Climate parameters
The Toyota Tacoma has 18 climate parameters.
● Confirmed◆ In testing○ Supported× Not supported
Adjusted ambient temperature TACOMA_ADJUSTED_AMBIENT_TConfirmed
- Request
21 3D - Service 21
PID 3D - Module
7C4 → 7CC - Every
1 s - Testing for 1995 to 2015, 2024 to 2026
Example reply from a 2023 Toyota Tacoma.
Bits 0 to 7 of the reply, 8 bits.
0x6D = 109 → (109 × 81.6 ÷ 255 − 30.8) = 4.08 °C
- Formula
(val × 81.6 ÷ 255 − 30.8)- Range
- -30.8 to 50.8 °C
- Unit
- °C
Confirmed for 2016 to 2023. In testing for 1995 to 2005, 2009, 2015. Not supported for 2006 to 2008, 2010 to 2014, 2024 to 2026.
Air conditioner feedback TACOMA_AC_FBConfirmed
- Request
21 51 - Service 21
PID 51 - Module
7E0 → 7E8 - Every
1 s - Testing for 1995 to 2011, 2015 to 2016, 2018 to 2026
Example reply from a 2017 Toyota Tacoma.
Bits 216 to 231 of the reply, 16 bits.
0x8000 = 32768 → (32768 × 10 ÷ 8192 − 40) = 0
- Formula
(val × 10 ÷ 8192 − 40)- Range
- -40 to 39.99
- Unit
- Number
Confirmed for 2012 to 2014, 2017. In testing for 1995 to 2005, 2009, 2015. Not supported for 2006 to 2008, 2010 to 2011, 2016, 2018 to 2019, 2021, 2024 to 2025.
Air inlet damper actual pulse TACOMA_AIR_INLET_DAMPER_ACTUAL_PULSE
- Request
21 44 - Service 21
PID 44 - Module
7C4 → 7CC - Every
1 s - Testing
Bits 8 to 15 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 2025.
Air inlet damper target pulse TACOMA_AIR_INLET_DAMPER_TARGET_PULSE
- Request
21 44 - Service 21
PID 44 - Module
7C4 → 7CC - Every
1 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 2025.
Air outlet servo actual pulse, driver TACOMA_AIR_OUTLET_SERVO_ACTU_PULSE_D
- Request
21 43 - Service 21
PID 43 - Module
7C4 → 7CC - Every
1 s - Testing
Bits 8 to 15 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 2025.
Air outlet servo pulse, driver TACOMA_AIR_OUTLET_SERVO_PULSE_D
- Request
21 43 - Service 21
PID 43 - Module
7C4 → 7CC - Every
1 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 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 2021. Supported for 2019 to 2020, 2024 to 2026.
Ambient air temperature TACOMA_AAT_7C4Confirmed
- Request
21 22 - Service 21
PID 22 - Module
7C4 → 7CC - Every
1 s - Testing for 1995 to 2015, 2024 to 2026
Example reply from a 2023 Toyota Tacoma.
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 2016 to 2023. In testing for 1995 to 2005, 2009, 2015. Not supported for 2006 to 2008, 2010 to 2014, 2024 to 2026.
Ambient temperature TACOMA_AMBIENT_TConfirmed
- Request
22 1F 46 - Service 22
DID 1F46 - Module
700 → 708 - Every
1 s - Testing for 1995 to 2017
Example reply from a 2026 Toyota Tacoma.
Bits 0 to 7 of the reply, 8 bits.
0x31 = 49 → (49 − 40) = 9 °C
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2018 to 2026. In testing for 2015. Not supported for 2012 to 2014, 2016 to 2017.
Ambient temperature for A/C TACOMA_AC_AMB_TConfirmed
- Request
21 51 - Service 21
PID 51 - Module
7E0 → 7E8 - Every
1 s - Testing for 1995 to 2011, 2015 to 2016, 2018 to 2026
Example reply from a 2017 Toyota Tacoma.
Bits 88 to 95 of the reply, 8 bits.
0x3F = 63 → (63 − 40) = 23 °C
- Formula
(val − 40)- Range
- -40 to 215 °C
- Unit
- °C
Confirmed for 2012 to 2014, 2017. In testing for 1995 to 2005, 2009, 2015. Not supported for 2006 to 2008, 2010 to 2011, 2016, 2018 to 2019, 2021, 2024 to 2025.
Blower motor speed level TACOMA_BLOWER_MOTOR_SPEED_LEVELConfirmed
- Request
21 3C - Service 21
PID 3C - Module
7C4 → 7CC - Every
1 s - Testing for 1995 to 2016, 2024 to 2026
Example reply from a 2023 Toyota Tacoma.
Bits 0 to 7 of the reply, 8 bits.
0x00 = 0 → 0
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2017 to 2023. In testing for 1995 to 2005, 2009, 2015. Not supported for 2006 to 2008, 2010 to 2014, 2016, 2024 to 2026.
Cabin temperature TACOMA_CABIN_TConfirmed
- Request
21 21 - Service 21
PID 21 - Module
7C4 → 7CC - Every
1 s - Testing for 1995 to 2016, 2024 to 2026
Example reply from a 2023 Toyota Tacoma.
Bits 0 to 7 of the reply, 8 bits.
0x53 = 83 → (83 × 63.75 ÷ 255 − 6.5) = 14.25 °C
- Formula
(val × 63.75 ÷ 255 − 6.5)- Range
- -6.5 to 57.25 °C
- Unit
- °C
Confirmed for 2017 to 2023. In testing for 1995 to 2005, 2009, 2015. Not supported for 2006 to 2008, 2010 to 2014, 2016, 2024 to 2026.
Communication with air conditioner TACOMA_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 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 2025.
Communication with HV TACOMA_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 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 2025.
Communication with valvematic TACOMA_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 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 2025.
Evaporator fin thermistor TACOMA_EVAP_FIN_THERMISTORConfirmed
- Request
21 4B - Service 21
PID 4B - Module
7C4 → 7CC - Every
1 s - Testing for 1995 to 2015, 2024 to 2026
Example reply from a 2023 Toyota Tacoma.
Bits 0 to 7 of the reply, 8 bits.
0x56 = 86 → (86 × 89.25 ÷ 255 − 29.7) = 0.4 °C
- Formula
(val × 89.25 ÷ 255 − 29.7)- Range
- -29.7 to 59.55 °C
- Unit
- °C
Confirmed for 2016 to 2023. In testing for 1995 to 2005, 2009, 2015. Not supported for 2006 to 2008, 2010 to 2014, 2024 to 2026.
Set temperature, driver side TACOMA_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 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 2025.
Solar sensor, driver side TACOMA_SOLAR_DRIVER
- Request
21 24 - Service 21
PID 24 - Module
7C4 → 7CC - Every
1 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 1995 to 2011, 2015 to 2016, 2020, 2026. Not supported for 2012 to 2014, 2017 to 2019, 2021 to 2025.
