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Erasing fault memory, end of output > < Control elements actuated

A4 Cabriolet Mk2

Basic setting
Basic setting
–  With the ignition switched off, connect up vehicle diagnostic, testing and information system -VAS 5051A- using, for example, diagnostic wire -VAS 5051/5A- and K-wire adapter -VAS 6017B- (or K-wire adapter -VAS 6017A-) to the 16-pin diagnostic socket in the vehicle → Chapter.
–  Switch on ignition.
–  Use address word “08” to select air conditioner/heater electronics → Chapter.
Requirements:
t  Fault memory interrogated , displayed faults eliminated and fault memory erased → Chapter.
t  Control unit with display in dash panel insert -J285- encoded as specified and adaption performed → Chapter, → "Guided fault-finding" function of vehicle diagnostic, testing and information system VAS 5051 and → Electrical system; Rep. Gr. 01
t  Air conditioner switched on (“Econ” or “Auto” mode)
–  Check encoding of operating and display unit, Climatronic control unit -J255- and correct if necessary → Chapter.
  Note
The currently valid code is displayed in the measured value block (display group “019”) → Chapter.
   
Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-:
–  Select function “04 - Basic setting”.
  A87-0314
Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-:
t  Prompt for entering display group appears in display zone -1-.
t  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.
  A87-0318
Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-:
The following control motors are now actuated and their current feedback value is indicated in display zone “1”. At present the control motors are arranged as follows:
t  1. position: Left temperature flap control motor -V158-
t  2. position: Right temperature flap control motor -V159-
t  3. position: Defroster flap control motor -V107-
t  4. position: Central flap control motor -V70-
t  5. position: Air flow flap control 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)
t  6. position: Air recirculation flap control motor -V113-
The code entered in the control unit with display in dash panel insert -J285- is interrogated by way of the convenience data bus system and the settings intended for the air conditioner are adopted → Chapter, → Chapter (the currently valid code is displayed in the measured value block, display group “019”), → "Guided fault-finding" function of vehicle diagnostic, testing and information system VAS 5051 and → Electrical system; Rep. Gr. 01.
The end positions of the control motors (resistance values in stop position) are stored in the operating and display unit, Climatronic control unit -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 unit, Climatronic control unit -J255- for use in the event of emergency operation.
  A87-0387
Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-:
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
t  Basic setting has been completed when “0” appears in display zones.
t  Right-hand drive vehicles are not fitted with an air flow flap control motor -V71-. “255” is therefore displayed for these vehicles at position 5 during basic setting (open circuit). This display also switches to “0” as soon as basic setting for the other control motors has been completed.
t  Touch ← key to return to selection program.
t  If a fault in a control motor potentiometer is detected during basic setting, a substitute value is stored as adaption value (learned value for this potentiometer) and displayed in the appropriate measured value block. The fault “Adaption limit exceeded” is stored in the fault memory for this control motor.
t  On starting basic setting, the temperature display unit transmitted by the convenience data bus system is read and the unit (°C or °F) set in the control unit in dash panel insert -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 unit, Climatronic control unit -J255-.
t  Touching the keys -2- permits switching to a different display group.
t  Touching the keys -3- permits switching to a different function (e.g. from “Basic setting” to “Reading measured value block” and back again).
–  Interrogate fault memory → Chapter.
–  Following display and printout of last fault, rectify faults in line with fault table → Chapter.
  Note
If a fault has been detected and eliminated, basic setting is to be repeated.
  A87-0387

Erasing fault memory, end of output > < Control elements actuated