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Audi e-tron

Control parameters

The Audi e-tron has 6 control parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Brake pressure ETRON_TRON_BRAKE_PConfirmed

  • Request22 2B 21
  • Service 22DID 2B21
  • Module713 → 77D
  • Every1 s
  • Testing for 2019 to 2021, 2023 to 2026

Example reply from a 2022 Audi e-tron.

Bits 0 to 15 of the reply, 16 bits. The value is signed.

0x0000 = 0 → (0 × 152999 ÷ 10000000 − 42.503) = -42.503 bar

Formula
(val × 152999 ÷ 10000000 − 42.503)
Range
-543.8501 to 458.8288 bar
Unit
bar

Confirmed for 2022. In testing for 2019 to 2021, 2023 to 2026.

  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.

Brake pressure ETRON_TRON_BRAKE_PConfirmed

  • Request22 2B 21
  • Service 22DID 2B21
  • Module713 → 77D
  • Every1 s
  • Testing for 2019 to 2021, 2023 to 2026

Example reply from a 2022 Audi e-tron.

Bits 0 to 15 of the reply, 16 bits. The value is signed.

0x0000 = 0 → (0 × 152999 ÷ 10000000 − 42.503) = -42.503 bar

Formula
(val × 152999 ÷ 10000000 − 42.503)
Range
-543.8501 to 458.8288 bar
Unit
bar

Confirmed for 2022. In testing for 2019 to 2021, 2023 to 2026.

Parking brake, air gap - left ETRON_PARKING_BRAKE_AIR

  • Request22 00 05
  • Service 22DID 0005
  • Module752 → 7BC
  • Every250 ms
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 1000)
Range
0 to 65.53 mm
Unit
mm

In testing for 2019 to 2021, 2023 to 2026. Not supported for 2022.

Parking brake, air gap - right ETRON_PARKING_BRAKE_AIR_GAP

  • Request22 00 05
  • Service 22DID 0005
  • Module752 → 7BC
  • Every250 ms
  • Testing

Bits 16 to 31 of the reply, 16 bits.

Formula
(val ÷ 1000)
Range
0 to 65.53 mm
Unit
mm

In testing for 2019 to 2021, 2023 to 2026. Not supported for 2022.

Steering wheel angle ETRON_STEER_ANGLEConfirmed

Positive is rotated to the left, negative is rotated to the right.

  • Request22 2B 29
  • Service 22DID 2B29
  • Module713 → 77D
  • Every100 ms
  • Testing for 2023 to 2024

Example reply from a 2026 Audi e-tron.

Bits 0 to 15 of the reply, 16 bits. The value is signed.

0x0000 = 0 → (0 ÷ 1000) = 0 rad

Formula
(val ÷ 1000)
Range
-32.768 to 32.767 rad
Unit
rad

Confirmed for 2019 to 2022, 2026. In testing for 2023 to 2024.

Control › Pedals

Accelerator pedal position sensor 1 ETRON_APP_POS1Confirmed

  • Request22 20 61
  • Service 22DID 2061
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 2023 to 2024

Example reply from a 2026 Audi e-tron.

Bits 0 to 15 of the reply, 16 bits.

0x02EF = 751 → (751 ÷ 1000) = 0.751 V

Formula
(val ÷ 1000)
Range
0 to 65 V
Unit
V

Confirmed for 2019 to 2022, 2026. In testing for 2023 to 2024.

Accelerator pedal position sensor 2 ETRON_APP_POS2Confirmed

  • Request22 20 62
  • Service 22DID 2062
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 2023 to 2024

Example reply from a 2026 Audi e-tron.

Bits 0 to 15 of the reply, 16 bits.

0x0178 = 376 → (376 ÷ 1000) = 0.376 V

Formula
(val ÷ 1000)
Range
0 to 65 V
Unit
V

Confirmed for 2019 to 2022, 2026. In testing for 2023 to 2024.

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