Where is the O2 sensor on a p0135 heater?
In case you’re wondering, where the oxygen (O2) sensor that the code P0135 is accusing of being bad is, this bad boy is located on the exhaust manifold and before the catalytic converter. You can find this tutorial in Spanish here: Cómo Probar El Código P0135 Con Multímetro (3.5L GM) (at: autotecnico-online.com ).
What causes a heated O2 sensor to not work?
This code can only be caused by problems in O2 sensor heater circuit, or by the sensor itself. Typically, heated O2 sensors have four wires – two of which go to the heater circuit and two that are power and ground for the sensor. In this case study, we are only concerned with the heater circuit.
How to diagnose a p0135-heater performance Bank 1?
A P0135 DTC says: HO2S Heater Performance Bank 1 Sensor 1 and this means that the PCM (Powertrain Control Module = Fuel Injection Computer) has detected a problem with the front oxygen sensor’s heater element or a problem in the heater’s circuit (wires).
Where is the Black Wire on the O2 sensor?
The black ( BLK) wire, of the O2 sensor engine wiring harness connector, is the one that feeds power to the front O2 sensor’s heater element. CAUTION: Perform all of the oxygen sensor tests with a completely cold engine.
What does the O2 sensor heater code p0135 mean?
What the P0135 code means. P0135 is the OBD-II generic code indicating the engine control module (ECM) has tested the O2 sensor heater circuit and has detected a problem with the bank 1 sensor 1 O2 sensor heater circuit.
This code can only be caused by problems in O2 sensor heater circuit, or by the sensor itself. Typically, heated O2 sensors have four wires – two of which go to the heater circuit and two that are power and ground for the sensor. In this case study, we are only concerned with the heater circuit.
The black ( BLK) wire, of the O2 sensor engine wiring harness connector, is the one that feeds power to the front O2 sensor’s heater element. CAUTION: Perform all of the oxygen sensor tests with a completely cold engine.
What is the code for heated oxygen sensor?
P0135 – Heated oxygen sensor (HO2S) 1, bank 1, heater control – circuit malfunction Trouble Code Fault Location Probable Cause P0135 Heated oxygen sensor (HO2S) 1, bank 1, h Fuse, wiring, H025, ECM