Climate parameters
The Toyota Hilux has 18 climate parameters.
● Confirmed◆ In testing○ Supported× Not supported
Adjusted ambient temperature HILUX_ADJUSTED_AMBIENT_TConfirmed
- Request
21 3D - Service 21
PID 3D - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023, 2025 to 2026
Example reply from a 2024 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0xA1 = 161 → (161 × 81.6 ÷ 255 − 30.8) = 20.72 °C
- Formula
(val × 81.6 ÷ 255 − 30.8)- Range
- -30.8 to 50.8 °C
- Unit
- °C
Confirmed for 2022, 2024. In testing for 1988 to 2021, 2023, 2025 to 2026.
Air conditioner feedback HILUX_AC_FB
- Request
21 51 - Service 21
PID 51 - Module
7E0 → 7E8 - Every
1 s - Testing for 1988 to 2017, 2019 to 2026
Bits 216 to 231 of the reply, 16 bits.
- Formula
(val × 10 ÷ 8192 − 40)- Range
- -40 to 39.99
- Unit
- Number
In testing for 1988 to 2012, 2014 to 2017, 2019 to 2020, 2023, 2025 to 2026. Supported for 2018. Not supported for 2013, 2021 to 2022, 2024.
Air inlet damper actual pulse HILUX_AIR_INLET_DAMPER_ACTUAL_PULSEConfirmed
- Request
21 44 - Service 21
PID 44 - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023 to 2026
Example reply from a 2022 Toyota Hilux.
Bits 8 to 15 of the reply, 8 bits.
0x82 = 130 → 130
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2022. In testing for 1988 to 2021, 2023 to 2026.
Air inlet damper target pulse HILUX_AIR_INLET_DAMPER_TARGET_PULSEConfirmed
- Request
21 44 - Service 21
PID 44 - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023 to 2026
Example reply from a 2022 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0x82 = 130 → 130
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2022. In testing for 1988 to 2021, 2023 to 2026.
Air outlet servo actu pulse, driver HILUX_AIR_OUTLET_SERVO_ACTU_PULSE_DConfirmed
- Request
21 43 - Service 21
PID 43 - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023, 2025 to 2026
Example reply from a 2024 Toyota Hilux.
Bits 8 to 15 of the reply, 8 bits.
0x80 = 128 → 128
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2022, 2024. In testing for 1988 to 2021, 2023, 2026. Not supported for 2025.
Air outlet servo pulse, driver HILUX_AIR_OUTLET_SERVO_PULSE_DConfirmed
- Request
21 43 - Service 21
PID 43 - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023, 2025 to 2026
Example reply from a 2024 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0x80 = 128 → 128
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2022, 2024. In testing for 1988 to 2021, 2023, 2026. Not supported for 2025.
Ambient air temperature HILUX_AATConfirmed
- Request
21 22 - Service 21
PID 22 - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023, 2025 to 2026
Example reply from a 2024 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0x7F = 127 → (127 × 89.25 ÷ 255 − 23.3) = 21.15 °C
- Formula
(val × 89.25 ÷ 255 − 23.3)- Range
- -23.3 to 65.95 °C
- Unit
- °C
Confirmed for 2022, 2024. In testing for 1988 to 2021, 2023, 2026. Not supported for 2025.
Ambient temperature HILUX_AMBIENT_T_700Confirmed
- Request
22 1F 46 - Service 22
DID 1F46 - Module
700 → 708 - Every
5 s - Testing for 1988 to 2021, 2023 to 2026
Example reply from a 2022 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0x3A = 58 → (58 − 40) = 18 °C
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2022. In testing for 1988 to 2021, 2023 to 2026.
Ambient temperature for A/C HILUX_AC_AMB_TConfirmed
- Request
21 51 - Service 21
PID 51 - Module
7E0 → 7E8 - Every
1 s - Testing for 1988 to 2017, 2019 to 2026
Example reply from a 2018 Toyota Hilux.
Bits 88 to 95 of the reply, 8 bits.
0x00 = 0 → (0 − 40) = -40 °C
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2018. In testing for 1988 to 2012, 2014 to 2017, 2019 to 2020, 2023, 2025 to 2026. Not supported for 2013, 2021 to 2022, 2024.
Blower motor speed level HILUX_BLOWER_MOTOR_SPEED_LEVELConfirmed
- Request
21 3C - Service 21
PID 3C - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023, 2025 to 2026
Example reply from a 2024 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0x03 = 3 → 3
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2022, 2024. In testing for 1988 to 2021, 2023, 2025 to 2026.
Cabin temperature HILUX_CABIN_TConfirmed
- Request
21 21 - Service 21
PID 21 - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023, 2025 to 2026
Example reply from a 2024 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0x7B = 123 → (123 × 63.75 ÷ 255 − 6.5) = 24.25 °C
- Formula
(val × 63.75 ÷ 255 − 6.5)- Range
- -6.5 to 57.25 °C
- Unit
- °C
Confirmed for 2022, 2024. In testing for 1988 to 2021, 2023, 2025 to 2026.
Communication with air conditioner HILUX_COMM_WITH_AIR_CONDITIONER
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
1 s - Testing
Bit 5 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 1988 to 2021, 2023, 2025 to 2026. Not supported for 2022, 2024.
Communication with brake HILUX_COMMUNICATION_WITH_BRAKE
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
1 s - Testing
Bit 4 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 1988 to 2021, 2023, 2025 to 2026. Not supported for 2022, 2024.
Communication with HV HILUX_COMMUNICATION_WITH_HV
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
1 s - Testing
Bit 2 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
In testing for 1988 to 2021, 2023, 2025 to 2026. Not supported for 2022, 2024.
Communication with valvematic HILUX_COMM_WITH_VALVEMATIC_COMM
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
1 s - Testing
Bit 6 of the reply.
- Formula
val- Range
- 0 to 1
- Unit
- Number
In testing for 1988 to 2021, 2023, 2025 to 2026. Not supported for 2022, 2024.
Evaporator fin thermistor HILUX_EVAP_FIN_THERMISTORConfirmed
- Request
21 4B - Service 21
PID 4B - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023, 2025 to 2026
Example reply from a 2024 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0x5E = 94 → (94 × 89.25 ÷ 255 − 29.7) = 3.2 °C
- Formula
(val × 89.25 ÷ 255 − 29.7)- Range
- -29.7 to 59.55 °C
- Unit
- °C
Confirmed for 2022, 2024. In testing for 1988 to 2021, 2023, 2025 to 2026.
Set temperature, driver side HILUX_T_DRIVER
- Request
21 29 - Service 21
PID 29 - Module
7C4 → 7CC - Every
1 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255 °C
- Unit
- °C
In testing for 1988 to 2021, 2023, 2025 to 2026. Not supported for 2022, 2024.
Solar sensor, driver side HILUX_SOLAR_DRIVERConfirmed
- Request
21 24 - Service 21
PID 24 - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2021, 2023, 2025 to 2026
Example reply from a 2024 Toyota Hilux.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2022, 2024. In testing for 1988 to 2021, 2023, 2025 to 2026.
