BMW DTC P220C – NOx Sensor Supply Voltage Circuit (Bank 2 Sensor 1)
DTC P220C meaning on BMW
DTC P220C for BMW refers to an issue with the NOx (Nitrogen Oxide) sensor supply voltage circuit on Bank 2 Sensor 1. This diagnostic trouble code indicates that there is a problem with the voltage supply to the NOx sensor located in Bank 2 Sensor 1 of the vehicle.
BMW DTC P220C symptoms
Symptoms of DTC P220C on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Increased fuel consumption
- Possible emission issues
BMW DTC P220C causes
Common causes of DTC P220C on a BMW 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 P220C seriousness
DTC P220C should not be ignored as it can lead to increased emissions, reduced engine efficiency, and potential damage to other components if left unresolved. It is important to address this issue promptly to ensure proper vehicle operation and compliance with emissions regulations.
How to diagnose DTC P220C on BMW
To diagnose DTC P220C on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the wiring and connectors in the NOx sensor circuit for any damage or corrosion
- Test the NOx sensor for proper operation using a multimeter
- Check the power supply to the sensor for voltage and continuity
How to fix DTC P220C on BMW
To fix DTC P220C on a BMW, you may need to:
- Replace the faulty NOx sensor
- Repair or replace any damaged wiring or connectors in the sensor circuit
- Clean or replace sensor components if they are corroded or damaged
- Ensure proper power supply to the sensor
How to erase DTC P220C on BMW
To erase DTC P220C on a BMW, you can:
- Use a diagnostic scanner to clear the fault code after the issue has been resolved
- Ensure that the repair has been successful by checking for any recurring fault codes
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.