Hi Super smart helpful enthusiasts.
My 04 V8 4.7 Tundra had the code P0031 come up, which is H025 (or H02S) meaning Heater Control Circuit low Bank 1 Sensor 1 (and possibly Bank 1 Sensor 2).
Can I get some help with what this means and the severity?
I susperced it was related to very little heat in the AC, and when I removed the code, it returned when I turned the heat on again.
HOWEVER, in the Haynes Manual the diagrams seem to give a different sense, of a critical one relating to a critical engine function.
What are these and what can be done? Are the sensors easily or cheaply replaced?
I'll attach the electrical diagrams which mentions the heaters/heat sensors and banks.
Thanks!
Ben.
My 04 V8 4.7 Tundra had the code P0031 come up, which is H025 (or H02S) meaning Heater Control Circuit low Bank 1 Sensor 1 (and possibly Bank 1 Sensor 2).
Can I get some help with what this means and the severity?
I susperced it was related to very little heat in the AC, and when I removed the code, it returned when I turned the heat on again.
HOWEVER, in the Haynes Manual the diagrams seem to give a different sense, of a critical one relating to a critical engine function.
What are these and what can be done? Are the sensors easily or cheaply replaced?
I'll attach the electrical diagrams which mentions the heaters/heat sensors and banks.
Thanks!
Ben.