BMW DTC P0A49 – Drive Motor ‘B’ Position Sensor Circuit Intermittent
DTC P0A49 meaning on BMW
The DTC P0A49 fault code on a BMW indicates an intermittent issue with the Drive Motor ‘B’ Position Sensor Circuit. This code is specific to hybrid vehicles and relates to a problem with the position sensor for the drive motor ‘B’.
BMW DTC P0A49 symptoms
Symptoms of the DTC P0A49 on a BMW may include:
- Check Engine Light illuminated
- Reduced power or performance
- Hybrid system not engaging properly
BMW DTC P0A49 causes
Common causes of the DTC P0A49 on a BMW include:
- Faulty drive motor ‘B’ position sensor
- Wiring or connection issues in the sensor circuit
- Intermittent electrical problems
BMW DTC P0A49 seriousness
The DTC P0A49 fault code should be addressed promptly as it can affect the performance and drivability of the vehicle. Ignoring this code may lead to further damage to the hybrid system components.
How to diagnose DTC P0A49 on BMW
To diagnose the DTC P0A49 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the drive motor ‘B’ position sensor and its wiring for any visible damage
- Test the sensor’s resistance and voltage readings to determine if it is functioning correctly
- Check for any loose connections or corrosion in the sensor circuit
How to fix DTC P0A49 on BMW
To fix the DTC P0A49 on a BMW, the following steps may be taken:
- Replace the faulty drive motor ‘B’ position sensor
- Repair any damaged wiring or connections in the sensor circuit
- Clear the fault code and reset the system
- Perform a test drive to ensure the issue has been resolved
How to erase DTC P0A49 on BMW
To erase the DTC P0A49 fault code on a BMW, a diagnostic scanner can be used to clear the code from the vehicle’s computer system. Once the repair has been completed and the issue resolved, the code can be erased to turn off the Check Engine Light.
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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