BMW DTC P1A6E – Electric/Auxiliary Transmission Fluid Pump Overspeed
DTC P1A6E meaning on BMW
DTC P1A6E on a BMW refers to an Electric/Auxiliary Transmission Fluid Pump Overspeed fault. This diagnostic trouble code indicates that the electric or auxiliary transmission fluid pump is operating at a speed higher than the specified limit set by the vehicle’s control module.
BMW DTC P1A6E symptoms
Symptoms of DTC P1A6E on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Transmission shifting issues
- Reduced fuel efficiency
- Vehicle may go into limp mode
BMW DTC P1A6E causes
Common causes of DTC P1A6E on a BMW include:
- Malfunctioning electric or auxiliary transmission fluid pump
- Wiring or connector issues related to the pump
- Faulty control module programming
BMW DTC P1A6E seriousness
The seriousness of DTC P1A6E on a BMW can vary. While the vehicle may still be operable with this fault, continued driving with transmission pump issues can lead to further damage to the transmission system and potentially result in costly repairs if not addressed promptly.
How to diagnose DTC P1A6E on BMW
To diagnose DTC P1A6E on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and any related codes
- Inspect the electric or auxiliary transmission fluid pump for proper operation
- Check the wiring and connectors associated with the pump for any damage or corrosion
- Test the control module for proper function
How to fix DTC P1A6E on BMW
Fixing DTC P1A6E on a BMW may involve the following steps:
- Replace the electric or auxiliary transmission fluid pump if found to be faulty
- Repair or replace any damaged wiring or connectors
- Reprogram the control module if necessary
- Clear the fault codes and test drive the vehicle to ensure the issue is resolved
How to erase DTC P1A6E on BMW
To erase DTC P1A6E on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s memory. After the repair has been completed and the issue causing the fault code has been resolved, clearing the code will reset the Check Engine Light and ensure that the fault does not reoccur.
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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