BMW DTC P10DA – Reductant Metering Line Heater Control Circuit/Open
DTC P10DA meaning on BMW
DTC P10DA on a BMW refers to a fault with the Reductant Metering Line Heater Control Circuit/Open. This diagnostic trouble code indicates that there is an open circuit in the control circuit for the reductant metering line heater system.
BMW DTC P10DA symptoms
Symptoms of DTC P10DA on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Possible DEF (diesel exhaust fluid) system warnings
BMW DTC P10DA causes
Common causes of DTC P10DA on a BMW include:
- Faulty reductant metering line heater
- Open or short circuit in the control wiring
- Defective reductant metering unit
BMW DTC P10DA seriousness
The seriousness of DTC P10DA on a BMW depends on the underlying cause. If left unresolved, it can lead to reduced engine performance and potential emissions issues. It is recommended to address this fault promptly to prevent further complications.
How to diagnose DTC P10DA on BMW
To diagnose DTC P10DA on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the reductant metering line heater and its wiring for any visible damage
- Check the resistance of the heater element to determine if it is within specifications
- Test the control circuit for continuity and proper voltage supply
How to fix DTC P10DA on BMW
To fix DTC P10DA on a BMW, you may need to:
- Replace the faulty reductant metering line heater
- Repair any open or short circuits in the control wiring
- Replace the reductant metering unit if necessary
- Clear the fault codes and perform a test drive to ensure the issue is resolved
How to erase DTC P10DA on BMW
To erase DTC P10DA on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s ECU. Once the codes are cleared, you can perform a test drive to verify that the issue 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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