BMW DTC P220D – NOx Sensor Supply Voltage Circuit (Bank 2 Sensor 2)
DTC P220D meaning on BMW
The Diagnostic Trouble Code (DTC) P220D for BMW refers to an issue with the NOx (Nitrogen Oxide) sensor supply voltage circuit for Bank 2 Sensor 2. This code indicates that there is a problem with the voltage supply to the NOx sensor located in the second bank of the vehicle’s exhaust system.
BMW DTC P220D symptoms
Symptoms of the BMW DTC P220D may include:
- Check Engine Light illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Possible emission control system warnings
BMW DTC P220D causes
Common causes of the BMW DTC P220D may include:
- Faulty NOx sensor
- Wiring or connector issues in the sensor circuit
- Corrosion or damage to sensor components
- Issues with the power supply to the sensor
BMW DTC P220D seriousness
The BMW DTC P220D should not be ignored as it can lead to increased emissions, reduced engine efficiency, and potential damage to other components of the vehicle’s emission control system. It is important to address this issue promptly to ensure proper vehicle operation and compliance with emissions regulations.
How to diagnose DTC P220D on BMW
To diagnose the DTC P220D on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the wiring and connectors related to the NOx sensor
- Test the voltage supply to the sensor
- Check the sensor for proper operation
How to fix DTC P220D on BMW
To fix the DTC P220D on a BMW, the following steps may be taken:
- Replace the faulty NOx sensor
- Repair or replace any damaged wiring or connectors
- Ensure proper voltage supply to the sensor
- Clear the fault codes and reset the Check Engine Light
How to erase DTC P220D on BMW
To erase the DTC P220D on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the vehicle’s ECU. Once the issue has been addressed and fixed, the codes can be cleared to reset the Check Engine Light and ensure that the problem has been resolved.
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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