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Jeep Grand Cherokee

Control parameters

The Jeep Grand Cherokee has 10 control parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Brake booster pressure GRANDCHEROKEE_BRAKE_BOOSTER_PConfirmed

  • Request22 09 44
  • Service 22DID 0944
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

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

0x1379 = 4985 → (4985 ÷ 100) = 49.85 kPa

Formula
(val ÷ 100)
Range
-327.68 to 327.67 kPa
Unit
kPa

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

  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 2011, 2014 to 2025. Supported for 2005 to 2006, 2008 to 2009, 2012 to 2013.

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 2011, 2014 to 2017, 2019 to 2023, 2025. Supported for 2024.

Brake booster pressure GRANDCHEROKEE_BRAKE_BOOSTER_PConfirmed

  • Request22 09 44
  • Service 22DID 0944
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

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

0x1379 = 4985 → (4985 ÷ 100) = 49.85 kPa

Formula
(val ÷ 100)
Range
-327.68 to 327.67 kPa
Unit
kPa

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

High beam mode GRANDCHEROKEE_HIGHBEAMS_MODEConfirmed

  • Request22 03 2D
  • Service 22DID 032D
  • Module763 → 4E3
  • Every250 ms
  • Testing for 1993 to 2013, 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 4 to 7 of the reply, 4 bits.

0b0000 = 0 → OFF

Unit
Named states
States
Raw valueStateMeaning
0OFFOff
1ONOn
2HELDHeld

Confirmed for 2016, 2021. In testing for 1993 to 2013, 2015, 2017 to 2020, 2022, 2024 to 2026. Supported for 2014. Not supported for 2023.

High beams GRANDCHEROKEE_HIGHBEAMS_ONConfirmed

  • Request22 03 2D
  • Service 22DID 032D
  • Module763 → 4E3
  • Every250 ms
  • Testing for 1993 to 2013, 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bit 3 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2014, 2016, 2021. In testing for 1993 to 2013, 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Rear wiper GRANDCHEROKEE_REAR_WIPERConfirmed

  • Request22 03 2D
  • Service 22DID 032D
  • Module763 → 4E3
  • Every250 ms
  • Testing for 1993 to 2013, 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 12 to 15 of the reply, 4 bits.

0b0000 = 0 → OFF

Unit
Named states
States
Raw valueStateMeaning
0OFFOff
1SPRAYSpray
2AUTOAuto
4ONOn

Confirmed for 2014, 2016, 2021. In testing for 1993 to 2013, 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 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 2014, 2016, 2019 to 2021, 2023. Supported for 2006, 2009, 2012, 2015, 2018, 2022, 2024 to 2025.

Steering wheel angle GRANDCHEROKEE_STEER_ANGLEConfirmed

  • Request22 08 85
  • Service 22DID 0885
  • ModuleDA30 → 30
  • Every100 ms
  • Testing for 1993 to 2020, 2026

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 10 − 720)
Range
-720 to 720 °
Unit
°

Confirmed for 2021 to 2025. In testing for 2020, 2026.

Control › Pedals

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 2014 to 2016, 2018 to 2021, 2023. Supported for 2012, 2017, 2022, 2024 to 2025.

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 2014 to 2016, 2018 to 2021, 2023. Supported for 2012, 2017, 2022, 2024 to 2025.

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