What is the trouble code for O2 sensor heater?
P0147 is a diagnostic trouble code (DTC) for “O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 3)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What does the O2 sensor heater code p0147 mean?
What the P0147 code means. P0147 is the OBD-II generic code indicating the Engine Control Module (ECM) has tested the O2 sensor heater circuit during startup and detects problems with the bank 1 sensor 3 O2 sensor heater circuit.
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.
What causes bank 1 O2 sensor to fail?
The O2 sensor 3 for bank 1 is only used to check catalyst efficiency. The code will cause a failure for emission testing due to the Check Engine Light being on, and catalyst monitors not passing. What repairs can fix the P0147 code?
Is the bank 1 sensor 3 code p0042 serious?
P0042 is not a particularly serious code. The heater circuit of bank 1 sensor 3 is required for accurate readings and may cause improper readings and/or poor fuel economy until it is repaired. What repairs can fix the P0042 code?
How to diagnose O2 sensor heater circuit failure?
The modified test harness with the light will give you easy access to the circuit. Remember, the engine needs to be running at this point. If the voltage is close to zero on the positive heater wire, then locate the open circuit in the power wire back to the fuse. Again, it may have a relay in the circuit as well.
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.
Can a faulty oxygen sensor trigger a p0141 code?
If your vehicle only has four cylinders, it will only have one bank and, typically, one downstream sensor, so it can’t trigger this code. Instead, a faulty downstream heated oxygen sensor will be set as P0141 or Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2).