Basic Setting (function 04)

With the ignition switched off, connect Diagnostic Operation System VAS 5051A using 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 → Diagnostic Operation System VAS 5051A, connecting and selecting functions .
Switch ignition on.
Use address word "08" to select A/C heater electronics → Diagnostic Operation System VAS 5051A, connecting and selecting functions .

Requirements:

DTC memory checked, displayed faults eliminated and DTC memory erased → Diagnostic Trouble Code (DTC) Memory, erasing (function 05) .
Instrument Cluster Control Module J285 coded as specified and adaptation performed → Climatronic Control Module J255, coding (function 07) , Vehicle Diagnosis, Testing Info. System VAS5051B or Vehicle Diagnosis Service Syst. VAS5052
Air conditioner switched on ("ECON" or "Auto" mode)

Check coding of operating and display module, Climatronic Control Module J255 and correct if necessary → Read Measuring Value Block (function 08) .

NOTE:

The currently valid code is displayed in the measuring value block (display group "019") → Climatronic Control Module J255, coding (function 07) .

Fig 1: Locating Control Module Identification With Code Indicated On The Display

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Indicated on display of Diagnostic Operation System VAS 5051A :

Select function "04 - Basic setting".

Indicated on display of Diagnostic Operation System VAS 5051A :

Fig 2: Identifying Diagnostic Operation System VAS 5051A (Prompt For Entering Display Group Appears In Display Zone & Input Keypad Appears In Display Zone)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Prompt for entering display group appears in display zone - 1 -.
Input keypad appears in display zone - 2 -.

Use input keypad in display zone - 2 - to enter "01" or "001" for "display group number 001" and confirm by touching Q key.

Fig 3: Identifying Activated Control Motors & Feedback Value

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Indicated on display of Diagnostic Operation System VAS 5051A :

The following control motors are now activated and their current feedback value is indicated in display zone "1". At present the control motors are arranged as follows:

1. Position: Left Temperature Flap Motor V158
2. Position: Right Temperature Flap Motor V159
3. Position: Defroster Flap Motor V107
4. Position: Central Air Flap Motor V70

5. Position: Air Flow Flap Motor V71 (left-hand drive vehicles only; "255" is displayed for right-hand drive vehicles with no control motor, as there is no control motor connected)
6. Position: Recirculation Flap Motor V113

The code entered in the Instrument Cluster Control Module J285 is checked via the CAN-Bus comfort system and the settings intended for the air conditioner are adopted → Climatronic Control Module J255, coding (function 07) , → Read Measuring Value Block (function 08) (the currently valid code is displayed in the measuring value block, display group "019"), Vehicle Diagnosis, Testing Info. System VAS5051B or Vehicle Diagnosis Service Syst. VAS5052.

The end positions of the control motors (resistance values in stop position) are stored in the operating and display module, Climatronic Control Module J255 (resistance value of potentiometers in control motors) and used for further control action.

Once the control motors have reached both end stops, they are moved again from one stop to the other. During this process, the adjustment time is measured and stored in the operating and display module, Climatronic Control Module J255 for use in the event of emergency operation.

Indicated on display of Diagnostic Operation System VAS 5051A :

Fig 4: Identifying Activated Control Motors & Feedback Value

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The movement of the control motors can be observed on the display (zone - 1 -) (the feedback values in display zones "1" to "6" change).

Wait until display "0" appears in display zone - 1 - for the feedback values indicated.

NOTE:

Basic setting has been completed when "0" appears in display zones.
Touch ← key to return to selection program.
If a fault in a control motor potentiometer is detected during basic setting, a substitute value is stored as adaptation value (learned value for this potentiometer) and displayed in the appropriate measuring value block. The DTC "Adaptation limit exceeded" is stored in the DTC memory for this control motor.
On starting basic setting, the temperature display unit transmitted by the CAN-Bus comfort system is read and the unit (°C or °F) set in the Instrument Cluster Control Module J285 is adopted. Simultaneously pressing the recirculated-air button and the + temperature button for the left side for more than 2 seconds permits switching of the display of the operating and display module, Climatronic Control Module J255.
Touching the keys - 2 - permits switching to a different display group.
Touching the keys - 3 - permits switching to a different function (e.g. from "Basic setting" to "Reading measuring value block" and back again).

Check DTC memory → Diagnostic Trouble Code (DTC) Memory, checking (function 02) .
After display and printout of last fault, rectify faults in line with DTC table → Diagnostic Trouble Code (DTC) table .

NOTE:

If a fault has been detected and eliminated, basic setting must be repeated.