Climate parameters
The Toyota C-HR+ has 16 climate parameters.
● Confirmed◆ In testing○ Supported× Not supported
Adjusted ambient temperature CHR_ADJUSTED_AMBIENT_TConfirmed
- Request
21 3D - Service 21
PID 3D - Module
7C4 → 7CC - Every
5 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x5A = 90 → (90 × 81.6 ÷ 255 − 30.8) = -2 °C
- Formula
(val × 81.6 ÷ 255 − 30.8)- Range
- -30.8 to 50.8 °C
- Unit
- °C
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Air inlet damper actual pulse CHR_AIR_INLET_DAMPER_ACTUAL_PULSEConfirmed
- Request
21 44 - Service 21
PID 44 - Module
7C4 → 7CC - Every
1 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 8 to 15 of the reply, 8 bits.
0x5C = 92 → 92
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Air inlet damper target pulse CHR_AIR_INLET_DAMPER_TARGET_PULSEConfirmed
- Request
21 44 - Service 21
PID 44 - Module
7C4 → 7CC - Every
1 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x5C = 92 → 92
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Air outlet servo actual pulse, driver CHR_AIR_OUTLET_SERVO_ACTU_PULSE_DConfirmed
- Request
21 43 - Service 21
PID 43 - Module
7C4 → 7CC - Every
1 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 8 to 15 of the reply, 8 bits.
0x80 = 128 → 128
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Air outlet servo pulse, driver CHR_AIR_OUTLET_SERVO_PULSE_DConfirmed
- Request
21 43 - Service 21
PID 43 - Module
7C4 → 7CC - Every
1 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x80 = 128 → 128
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Ambient air temperature CHR_AAT_7C4Confirmed
- Request
21 22 - Service 21
PID 22 - Module
7C4 → 7CC - Every
5 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x3C = 60 → (60 × 89.25 ÷ 255 − 23.3) = -2.3 °C
- Formula
(val × 89.25 ÷ 255 − 23.3)- Range
- -23.3 to 65.95 °C
- Unit
- °C
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Ambient temperature CHR_AMBIENT_TConfirmed
- Request
22 1F 46 - Service 22
DID 1F46 - Module
700 → 708 - Every
5 s - Testing for 2016 to 2023, 2025 to 2026
Example reply from a 2024 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x3F = 63 → (63 − 40) = 23 °C
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2024. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2019.
Blower motor speed level CHR_BLOWER_MOTOR_SPEED_LEVELConfirmed
- Request
21 3C - Service 21
PID 3C - Module
7C4 → 7CC - Every
5 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Cabin temperature CHR_CABIN_TConfirmed
- Request
21 21 - Service 21
PID 21 - Module
7C4 → 7CC - Every
5 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x4D = 77 → (77 × 63.75 ÷ 255 − 6.5) = 12.75 °C
- Formula
(val × 63.75 ÷ 255 − 6.5)- Range
- -6.5 to 57.25 °C
- Unit
- °C
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Communication with air conditioner CHR_COMM_WITH_AIR_CONDITIONER
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
5 s - Testing
Bit 5 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2019, 2024.
Communication with HV CHR_COMMUNICATION_WITH_HV
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
5 s - Testing
Bit 2 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2019, 2024.
Communication with valvematic CHR_COMM_WITH_VALVEMATIC_COMM
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
5 s - Testing
Bit 6 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Number
In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2019, 2024.
Evaporator fin thermistor CHR_EVAP_FIN_THERMISTORConfirmed
- Request
21 4B - Service 21
PID 4B - Module
7C4 → 7CC - Every
5 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x51 = 81 → (81 × 89.25 ÷ 255 − 29.7) = -1.35 °C
- Formula
(val × 89.25 ÷ 255 − 29.7)- Range
- -29.7 to 59.55 °C
- Unit
- °C
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Evaporator target temperature CHR_EVAP_TARGET_TConfirmed
- Request
21 4C - Service 21
PID 4C - Module
7C4 → 7CC - Every
1 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 15 of the reply, 16 bits.
0x8064 = 32868 → (32868 ÷ 100 − 327.68) = 1
- Formula
(val ÷ 100 − 327.68)- Range
- -327.68 to 327.67
- Unit
- Number
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
Set temperature, driver side CHR_T_DRIVER
- Request
21 29 - Service 21
PID 29 - Module
7C4 → 7CC - Every
5 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255 °C
- Unit
- °C
In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2019, 2024.
Solar sensor, driver side CHR_SOLAR_DRIVERConfirmed
- Request
21 24 - Service 21
PID 24 - Module
7C4 → 7CC - Every
1 s - Testing for 2016 to 2018, 2020 to 2026
Example reply from a 2019 Toyota C-HR+.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2019. In testing for 2016 to 2018, 2020 to 2023, 2025 to 2026. Not supported for 2024.
