BMW DTC P2063 – Reductant/Regeneration Supply Control Circuit Low
DTC P2063 meaning on BMW
DTC P2063 on a BMW indicates an issue with the Reductant/Regeneration Supply Control Circuit being detected as low. This code is related to the system responsible for controlling the supply of reductant, typically diesel exhaust fluid (DEF), to the exhaust after-treatment system for emissions control.
BMW DTC P2063 symptoms
Symptoms of DTC P2063 on a BMW may include:
- Check Engine Light (MIL) illuminated
- Reduced engine performance
- Increased fuel consumption
- Possible DEF system warnings
BMW DTC P2063 causes
Common causes of DTC P2063 on a BMW include:
- Defective reductant control module
- Wiring issues in the control circuit
- Problems with the reductant injector
- Low DEF fluid level
BMW DTC P2063 seriousness
The seriousness of DTC P2063 on a BMW lies in its impact on emissions control and engine performance. Ignoring this code can lead to increased emissions, reduced fuel efficiency, and potential long-term damage to the exhaust after-treatment system.
How to diagnose DTC P2063 on BMW
To diagnose DTC P2063 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the reductant control module and wiring for any visible damage
- Check the DEF fluid level and quality
- Test the reductant injector for proper operation
How to fix DTC P2063 on BMW
To fix DTC P2063 on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring in the control circuit
- Replace the reductant control module if found faulty
- Ensure the DEF fluid level is adequate and of good quality
- Replace the reductant injector if necessary
How to erase DTC P2063 on BMW
To erase DTC P2063 on a BMW, the fault code can be cleared using a diagnostic scanner. After the necessary repairs have been made, the code can be reset to see if the issue has been resolved. It is important to ensure that the underlying problem causing the fault code has been addressed before clearing the code.
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.