P0164 – BMW DTC

BMW DTC P0164 – O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)

DTC P0164 meaning on BMW

The Diagnostic Trouble Code (DTC) P0164 for BMW indicates an issue with the O2 sensor circuit on Bank 2 Sensor 3. This code specifically points to a high voltage condition being detected by the O2 sensor in that location. The O2 sensor is responsible for monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module for proper air-fuel ratio adjustments.

BMW DTC P0164 symptoms

Symptoms associated with DTC P0164 on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Decreased fuel efficiency
• Engine running rough or misfiring
• Increased emissions

BMW DTC P0164 causes

The high voltage condition detected by the O2 sensor on Bank 2 Sensor 3 in a BMW can be caused by various factors, including:

• Faulty O2 sensor
• Wiring or connector issues in the O2 sensor circuit
• Exhaust leaks near the sensor
• Engine running rich

BMW DTC P0164 seriousness

While DTC P0164 may not cause immediate drivability issues, it is important to address this problem promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance and fuel efficiency.

How to diagnose DTC P0164 on BMW

To diagnose DTC P0164 on a BMW, you can follow these steps:

1. Use an OBD-II scanner to retrieve the fault code and confirm it is P0164.
2. Inspect the wiring and connectors related to Bank 2 Sensor 3 for any visible damage or corrosion.
3. Check for exhaust leaks near the O2 sensor location.
4. Test the O2 sensor using a multimeter to verify its functionality.

How to fix DTC P0164 on BMW

To fix DTC P0164 on a BMW, you can consider the following actions:

1. Replace the faulty O2 sensor on Bank 2 Sensor 3.
2. Repair any damaged wiring or connectors in the O2 sensor circuit.
3. Address any exhaust leaks near the sensor location.
4. If the engine is running rich, diagnose and fix the underlying issue causing the rich condition.

How to erase DTC P0164 on BMW

To erase DTC P0164 on a BMW after fixing the underlying issue, you can use an OBD-II scanner to clear the fault code. Simply locate the option to clear DTCs in the scanner menu and follow the on-screen instructions to erase the code from the vehicle’s memory.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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