p0164 o2 sensor circuit high voltage bank 2 sensor 3
P0164 O2 Sensor Circuit High Voltage Bank 2 Sensor 3
Definition: This diagnostic trouble code (DTC) indicates that the oxygen sensor located on bank 2, sensor 3, is reporting a higher than expected voltage to the engine control module (ECM). This suggests that there may be an issue with the sensor itself or its circuit.
p0164: O2 Sensor Circuit High Voltage Bank 2 Sensor 3 – Severe
Common Causes
p0164 – O2 Sensor Circuit High Voltage Bank 2 Sensor 3
Common causes of this OBD2 code include:
- Faulty oxygen sensor
- Wiring issues in the oxygen sensor circuit
- Exhaust leaks near the sensor
- Engine running rich or lean
- Faulty engine control module (ECM)
Common Misdiagnosis
OBD2 Code: P0164
Description: O2 Sensor Circuit High Voltage Bank 2 Sensor 3
Common Misdiagnosis: Replacing the oxygen sensor without checking for wiring issues or exhaust leaks that could cause false high voltage readings.
Common Diagnostic Steps
OBD2 Code: P0164
Description: O2 Sensor Circuit High Voltage Bank 2 Sensor 3
Common Diagnostic Steps:
- Inspect the wiring and connectors for damage or corrosion.
- Check the oxygen sensor for proper operation using a multimeter.
- Verify the voltage signal from the sensor is within specifications.
- Examine the exhaust system for leaks that could affect sensor readings.
- Test the vehicle’s PCM (Powertrain Control Module) for faults or updates.
- If necessary, replace the faulty oxygen sensor with a new one.