Diagnostic Operation System VAS 5051A, Connecting and Selecting Functions
Diagnostic Operation System VAS 5051A, Connecting And Selecting Functions
Test requirements:
- Vehicle power supply OK
- Fuses OK
NOTE:
- The various functions of the Diagnostic Operation System VAS 5051A are described in the system operating instructions.
- The design and function of the Diagnostic Operation System VAS 5051A are described in the 202 Diagnostic Operation System VAS 5051A. This also contains a range of examples illustrating correct system utilization.
- On this vehicle, the diagnostic connections of various control modules (e.g. radio) are wired to a different diagnostic connector pin. In order to exchange 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 a K-Lead Adapter Vas6017B VAS 6017B (or the K-Lead Adapter VAS 6017A ). Service Precautions
- For vehicles up to VIN 399999 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) can also be performed using the Fault Read Out Device V.A.G 1551 or the Mobile Scan Tool V.A.G 1552 in mode "1" (rapid data transfer). The various functions are described in the relevant system operating instructions. 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.
- 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".
- With the ignition switched off, connect Diagnostic Operation System VAS 5051A using, for example, Diagnostic Cable - 3 Meter VAS 5051/5A and K-Lead Adapter Vas6017B VAS 6017B (or K-Lead Adapter VAS 6017A ) to the 16-pin diagnostic socket in the vehicle.
- Switch ignition on.
Or
- Start engine.
NOTE:
- Pay attention to the applicable notes on Output Diagnostic Test Mode (DTM) diagnosis. Scan Tool Testing and Procedures
- If On Board Diagnostic (OBD) must be performed for several vehicle systems, use the K-Lead Adapter Vas6017B VAS 6017B (or the K-Lead Adapter VAS 6017A ) if applicable.
- The LEDs on the K-lead adapter VAS 6017 light as soon as the transmits a request and as soon as the relevant vehicle control module responds or to indicate the channel (1 or 2) on which the information is output.
- Set "Auto" mode on the operating and display module, Climatronic Control Module J255.
- Select "Vehicle On Board Diagnostic (OBD)" function on Diagnostic Operation System VAS 5051A.
- Select vehicle system "08 - Air conditioner/heater electronics".
NOTE:
- Vehicle system selection prompt appears in display zone - 1 -.
- "Scrolling" the screen display with the bar - 2 - permits display of vehicle systems (for all vehicle models and equipment levels) which are intended for On Board Diagnostic (OBD) but are not currently visible on the screen.
- Wait until "Select diagnostic function" appears in zone - 1 - of Diagnostic Operation System VAS 5051A display.
NOTE:
- Control module identification now appears in display zone - 2 - of Diagnostic Operation System VAS 5051A.
- Check the following if "Vehicle system not available" appears in zone - 1 - of Diagnostic Operation System VAS 5051A display:
- Voltage supply to operating and display module, Climatronic Control Module J255 using wiring diagram
- Wiring between 16-pin diagnostic socket and operating and display module, Climatronic Control Module J255
- Check the following if an additional display zone - 2 - with the message "Diagnostic Bus interrupted" and references to possible cause of trouble appears on Diagnostic Operation System VAS 5051A display:
- Voltage supply to 16-pin diagnostic socket using wiring diagram
- Voltage and condition of Battery A (vehicle Battery) "Guided Fault-Finding" Vehicle Diagnosis, Testing Info. System VAS5051B or Vehicle Diagnosis Service Syst. VAS5052
- "Diagnostic Bus interrupted" display with references to possible cause of trouble also appears on Diagnostic Operation System VAS 5051A if a problem has occurred during On Board Diagnostic (OBD) or in the event of interruption of data exchange between the Diagnostic Operation System VAS 5051A and the operating and display module, Climatronic Control Module J255.
- The current screen display can be printed out by selecting the "Print" function on the Diagnostic Operation System VAS 5051A display.
- Possible causes of trouble can be displayed by selecting "Help" function on Diagnostic Operation System VAS 5051A display.
- Touching the buttons shown on the Diagnostic Operation System VAS 5051A display allows movement forwards or backwards in the program (arrow buttons), or to switch functions.
- The desired function can now be started via the Diagnostic Operation System VAS 5051A display.
Control module identification (e.g. display field - 2 - )
08 - AC heating electronics Selected vehicle system
8E0 820 043 X Part No.
A4 Automatic AC Audi A4 A/C control module
XXXX Data version (hardware and software) of control module
Code XXXXX: Applies to vehicle-specific optional extras
WSC XXXXX: Dealer identification number of dealer with which coding was last performed
- As of April 2002, operating and display modules, Climatronic Control Module J255 with part number index "H" onwards (with software version as of "XX15" ) have gradually been installed. With these operating and display modules, Climatronic Control Module J255 the passenger compartment temperature regulation is designed somewhat cooler.
- Vehicles as of Model Year 2003 are only to be installed with operating and display modules, Climatronic Control Module J255 with part number index "H" onwards.
- Vehicles with 4-cyl. engine and gasoline direct injection (FSI) are only to be installed with operating and display modules, Climatronic Control Module J255 with part number index "H" onwards.
- Vehicles up to VIN "399999" in Model Year 2005 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 with no prior specification of any particular VIN) are not to be installed with operating and display modules, Climatronic Control Module J255 with part number index "AJ" onwards.
- 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) are only to be installed with operating and display modules, Climatronic Control Module J255 with part number index "AJ" onwards.
- The operating and display module, Climatronic Control Module J255 switches automatically to "Econ" mode if, following installation of a new operating and display module, Climatronic Control Module J255, basic setting was not performed or if the pressure measured by the High Pressure Sensor G65 is too low or too high (the compressor must not be activated). Scan Tool Testing and Procedures This status is displayed as being a malfunction as of hardware/software version "0711".
- If, after switching on the ignition, the operating and display module, Climatronic Control Module J255 switches automatically to "Off" mode and if it is only possible to set "Def" mode (no other settings possible) with the ignition switched on, check the assignment of the ignition key. If, for example, the ignition has been switched on using a key which has not been released for this vehicle or the Instrument Cluster Control Module J285 does not transmit a key number via the CAN-Bus comfort system (provided as of hardware/software version "0711" ), functioning of the operating and display module, Climatronic Control Module J255 is restricted to these modes.
- As of hardware/software version "0711", the operating and display module, Climatronic Control Module J255 saves the VIN transmitted via the CAN-Bus comfort system. If an operating and display module, Climatronic Control Module J255 which has already been installed is installed in a different vehicle, this is detected by the operating and display module, Climatronic Control Module J255 and the malfunction "Control module incorrect Vehicle Identification Number (VIN)" is stored. If this malfunction is displayed, the old VIN must be erased via the "Adaptation" function,
- With the Audi Cabrio, different settings are stored for closed and open convertible top in the operating and display module, Climatronic Control Module J255. On opening and closing the convertible top, the operating and display module, Climatronic Control Module J255 then automatically alters the setting to the value last set with convertible top closed or open.