Automatic Climate Control System, on Board Diagnostic (OBD)

Automatic Climate Control System, On Board Diagnostic (OBD)

NOTE:
- There are various versions of the operating and display module, Climatronic Control Module J255. Attention must therefore be paid to the exact assignment when replacing an operating and display module.
- Depending on the date of issue, the operating and display module, Climatronic Control Module J255 may also be referred to as A/C Control Head E87 in various workshop publications (e.g. in wiring diagrams for vehicles up to Model Year 2004).
- On this vehicle, the diagnostic connections of various control modules (e.g. radio) are wired to a different diagnostic connector pin. To permit the exchange of data with these control modules, the diagnostic cable between the vehicle and the vehicle diagnostic system (e.g. Diagnostic Operation System VAS 5051A or Vehicle Diagnosis Service Syst. VAS 5052 ) must be installed with the K-Lead Adapter Vas6017B VAS 6017B (or the K-Lead Adapter VAS 6017A ).
- As of VIN "400000" in Model Year 2005 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 with no prior specification of any particular VIN) and depending on vehicle equipment, certain control modules will no longer be connected to the K / L-wire of the 16-pin diagnostic socket in the vehicle (e.g. Engine Control Module (ECM) J623, Transmission Control Module (TCM) J217 and Airbag Control Module J234 ). These control units use "CAN signal wires" to exchange information for example with the Diagnostic Operation System VAS 5051A. As the K-Lead Adapter VAS 6017A is not provided with these connections, the K-Lead Adapter Vas6017B VAS 6017B is required for the On Board Diagnostic (OBD) of these control modules.
- In order to be able to perform On Board Diagnostic (OBD) with the Fault Read Out Device V.A.G 1551 or the Mobile Scan Tool V.A.G 1552 on this vehicle, the program card in the Fault Read Out Device V.A.G 1551 must correspond to at least data version "No. 9" and in the Mobile Scan Tool V.A.G 1552 to at least data version "No. 6". For vehicles as of VIN "400000" in Model Year 2005 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 with no prior specification of any particular VIN, On Board Diagnostic (OBD) using the Fault Read Out Device V.A.G 1551 or the Mobile Scan Tool V.A.G 1552 will no longer be possible for all vehicle systems.