Ford Explorer, Mercury Mountaineer,Lincoln Aviator
It all started with P0135 - Bank1 Sensor1 O2 sensor. I replaced it and now this:
Forscan reading: "P0135, HO2SHTR11 - Heater Circuit Malf. This DTC may be caused by Heater Circuit Shorted to VBATT, Short to Ground, Open Circuit"
P0135 (Bank 1 Sensor 1 O2 sensor),
P0141 (Bank 1 Sensor 2 O2...