Volkswagen DTC P1197 – O2S Heater Circuit Bank 2 Sensor 1 Electrical Malfunction
DTC P1197 meaning on Volkswagen
DTC P1197 on a Volkswagen indicates an O2S (Oxygen Sensor) Heater Circuit Bank 2 Sensor 1 Electrical Malfunction. This means that there is an issue with the electrical circuit that controls the heating element of the oxygen sensor located in Bank 2 Sensor 1 of the vehicle.
Volkswagen DTC P1197 symptoms
Symptoms of DTC P1197 on a Volkswagen may include:
- Check Engine Light illuminated on the dashboard
- Poor fuel economy
- Rough idling or engine misfires
- Reduced engine performance
Volkswagen DTC P1197 causes
Common causes of DTC P1197 on a Volkswagen include:
- Failed oxygen sensor heater
- Wiring or connector issues in the oxygen sensor circuit
- Blown fuse related to the oxygen sensor heater circuit
Volkswagen DTC P1197 seriousness
While DTC P1197 may not cause immediate drivability issues, it is important to address this fault as it can lead to poor engine performance and increased emissions. Ignoring this fault may result in further damage to the vehicle’s components.
How to diagnose DTC P1197 on Volkswagen
To diagnose DTC P1197 on a Volkswagen, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the wiring and connectors in the oxygen sensor heater circuit
- Check the fuse related to the oxygen sensor heater
- Test the oxygen sensor heater for proper resistance
How to fix DTC P1197 on Volkswagen
To fix DTC P1197 on a Volkswagen, the following steps may be taken:
- Replace the faulty oxygen sensor if the heater is found to be defective
- Repair any damaged wiring or connectors in the oxygen sensor circuit
- Replace the blown fuse related to the oxygen sensor heater
- Clear the fault code and perform a test drive to ensure the issue is resolved
How to erase DTC P1197 on Volkswagen
To erase DTC P1197 on a Volkswagen, a diagnostic scanner can be used to clear the fault code from the vehicle’s ECU. After the repair has been completed and the issue resolved, the fault code can be cleared to turn off the Check Engine Light.
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