BMW DTC P1AFF – Drive Motor ‘B’ Inverter Switch-On Error
DTC P1AFF meaning on BMW
The DTC P1AFF error code on BMW vehicles indicates a Drive Motor ‘B’ Inverter Switch-On Error. This fault is related to the inverter system that controls the electric drive motor in the vehicle.
BMW DTC P1AFF symptoms
Symptoms of the BMW DTC P1AFF error code may include:
- Reduced power or acceleration
- Engine stalling
- Warning lights on the dashboard
- Vehicle going into limp mode
BMW DTC P1AFF causes
Common causes of the BMW DTC P1AFF error code include:
- Faulty inverter switch
- Issues with the drive motor ‘B’
- Wiring or connection problems
- Software glitches
BMW DTC P1AFF seriousness
The DTC P1AFF error code should be addressed promptly as it can lead to drivability issues and potential safety concerns. Ignoring this fault may result in further damage to the vehicle’s electric drive system.
How to diagnose DTC P1AFF on BMW
To diagnose the DTC P1AFF error on a BMW, a comprehensive diagnostic scan using a compatible OBD-II scanner is recommended. This scan will retrieve the specific fault codes and provide valuable data to pinpoint the exact cause of the issue.
How to fix DTC P1AFF on BMW
Fixing the BMW DTC P1AFF error code may involve:
- Inspecting and repairing any damaged wiring or connections
- Testing and replacing the faulty inverter switch or drive motor ‘B’
- Updating software or performing reprogramming if necessary
How to erase DTC P1AFF on BMW
After addressing the root cause of the DTC P1AFF error on a BMW, the fault codes can be cleared using an OBD-II scanner. This will reset the vehicle’s system and turn off the warning lights on the dashboard.
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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