BMW DTC P1E3A – Drive Motor ‘B’ Control Module Supply Voltage Circuit ‘A’ Low
DTC P1E3A meaning on BMW
The DTC P1E3A fault code on BMW vehicles indicates an issue with the Drive Motor ‘B’ Control Module Supply Voltage Circuit ‘A’ being too low. This fault code is specific to the electric drive system of BMW hybrid or electric vehicles.
BMW DTC P1E3A symptoms
Symptoms of the DTC P1E3A fault code on a BMW may include:
- Reduced power or performance
- Warning lights on the dashboard
- Vehicle going into a reduced power or limp mode
BMW DTC P1E3A causes
Common causes of the DTC P1E3A fault code on BMW vehicles include:
- Issues with the drive motor control module
- Wiring or connection problems in the supply voltage circuit
- Problems with the high voltage battery system
BMW DTC P1E3A seriousness
The DTC P1E3A fault code should be addressed promptly as it can affect the performance and drivability of the vehicle. Ignoring this fault code may lead to further damage to the electric drive system components.
How to diagnose DTC P1E3A on BMW
To diagnose the DTC P1E3A fault code on a BMW, a thorough inspection of the drive motor control module, wiring, and high voltage battery system is necessary. Diagnostic tools such as a scan tool capable of reading BMW specific fault codes will be required to pinpoint the exact cause of the issue.
How to fix DTC P1E3A on BMW
Fixing the DTC P1E3A fault code on a BMW may involve:
- Inspecting and repairing any damaged wiring or connections in the supply voltage circuit
- Testing and potentially replacing the drive motor control module
- Checking and servicing the high voltage battery system
How to erase DTC P1E3A on BMW
Once the underlying issue causing the DTC P1E3A fault code on a BMW has been resolved, the code can be cleared using a diagnostic scan tool. By erasing the fault code, the vehicle’s onboard computer will reset and monitor the system for any recurring issues.
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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