3.0L V6 Siennawild guess, the 1MZ engine?141 fed code is.
(it means B1S2 heater is bad,or wire to it cut or shorted.) below is fSM spec. worsd.
HO2S-12 (Bank 1 Sensor 2) Heater Circuit Malfunction Number of Trips to Set Code: 2
Trouble Code Conditions:Engine started, engine running, and the PCM detected the HO2S-12 heater current exceeded 2 amps, or that it was 0.25 amps or less.
Possible Causes: - * HO2S heater control circuit is open, shorted to ground or power
- * HO2S heater power circuit is open (check power from the relay)
- * HO2S heater is damaged or has failed
- * PCM has failed
then the factory code p1135 same deal,same reasons B1S1
A/F Sensor-11 (Bank 1 Sensor 1) Heater Circuit Malfunction Number of Trips to Set Code: 2
Trouble Code Conditions:Engine started, engine running, and the PCM detected the A/F Sensor-11 (A/FS-11) heater current was less than 0.25A, or that it was more than 8.0A at anytime during the CCM test.
Possible Causes: - * A/F sensor heater circuit or ground circuit is open
- * A/F sensor heater power circuit is open
- * A/F sensor heater is damaged or has failed
- * PCM has failed
bar stool answer.both bank 1 senors (oxygen) are bad. if wires are good.easy answer ,no?the PCM never lies. the current IS ILLEGAL,(BAD)the why takes , inspection and ohms checks , FSM shows this..your next question is where is bank 1, its on cylinder 1 side.your next question is , where is cylinder 1, it the cylinder that sticks out further to crank front pulley.front 134front 246