BMW DTC P2207 – NOx Sensor Heater Control Circuit High (Bank 1 Sensor 1)
DTC P2207 meaning on BMW
The Diagnostic Trouble Code (DTC) P2207 for BMW refers to the NOx (Nitrogen Oxide) sensor heater control circuit high on Bank 1 Sensor 1. This code indicates that there is a malfunction in the electrical circuit that controls the heater for the NOx sensor located in Bank 1 Sensor 1 of the vehicle.
BMW DTC P2207 symptoms
Symptoms of DTC P2207 on a BMW may include:
- Check Engine Light (MIL) illuminated
- Reduced engine performance
- Increased fuel consumption
- Possible emission issues
BMW DTC P2207 causes
Common causes of DTC P2207 on a BMW include:
- Faulty NOx sensor heater
- Short circuit or open circuit in the sensor heater wiring
- Defective sensor heater control module
- Corrosion or poor connections in the sensor circuit
BMW DTC P2207 seriousness
The seriousness of DTC P2207 on a BMW lies in its impact on emissions and engine performance. Ignoring this code can lead to increased emissions, reduced fuel efficiency, and potential long-term damage to the vehicle’s engine and emission control system.
How to diagnose DTC P2207 on BMW
To diagnose DTC P2207 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes and freeze frame data
- Inspect the wiring and connectors related to the NOx sensor heater
- Test the NOx sensor heater for proper resistance and functionality
- Check the sensor heater control module for any faults
How to fix DTC P2207 on BMW
To fix DTC P2207 on a BMW, you can consider the following actions:
- Replace the faulty NOx sensor heater
- Repair any damaged wiring or connectors in the sensor heater circuit
- Replace the sensor heater control module if necessary
- Clear the fault codes and perform a test drive to ensure the issue is resolved
How to erase DTC P2207 on BMW
To erase DTC P2207 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s Engine Control Module (ECM). After fixing the underlying issue causing the code, clearing the codes will reset the Check Engine Light and monitor the system for any new faults.
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.