What causes a p0135 code?

failed oxygen sensor/heating element

failed ECM (engine control module)/PCM

oxygen sensor heater circuit has an open circuit/is shorted

bad electrical connection (corroded connector)

What is code p0135?

The code P0135 is a pure electric code and is easy to diagnose using a multimeter. In many cars, the battery voltage is supplied through a fuse and relay to the sensor heating element.

What does the code p0135 mean on a PT Cruiser?

Chrysler PT Cruiser P0135: Heated 02 Sensor – Heating Element Failed November 21, 2018 by Jason P0135 is a very common OBDII code that occurs in the Chrysler PT Cruiser. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1.