Lighting & General Electrical
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...