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Audi A4

Climate parameters

The Audi A4 has 3 climate parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Ambient air temperature AATConfirmed

  • Request01 46
  • Service 01PID 46
  • Module7E0 → 7E8
  • Every15 s

Bits 0 to 7 of the reply, 8 bits.

Formula
(val − 40)
Range
-40 to 215 °C
Unit
°C

Confirmed for 2009, 2011, 2017 to 2019, 2021 to 2024. Supported for 1998, 2008, 2012 to 2014, 2016, 2020.

  1. The parameter's name and its ID in the OBDb. Confirmed shows when a response from a real car confirms the parameter.
  2. The clutch mark shows a Connectable, a parameter that Pelican surfaces in its interface.
  3. The service and PID/DID asked for, the control module it's sent to, and how often Pelican asks.
  4. The reply's bytes. The parameter's bytes are blue. Bytes for other parameters in the same reply are grayed out. Hover over a byte to see the parameter it represents.
  5. Where the parameter is in the response, and how Pelican converts the raw value into a value.
  6. A real reply, decoded. The raw value comes first, then the reading.
  7. Which model years have tested this parameter.

Ambient air temperature AATSAE J1979Confirmed

  • Request01 46
  • Service 01PID 46
  • Module7E0 → 7E8
  • Every15 s

Bits 0 to 7 of the reply, 8 bits.

Formula
(val − 40)
Range
-40 to 215 °C
Unit
°C

Confirmed for 2009, 2011, 2017 to 2019, 2021 to 2024. Supported for 1998, 2008, 2012 to 2014, 2016, 2020.

Interior air temperature A4_IAT

  • Request22 26 13
  • Service 22DID 2613
  • Module714
  • Every30 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 10)
Range
0 to 255 °C
Unit
°C

In testing for 1994 to 1997, 2000 to 2005, 2007, 2010, 2015, 2025. Not supported for 1998 to 1999, 2006, 2008 to 2009, 2011 to 2014, 2016 to 2024.

Windshield temperature A4_WNDSHLD_TEMP

  • Request22 27 C4
  • Service 22DID 27C4
  • Module746
  • Every30 s
  • Testing

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 0.576 − 38.8)
Range
-38.8 to 108.08 °C
Unit
°C

In testing for 1994 to 1997, 2000 to 2005, 2007, 2010, 2015, 2025. Not supported for 1998 to 1999, 2006, 2008 to 2009, 2011 to 2014, 2016 to 2024.

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