BMW DTC P0059 – HO2S Heater Resistance (Bank 2 Sensor 1)
DTC P0059 meaning on BMW
DTC P0059 for BMW refers to an issue with the Heated Oxygen Sensor (HO2S) Heater Resistance in Bank 2 Sensor 1. This diagnostic trouble code indicates that there is a problem with the electrical circuit that controls the heater element in the oxygen sensor located in the exhaust system of Bank 2 Sensor 1.
BMW DTC P0059 symptoms
Symptoms of DTC P0059 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Engine running rough or misfiring
- Failed emissions test
BMW DTC P0059 causes
Common causes of DTC P0059 on a BMW include:
- Faulty oxygen sensor heater
- Wiring or connector issues in the oxygen sensor circuit
- Blown fuse related to the oxygen sensor heater
- PCM (Powertrain Control Module) failure
BMW DTC P0059 seriousness
While DTC P0059 may not cause immediate drivability issues, it can lead to decreased fuel efficiency and increased emissions. Ignoring this fault can potentially cause damage to other components of the vehicle over time.
How to diagnose DTC P0059 on BMW
To diagnose DTC P0059 on a BMW, you can perform the following steps:
- Use an OBD-II scanner to retrieve the fault code and verify the code P0059.
- Inspect the wiring and connectors related to Bank 2 Sensor 1 for any visible damage or corrosion.
- Check the fuse related to the oxygen sensor heater for continuity.
- Test the resistance of the oxygen sensor heater using a multimeter.
- If necessary, perform a continuity test on the oxygen sensor heater circuit.
How to fix DTC P0059 on BMW
To fix DTC P0059 on a BMW, you can try the following solutions:
- Replace the faulty oxygen sensor with a new one.
- Repair or replace any damaged wiring or connectors in the oxygen sensor circuit.
- Replace the blown fuse related to the oxygen sensor heater.
- If the PCM is diagnosed as the issue, consider reprogramming or replacing it.
How to erase DTC P0059 on BMW
To erase DTC P0059 on a BMW, you can use an OBD-II scanner to clear the fault code after the underlying issue has been resolved. Once the fault code is cleared, the Check Engine Light should turn off. It is important to ensure that the root cause of the fault has been addressed before clearing the code.