The O2 sensor heater circuit helps warm up the O2 sensor. The purpose of this is to allow O2 sensor to get to normal operating temperature without having to wait for exhaust pipes to warm up so it can give accurate readings. It is built into O2 sensor.
Load circuit
In 2012 about $40
Heated oxygen sensor heater circuit malfunction (bank 1, sensor 1): Open or short in heated oxygen sensor heater circuit Heated oxygen sensor heater malfunction (Haynes Repair Manual)
To change the heater core on a 2002 Toyota Tundra, start by disconnecting the battery and draining the coolant from the radiator. Remove the dashboard and the center console to access the heater core housing, which involves detaching various components and screws. Once the housing is open, remove the old heater core and replace it with the new one, then reassemble everything in reverse order, ensuring all connections are secure. Finally, refill the coolant and check for leaks before reconnecting the battery.
Trouble code P1135 means: Air-Fuel Sensor Heater Circuit Response Malfunction
Trouble code P1135 means: Air-Fuel Sensor Heater Circuit Response Malfunction
Trouble code P1135 means: Air-Fuel Sensor Heater Circuit Response Malfunction
Trouble code P0135 means:O2 sensor heater circuit malfunction (Bank 1 Sensor 1)
how to replace a heater matrix in a toyota previa
It is the one on the passenger side behind the catalytic converter
Trouble code P1135 means: Air-Fuel Sensor Heater Circuit Response Malfunction
Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)symptomsOther than the MIL light illuminating you may not notice any performance issues.causeA short in the O2 sensor heater circuit or the sensor itselfA faulty O2 sensor heaterWiring or connectors are broken or frayed to the sensor or relayBad PCM or ECMThe fixCorrect wiring short or loose connector found in inspection.and/orReplace the bank 1 sensor 1 O2 sensor