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Subaru WRX

Control parameters

The Subaru WRX has 7 control parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Steering wheel angle (ABS) WRX_STEER_ANGLEConfirmed

  • Request22 10 29
  • Service 22DID 1029
  • Module7B0 → 7B8
  • Every250 ms
  • Testing for 1992 to 2014, 2025 to 2026

Example reply from a 2024 Subaru WRX.

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

0x0000 = 0 → 0 °

Formula
val
Range
0 to 65535 °
Unit
°

Confirmed for 2015 to 2024. In testing for 1992 to 2014, 2025 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.

Absolute throttle position TPSAE J1979Confirmed

Throttle position at idle will usually be more than 0%, and throttle position at wide open throttle will usually be less than 100%.

Pelican can show this parameter as the throttle position.

  • Request01 11
  • Service 01PID 11
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2015, 2017 to 2023. Supported for 2016, 2024.

Absolute throttle position B TP_BSAE J1979Confirmed

Pelican can show this parameter as the throttle position.

  • Request01 47
  • Service 01PID 47
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2015, 2017 to 2023.

Relative throttle position TP_RSAE J1979Confirmed

Relative or 'learned' throttle position.

  • Request01 45
  • Service 01PID 45
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2015, 2018, 2020, 2022 to 2023. Supported for 2021.

Steering wheel angle (ABS) WRX_STEER_ANGLEConfirmed

  • Request22 10 29
  • Service 22DID 1029
  • Module7B0 → 7B8
  • Every250 ms
  • Testing for 1992 to 2014, 2025 to 2026

Example reply from a 2024 Subaru WRX.

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

0x0000 = 0 → 0 °

Formula
val
Range
0 to 65535 °
Unit
°

Confirmed for 2015 to 2024. In testing for 1992 to 2014, 2025 to 2026.

Control › Pedals

Accelerator pedal position (relative) APP_RSAE J1979Confirmed

  • Request01 5A
  • Service 01PID 5A
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2015, 2018, 2020 to 2023.

Accelerator pedal position D APP_DSAE J1979Confirmed

  • Request01 49
  • Service 01PID 49
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2015, 2018, 2020 to 2023.

Accelerator pedal position E APP_ESAE J1979Confirmed

  • Request01 4A
  • Service 01PID 4A
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2015, 2018, 2020 to 2023.

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