With Nippondenso Compressor
Code Control Module (VAG 1551 function 07)
- Connect VAG 1551 Scan Tool to Data Link Connectors (DLC) in auxiliary relay panel I (left side of water plenum) using diagnostic cable VAG 1551/1.
Note:
If there is no display on the VAG 1551 &an Tool, check the B+ power supply to the black DLC.
Press the HELP button to print out additional information and opera ting instructions.
- Switch ignition ON.
- Press PRINT button to switch printer on (button lights up).
- Press button -1- to select Rapid data transfer operating mode 1.
- Press buttons -0- and -8- to insert AC/Heating Electronics address word 08.
- Press -Q- button to enter input.
A/C control head identification and coding are displayed
4A0 820 043A Klima-Vollautomat DXX->
Coding 00062 WSC 23890
Note:
A/C control head coding may be displayed with or without the 1st and 2nd digits (e.g. 062 instead of 00062), depending on the VAG 1551 Scan Tool program card version.
A/C control head coding
1st and 2nd digits (where applicable)
Code Description
00___ not used
3rd digit
Code A/C compressor type
0__ Zexel
1__ Nippondenso
4th digit
Code Engine application
_5_ 5-cylinder
_6_ 6-cylinder
5th digit
Code Market version Engine type
2 USA/Canada Gasoline
Notes:
Zexel A/C compressors have been installed from the start of production. During my 1996, a new Nippondenso A/C compressor is installed as a running change on all vehicles with 6-cylinder engines.
On the Nippondenso compressor, A/C compressor speed sensor -G111- has been eliminated. The compressor is instead protected by an overheat fuse in A/C clutch -N25-.
The A/C control head -E87- must be coded for the specific vehicle application, including the type of A/C compressor installed (Zexel or Nippondenso).
Vehicles equipped with a Nippondenso compressor must have an A/C control head -E87- identified with index letter K or higher to allow for correct coding.
For correct part number and appllcation of replacement A/C control head -E87- see latest parts catalog.
The software version displayed with A/C control head identification (shown here as "DXX") has no signfficance for Service Department use.
- Press -> button.
Indicated on display
Rapid data transfer HELP
Select lunction 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.
Indicated on display
Code control module
Enter code number XXXXX (0-00127)
- Using keypad on VAG 1551 Scan Tool, enter code for A/C control head according to compressor type, engine cylinder configuration and market version.
Examples:
Coding Market version Compressor Engine
00062 USA/Canada Zexel 6cyl. gasoline
00162 USA/Canada Nippondenso 6cyl. gasoline
- Press -Q- button to confirm input.
A/C control head identification and coding are displayed
4A0 820 043A Kilma-Vollautomat DXX->
Coding 00062 WSC 23890
- Press -> button.
Notes:
Vehicles equipped with a Nippondenso compressor must have an A/C control head -E87- identified with index letter "K" or higher to allow for correct coding.
For correct part number and application of replacement A/C control head -E87-, see latest parts catalog.
Indicated on display
Rapid data transfer HELP
Select function XX
- Carry out basic setting.
- Check DTC memory.