Climate parameters
The Toyota 4Runner has 17 climate parameters.
● Confirmed◆ In testing○ Supported× Not supported
Adjusted ambient temperature 4RUNNER_ADJUSTED_AMBIENT_TConfirmed
- Request
21 3D - Service 21
PID 3D - Module
7C4 → 7CC - Every
5 s - Testing for 1988 to 2014, 2017 to 2019, 2021 to 2026
Example reply from a 2020 Toyota 4Runner.
Bits 0 to 7 of the reply, 8 bits.
0x67 = 103 → (103 × 81.6 ÷ 255 − 30.8) = 2.16 °C
- Formula
(val × 81.6 ÷ 255 − 30.8)- Range
- -30.8 to 50.8 °C
- Unit
- °C
Confirmed for 2015 to 2016, 2020. In testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Not supported for 2013, 2025.
Air inlet damper actual pulse 4RUNNER_AIR_INLET_DAMPER_ACTUAL_PULSEConfirmed
- Request
21 44 - Service 21
PID 44 - Module
7C4 - Every
1 s - Testing for 1988 to 2010, 2014, 2025 to 2026
Example reply from a 2024 Toyota 4Runner.
Bits 8 to 15 of the reply, 8 bits.
0x1C = 28 → 28
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2011 to 2013, 2015 to 2024. In testing for 1988 to 2003, 2005 to 2010, 2014. Not supported for 2004, 2025 to 2026.
Air inlet damper target pulse 4RUNNER_AIR_INLET_DAMPER_TARGET_PULSEConfirmed
- Request
21 44 - Service 21
PID 44 - Module
7C4 - Every
1 s - Testing for 1988 to 2010, 2014, 2025 to 2026
Example reply from a 2024 Toyota 4Runner.
Bits 0 to 7 of the reply, 8 bits.
0x1C = 28 → 28
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2011 to 2013, 2015 to 2024. In testing for 1988 to 2003, 2005 to 2010, 2014. Not supported for 2004, 2025 to 2026.
Air outlet servo actual pulse, driver 4RUNNER_AIR_OUTLET_SERVO_ACTU_PULSE_DConfirmed
- Request
21 43 - Service 21
PID 43 - Module
7C4 - Every
1 s - Testing for 1988 to 2010, 2014, 2025 to 2026
Example reply from a 2024 Toyota 4Runner.
Bits 8 to 15 of the reply, 8 bits.
0x29 = 41 → 41
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2011 to 2013, 2015 to 2024. In testing for 1988 to 2003, 2005 to 2010, 2014. Not supported for 2004, 2025 to 2026.
Air outlet servo pulse, driver 4RUNNER_AIR_OUTLET_SERVO_PULSE_DConfirmed
- Request
21 43 - Service 21
PID 43 - Module
7C4 - Every
1 s - Testing for 1988 to 2010, 2014, 2025 to 2026
Example reply from a 2024 Toyota 4Runner.
Bits 0 to 7 of the reply, 8 bits.
0x29 = 41 → 41
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2011 to 2013, 2015 to 2024. In testing for 1988 to 2003, 2005 to 2010, 2014. Not supported for 2004, 2025 to 2026.
Ambient air temperature 4RUNNER_AAT_7C4Confirmed
- Request
21 22 - Service 21
PID 22 - Module
7C4 → 7CC - Every
5 s - Testing for 1988 to 2014, 2017 to 2019, 2021 to 2026
Example reply from a 2020 Toyota 4Runner.
Bits 0 to 7 of the reply, 8 bits.
0x4D = 77 → (77 × 89.25 ÷ 255 − 23.3) = 3.65 °C
- Formula
(val × 89.25 ÷ 255 − 23.3)- Range
- -23.3 to 65.95 °C
- Unit
- °C
Confirmed for 2015 to 2016, 2020. In testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Not supported for 2013, 2025.
Ambient air temperature AATSAE J1979Confirmed
- Request
01 46 - Service 01
PID 46 - Module
7E0 → 7E8 - Every
15 s
Bits 0 to 7 of the reply, 8 bits.
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2010, 2020 to 2021, 2023 to 2024. Supported for 2025 to 2026.
Ambient temperature 4RUNNER_AMBIENT_TConfirmed
- Request
22 1F 46 - Service 22
DID 1F46 - Module
700 → 708 - Every
5 s - Testing for 2026
Example reply from a 2025 Toyota 4Runner.
Bits 0 to 7 of the reply, 8 bits.
0x49 = 73 → (73 − 40) = 33 °C
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2025. In testing for 2026. Not supported for 2011, 2013, 2016 to 2017, 2020, 2023.
Blower motor speed level 4RUNNER_BLOWER_MOTOR_SPEED_LEVELConfirmed
- Request
21 3C - Service 21
PID 3C - Module
7C4 → 7CC - Every
5 s - Testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2026
Example reply from a 2020 Toyota 4Runner.
Bits 0 to 7 of the reply, 8 bits.
0x1F = 31 → 31
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2015 to 2016, 2020. In testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Supported for 2013. Not supported for 2025.
Cabin temperature 4RUNNER_CABIN_T
- Request
21 21 - Service 21
PID 21 - Module
7C4 → 7CC - Every
5 s - Testing for 1988 to 2012, 2014 to 2026
Bits 0 to 7 of the reply, 8 bits.
- Formula
(val × 63.75 ÷ 255 − 6.5)- Range
- -6.5 to 57.25 °C
- Unit
- °C
In testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Supported for 2013. Not supported for 2015 to 2016, 2020, 2025.
Communication with air conditioner 4RUNNER_COMM_WITH_AIR_CONDITIONERConfirmed
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
5 s - Testing for 1988 to 2012, 2014, 2017 to 2026
Example reply from a 2016 Toyota 4Runner.
Bit 5 of the reply.
0b0 = 0 → 0
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
Confirmed for 2013, 2015 to 2016. In testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Not supported for 2020, 2025.
Communication with HV 4RUNNER_COMMUNICATION_WITH_HVConfirmed
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
5 s - Testing for 1988 to 2012, 2014, 2017 to 2026
Example reply from a 2016 Toyota 4Runner.
Bit 2 of the reply.
0b0 = 0 → 0
- Formula
val- Range
- 0 to 1
- Unit
- Off or on
Confirmed for 2013, 2015 to 2016. In testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Not supported for 2020, 2025.
Communication with valvematic 4RUNNER_COMM_WITH_VALVEMATIC_COMMConfirmed
- Request
21 24 - Service 21
PID 24 - Module
7E0 → 7E8 - Every
5 s - Testing for 1988 to 2012, 2014, 2017 to 2026
Example reply from a 2016 Toyota 4Runner.
Bit 6 of the reply.
0b0 = 0 → 0
- Formula
val- Range
- 0 to 1
- Unit
- Number
Confirmed for 2013, 2015 to 2016. In testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Not supported for 2020, 2025.
Evaporator fin thermistor 4RUNNER_EVAP_FIN_THERMISTORConfirmed
- Request
21 4B - Service 21
PID 4B - Module
7C4 → 7CC - Every
5 s - Testing for 1988 to 2014, 2017 to 2019, 2021 to 2026
Example reply from a 2020 Toyota 4Runner.
Bits 0 to 7 of the reply, 8 bits.
0x80 = 128 → (128 × 89.25 ÷ 255 − 29.7) = 15.1 °C
- Formula
(val × 89.25 ÷ 255 − 29.7)- Range
- -29.7 to 59.55 °C
- Unit
- °C
Confirmed for 2015 to 2016, 2020. In testing for 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Not supported for 2013, 2025.
Evaporator target temperature 4RUNNER_EVAP_TARGET_TConfirmed
- Request
21 4C - Service 21
PID 4C - Module
7C4 - Every
1 s - Testing for 1988 to 2010, 2014, 2025 to 2026
Example reply from a 2024 Toyota 4Runner.
Bits 0 to 15 of the reply, 16 bits.
0x8096 = 32918 → (32918 ÷ 100 − 327.68) = 1.5
- Formula
(val ÷ 100 − 327.68)- Range
- -327.68 to 327.67
- Unit
- Number
Confirmed for 2011 to 2013, 2015 to 2024. In testing for 1988 to 2003, 2005 to 2010, 2014. Not supported for 2004, 2025 to 2026.
Set temperature, driver side 4RUNNER_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 1988 to 2012, 2014, 2017 to 2019, 2021 to 2024, 2026. Not supported for 2013, 2015 to 2016, 2020, 2025.
Solar sensor, driver side 4RUNNER_SOLAR_DRIVER
- Request
21 24 - Service 21
PID 24 - Module
7C4 → 7CC - Every
1 s - Testing for 1988 to 2012, 2014 to 2026
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 1988 to 2012, 2014, 2018 to 2019, 2021 to 2022, 2024, 2026. Supported for 2013. Not supported for 2015 to 2017, 2020, 2023, 2025.
