Display group "020"
WARNING: This page is about a different car, the 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Position of thumb wheel for Drivers Seat Heating Element, actual and specified temperature of heater element in driver seat cushion (Drivers Heated Seat Temperature Sensor G59) and activation of heater element in driver seat cushion (Drivers Seat Heating Element Z6)
NOTE:
- This display group need only be observed for vehicles with heated seat cushions.
| Display field | Meaning | Remarks |
|---|---|---|
| 1 | Position of thumb wheel for Drivers Seat Heating Element (installed in operating and display module, Climatronic Control Module J255)
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NOTE:
- The position of the thumb wheel is determined in the operating and display module, Climatronic Control Module J255 by way of a potentiometer (variable resistor). Tolerances in this potentiometer make it impossible to determine a fixed value for the respective position.
| Display field | Meaning | Remarks |
|---|---|---|
| 2 | Actual temperature of driver seat cushion heater element in °C measured by Drivers Heated Seat Temperature Sensor G59 |
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NOTE:
- In the event of an open circuit in the wiring to the Drivers Heated Seat Temperature Sensor G59 or in the actual Drivers Heated Seat Temperature Sensor G59, an actual temperature of less than -30 °C (e.g. -49 °C) is displayed as substitute value and the seat heating is does not switch on.
- The seat heater elements (heater elements for seat cushion, backrest and side bolsters) are differently wired. Depending on the design of the seat heating system, the side bolsters may still be heated in the event of an open circuit in the seat cushion heater element, for example. As however the seat cushion (and thus the Drivers Heated Seat Temperature Sensor G59 in the seat) remains cold, heating of the side bolsters is not regulated. →
- 74 - SEATS - UPHOLSTERY, COVERS
- 74 - SEATS - UPHOLSTERY, COVERS for BODY INTERIOR - CABRIOLET
- If the Generator (GEN) C is not generating sufficient current, the heat output of the seat heating system may be reduced by the operating and display module, Climatronic Control Module J255 or the seat heating completely deactivated. If the voltage at the operating and display module, Climatronic Control Module J255 is less than approx. 12.3 V (display group "017"), the output to the seat heater elements is no longer constantly connected but rather only pulsed (although the specified temperature has not yet been attained). The seat heating system is completely deactivated if the voltage is less than approx. 10.6 V.
| Display field | Meaning | Remarks |
| 3 | Specified temperature of driver seat cushion heater element
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NOTE:
- If the thumb wheel is set to "0", the display will be -41 to -61 (-99) °C. This ensures that the seat heating will not be activated in this position even at extreme temperatures.
- If the actual temperature measured (display zone "2") is higher than the specified temperature set (display zone "3") and the specified temperature displayed is below the temperature value indicated for this thumb wheel position, ignore the display in zone "3".
- The position of the thumb wheel is determined in the operating and display module, Climatronic Control Module J255 by way of a potentiometer (variable resistor). Tolerances in this potentiometer make it impossible to determine a fixed value for the respective position. The specified temperature displayed may therefore differ from the specified temperature given in the display zone.
- Depending on the version of the operating and display module, Climatronic Control Module J255, the specified (seat cushion) temperature shown in the display zone for this thumb wheel position either switches to the given specified temperature on moving out of position "0" (-41 to -61 (-99 °C)) or the display does not switch from -41 to -61 (-99 °C) to the given specified (seat cushion) temperature until the specified temperature is higher than the actual temperature measured in the seat cushion.
| Display field | Meaning | Remarks |
|---|---|---|
| 4 | Activation for driver seat cushion heater element
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