:


Rapid data transfer Q
07 - Code control module


- Press -Q- button to confirm input.

The display reads:


Code control module
Enter code numbers XXXXX


NOTE: The -> button is used to advance through the program sequence.


- Code A/C Control Head -E87- according to vehicle type, model year, engine, vehicle equipment and country variant.
- Press -Q- button to confirm input.

After a short period of time the control module identification, the coding and the Workshop Code (WSC) of the VAG1551 are indicated:


4B0 820 043 X A6 Auto Climate Cntrl XXXX
Coding XXXXX WSC ZZZZZ


- Perform complete basic setting, [1][2]Basic Setting (Function 04)


NOTE:
- Between the 36th and 44th week of 1998 the production of climate control unit model "1" has been converted to climate control model "2". Both versions can be differentiated on certain marks.
- Vehicles with 8 cylinder engines are only equipped with climate control units from model "2".
- The version of A/C Control Head can vary, the allocation must be correct.