Control parameters
The Toyota Prius Prime has 16 control parameters.
● Confirmed◆ In testing○ Supported× Not supported
Accelerator pedal PRIUSPRIME_ACCEL_PEDAL
- Request
22 10 59 - Service 22
DID 1059 - Module
700 → 708 - Every
250 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 2012 to 2022, 2024 to 2026. Not supported for 2023.
Accelerator pedal, position 1 PRIUSPRIME_ACC_PEDAL_POS_1Confirmed
- Request
22 1F 49 - Service 22
DID 1F49 - Module
7D2 → 7DA - Every
1 s - Testing for 2012 to 2022, 2024 to 2026
Example reply from a 2023 Toyota Prius Prime.
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 2023. In testing for 2012 to 2022, 2024 to 2026.
Accelerator pedal, position 2 PRIUSPRIME_ACC_PEDAL_POS_2Confirmed
- Request
22 1F 4A - Service 22
DID 1F4A - Module
7D2 → 7DA - Every
1 s - Testing for 2012 to 2022, 2024 to 2026
Example reply from a 2023 Toyota Prius Prime.
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 2023. In testing for 2012 to 2022, 2024 to 2026.
Anti-lock brake warning light PRIUSPRIME_ABS_WARN
- Request
21 3D - Service 21
PID 3D - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 0 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Brake warning light PRIUSPRIME_BRAKE_WARN
- Request
21 3D - Service 21
PID 3D - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 1 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Buzzer PRIUSPRIME_BUZZER
- Request
21 3D - Service 21
PID 3D - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 3 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Electronically controlled brake warning light PRIUSPRIME_ECB_WARN
- Request
21 3D - Service 21
PID 3D - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 6 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Key remind sound PRIUSPRIME_KEY_REMIND_SOUND
- Request
21 A1 - Service 21
PID A1 - Module
7C0 → 7C8 - Every
1 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Main idle PRIUSPRIME_MAIN_IDLE_SW
- Request
21 1D - Service 21
PID 1D - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 2 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Parking brake PRIUSPRIME_PARKING_BRAKE
- Request
21 62 - Service 21
PID 62 - Module
7D0 → 7D8 - Every
1 s - Testing
Bit 6 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Parking brake PRIUSPRIME_PARKING_BRAKE_SW
- Request
21 1F - Service 21
PID 1F - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 1 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Reservoir warning PRIUSPRIME_RESERVOIR_WARNING_SW
- Request
21 1D - Service 21
PID 1D - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 1 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Slip indicator light PRIUSPRIME_SLIP_WARN
- Request
21 3D - Service 21
PID 3D - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 2 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Steering angle PRIUSPRIME_STEERING_ANGLEConfirmed
- Request
22 10 04 - Service 22
DID 1004 - Module
7B3 → 7BB - Every
250 ms - Testing for 2012 to 2022, 2024 to 2026
Example reply from a 2023 Toyota Prius Prime.
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. In testing for 2012 to 2022, 2024 to 2026.
Steering wheel angle PRIUSPRIME_STEER_ANGLE
Positive = counter-clockwise, negative = clockwise.
- Request
21 47 - Service 21
PID 47 - Module
7B0 → 7B8 - Every
250 ms - Testing
Bits 24 to 39 of the reply, 16 bits.
- Formula
(val ÷ 10 − 3276.8)- Range
- -3276 to 3276 °
- Unit
- °
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.
Traction control, brake status PRIUSPRIME_TRC_TRAC__BRAKE_CTRL
- Request
21 5A - Service 21
PID 5A - Module
7B0 → 7B8 - Every
1 s - Testing
Bit 2 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2012 to 2022, 2024 to 2026. Not supported for 2023.