Eror message P0135
 

Check Engine light lite up. Checked with 'reader' and received an erorr message - 'Erorr Code P0135 - Bank 1 Sesor 1 - Sensor Heater Circuit Multifunction'

Does any one know what is it and how to remediate problem?

Thanks

Is O2 sensor bank one- either the heater coil in the sensor is bad or you have a circuit problem in the vehicle wiring. You will need a wiring diagram to troubleshoot- on a 3 wire sensor, one is ground, one 12V and one signal I believe. You will also need a multimeter to properly diagnose.

Does anyone knows how to replace O2 sensor or might have a part number?