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Toyota Prius

Control parameters

The Toyota Prius has 54 control parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Accelerator pedal position PRIUS_APPConfirmed

  • Request21 C4
  • Service 21PID C4
  • Module7E2 → 7EA
  • Every250 ms
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bits 16 to 23 of the reply, 8 bits.

0x60 = 96 → (96 × 0.392) = 37.632 %

Formula
(val × 0.392)
Range
0 to 99.96 %
Unit
%

Confirmed for 2009. In testing for 2004 to 2008.

  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.

A/C compressor PRIUS_A_C_COMPRESSOR

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 64 of the reply.

Formula
val
Range
0 to 1
Unit
Off or on

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

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 2008, 2010, 2012, 2014, 2024. Supported for 2005, 2007, 2009, 2011, 2013, 2015 to 2017, 2019 to 2023, 2025 to 2026.

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 2008, 2010, 2012. Supported for 2009, 2016 to 2017, 2023 to 2026.

Accelerator pedal PRIUS_ACCEL_PEDAL

  • Request22 10 59
  • Service 22DID 1059
  • Module700 → 708
  • Every250 ms
  • Testing

Bits 0 to 7 of the reply, 8 bits.

Formula
(val ÷ 1.42 − 28.873)
Range
0 to 100 %
Unit
%

In testing for 1997 to 2004, 2006, 2015, 2017 to 2018, 2020 to 2021, 2023, 2026. Not supported for 2005, 2007 to 2014, 2016, 2019, 2022, 2024 to 2025.

Accelerator pedal position PRIUS_APPConfirmed

  • Request21 C4
  • Service 21PID C4
  • Module7E2 → 7EA
  • Every250 ms
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bits 16 to 23 of the reply, 8 bits.

0x60 = 96 → (96 × 0.392) = 37.632 %

Formula
(val × 0.392)
Range
0 to 99.96 %
Unit
%

Confirmed for 2009. In testing for 2004 to 2008.

Accelerator pedal, position 1 PRIUS_ACC_PEDAL_POS_1Confirmed

  • Request22 1F 49
  • Service 22DID 1F49
  • Module7D2 → 7DA
  • Every1 s
  • Testing for 2018 to 2019

Example reply from a 2026 Toyota Prius.

Bits 0 to 7 of the reply, 8 bits.

0x28 = 40 → (40 × 100 ÷ 255) = 15.686275 %

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

Confirmed for 2016 to 2017, 2020 to 2026. In testing for 2018 to 2019. Not supported for 2001, 2005, 2008 to 2015.

Accelerator pedal, position 2 PRIUS_ACC_PEDAL_POS_2Confirmed

  • Request22 1F 4A
  • Service 22DID 1F4A
  • Module7D2 → 7DA
  • Every1 s
  • Testing for 2018 to 2019

Example reply from a 2026 Toyota Prius.

Bits 0 to 7 of the reply, 8 bits.

0x51 = 81 → (81 × 100 ÷ 255) = 31.764706 %

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

Confirmed for 2016 to 2017, 2020 to 2026. In testing for 2018 to 2019. Not supported for 2001, 2005, 2008 to 2015.

Anti-lock brake warning light PRIUS_ABS_WARNConfirmed

  • Request21 3D
  • Service 21PID 3D
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 0 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

Brake warning light PRIUS_BRAKE_WARNConfirmed

  • Request21 3D
  • Service 21PID 3D
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 1 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

Buzzer PRIUS_BUZZERConfirmed

  • Request21 3D
  • Service 21PID 3D
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 3 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

Communication with brake PRIUS_COMMUNICATION_WITH_BRAKEConfirmed

  • Request21 24
  • Service 21PID 24
  • Module7E0 → 7E8
  • Every5 s
  • Testing for 1997 to 2008, 2010 to 2026

Example reply from a 2009 Toyota Prius.

Bit 4 of the reply.

0b1 = 1 → 1

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2013, 2016, 2024 to 2025.

Cruise control active PRIUS_CRUISEConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 17 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Cruise control cancel switch PRIUS_CANCELConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 26 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Cruise control indicator PRIUS_CRUISE_INDConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 18 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Cruise control live brake cancel PRIUS_CRUISE_CONTROL_LIVE_BRAKE_CANCEL_SWITCH

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 6 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Cruise control main switch PRIUS_CRUISE_MAINConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 23 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Cruise control ready PRIUS_CRUISE_READYConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 21 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Cruise control resume switch PRIUS_RES_ACCConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 28 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Cruise control set speed PRIUS_CRUISE_SPDConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bits 0 to 7 of the reply, 8 bits.

0x12 = 18 → 18 km/h

Formula
val
Range
0 to 255 km/h
Unit
km/h

Confirmed for 2009. In testing for 2004 to 2008.

Cruise control set switch PRIUS_SET_COASTConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 27 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Cruise control throttle opening PRIUS_CRUISE_THROTTLEConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bits 8 to 15 of the reply, 8 bits.

0x00 = 0 → (0 × 0.3922) = 0 %

Formula
(val × 0.3922)
Range
0 to 100 %
Unit
%

Confirmed for 2009. In testing for 2004 to 2008.

Electrical load signal 1 PRIUS_ELECTRICAL_LOAD_SIGNAL_1

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 16 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Electrical load signal 2 PRIUS_ELECTRICAL_LOAD_SIGNAL_2

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 17 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Electronically controlled brake warning light PRIUS_ECB_WARNConfirmed

  • Request21 3D
  • Service 21PID 3D
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 6 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

Ignition trigger count PRIUS_IGNITION_TRIG_CNT

  • Request21 45
  • Service 21PID 45
  • Module7E0 → 7E8
  • Every1 s
  • Testing for 1997 to 2008, 2010 to 2026

Bits 64 to 79 of the reply, 16 bits.

Formula
val
Range
0 to 65535
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Supported for 2009. Not supported for 2013, 2016, 2024 to 2025.

Key remind sound PRIUS_KEY_REMIND_SOUNDConfirmed

  • Request21 A1
  • Service 21PID A1
  • Module7C0 → 7C8
  • Every1 s
  • Testing for 1997 to 2012, 2014 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bits 0 to 7 of the reply, 8 bits.

0x08 = 8 → 8

Formula
val
Range
0 to 255
Unit
Number

Confirmed for 2013, 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2024 to 2025.

Main idle PRIUS_MAIN_IDLE_SWConfirmed

  • Request21 1D
  • Service 21PID 1D
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 2 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

Master cylinder torque PRIUS_MC_TQConfirmed

  • Request21 C3
  • Service 21PID C3
  • Module7E2 → 7EA
  • Every250 ms
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bits 136 to 143 of the reply, 8 bits.

0x80 = 128 → (128 × 4 − 512) = 0 N·m

Formula
(val × 4 − 512)
Range
-512 to 508 N·m
Unit
N·m

Confirmed for 2009. In testing for 2004 to 2008.

Neutral position PRIUS_NEUTRAL_POSITION_SW_SIGNAL

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 53 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Parking brake PRIUS_PARKING_BRAKEConfirmed

  • Request21 62
  • Service 21PID 62
  • Module7D0 → 7D8
  • Every1 s
  • Testing for 1997 to 2011, 2015, 2018 to 2019, 2023 to 2026

Example reply from a 2022 Toyota Prius.

Bit 6 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2012 to 2014, 2016 to 2017, 2020 to 2022. In testing for 1997 to 2000, 2002 to 2004, 2006, 2018. Not supported for 2001, 2005, 2007 to 2011, 2015, 2019, 2023 to 2026.

Parking brake PRIUS_PARKING_BRAKE_SWConfirmed

  • Request21 1F
  • Service 21PID 1F
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 1 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

Pattern switch PRIUS_PATTERN_SWITCH_PWR_M

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 42 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Power steering PRIUS_POWER_STEERING_SIGNAL

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 4 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Regenerative brake torque PRIUS_REGEN_TQConfirmed

  • Request21 C3
  • Service 21PID C3
  • Module7E2 → 7EA
  • Every250 ms
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bits 32 to 39 of the reply, 8 bits.

0x00 = 0 → (0 × 4) = 0 N·m

Formula
(val × 4)
Range
0 to 1020 N·m
Unit
N·m

Confirmed for 2009. In testing for 2004 to 2008.

Regenerative brake torque requested PRIUS_REGEN_TQ_REQConfirmed

  • Request21 C3
  • Service 21PID C3
  • Module7E2 → 7EA
  • Every250 ms
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bits 40 to 47 of the reply, 8 bits.

0x00 = 0 → (0 × 4) = 0 N·m

Formula
(val × 4)
Range
0 to 1020 N·m
Unit
N·m

Confirmed for 2009. In testing for 2004 to 2008.

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 2012. Supported for 2005, 2007 to 2009, 2011, 2014, 2016 to 2017, 2019 to 2026.

Reservoir warning PRIUS_RESERVOIR_WARNING_SWConfirmed

  • Request21 1D
  • Service 21PID 1D
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 1 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

Shift SW status, drive PRIUS_SHIFT_SW_STATUS_D_RANGE

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 27 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Shift SW status, neutral PRIUS_SHIFT_SW_STATUS_N_RANGE

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 26 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Shift SW status, parking PRIUS_SHIFT_SW_STATUS_P_RANGE

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 24 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Shift SW status, reverse PRIUS_SHIFT_SW_STATUS_R_RANGE

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 25 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Slip indicator light PRIUS_SLIP_WARNConfirmed

  • Request21 3D
  • Service 21PID 3D
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 2 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

Sports mode selection PRIUS_SPORTS_MODE_SELECTION_SW

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 32 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Sports shift down PRIUS_SPORTS_SHIFT_DOWN_SW

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 34 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Sports shift up PRIUS_SPORTS_SHIFT_UP_SW

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 33 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Starter control PRIUS_STARTER_CONTROL

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 12 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Starter signal PRIUS_STARTER_SIGNAL

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 11 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Steering angle PRIUS_STEERING_ANGLEConfirmed

  • Request22 10 04
  • Service 22DID 1004
  • Module7B3 → 7BB
  • Every250 ms
  • Testing for 1997 to 2022

Example reply from a 2026 Toyota Prius.

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

0x0000 = 0 → (0 × 1.5) = 0 °

Formula
(val × 1.5)
Range
-410 to 410 °
Unit
°

Confirmed for 2023 to 2026. In testing for 1997 to 2000, 2002 to 2004, 2006, 2018. Not supported for 2001, 2005, 2007 to 2017, 2019 to 2022.

Steering wheel angle PRIUS_STEER_ANGLEConfirmed

Positive = counter-clockwise, negative = clockwise.

  • Request21 47
  • Service 21PID 47
  • Module7B0 → 7B8
  • Every250 ms
  • Testing for 1997 to 2009, 2018, 2023 to 2026

Example reply from a 2022 Toyota Prius.

Bits 24 to 39 of the reply, 16 bits.

0x7FF8 = 32760 → (32760 ÷ 10 − 3276.8) = -0.8 °

Formula
(val ÷ 10 − 3276.8)
Range
-3276 to 3276 °
Unit
°

Confirmed for 2010 to 2017, 2019 to 2022. In testing for 1997 to 2000, 2002 to 2004, 2006, 2018. Not supported for 2001, 2005, 2007 to 2009, 2023 to 2026.

Stop light switch 1, main processor PRIUS_STOP_SW1_MAINConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 29 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Stop light switch 1, sub processor PRIUS_STOP_SW1_SUBConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 31 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

Stop light switch 2, sub processor PRIUS_STOP_SW2_SUBConfirmed

  • Request21 D3
  • Service 21PID D3
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1997 to 2008

Example reply from a 2009 Toyota Prius.

Bit 30 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2009. In testing for 2004 to 2008.

TC PRIUS_TC_TERMINAL

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 61 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016, 2024 to 2025.

Traction control, brake status PRIUS_TRC_TRAC__BRAKE_CTRLConfirmed

  • Request21 5A
  • Service 21PID 5A
  • Module7B0 → 7B8
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Toyota Prius.

Bit 2 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2016. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2024 to 2025.

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Keyboard shortcuts

jk/↓↑
Move down or up through a list or a grid.
hl/←→
Move across a row or between cards.
Enter
Open the focused link.
f
Open the current focus area's filter.
↓
In a filter, move to the first result.
Esc
Close a filter or a dialog.
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Show these shortcuts.