BMW DTC P0957 – Auto Shift Manual Mode Circuit Low
DTC P0957 meaning on BMW
The Diagnostic Trouble Code (DTC) P0957 for BMW refers to the Auto Shift Manual Mode Circuit Low. This code indicates that there is a low voltage condition detected in the circuit responsible for controlling the automatic transmission’s manual mode.
BMW DTC P0957 symptoms
Symptoms of DTC P0957 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Problems shifting gears
- Transmission stuck in a particular gear
- Reduced fuel efficiency
BMW DTC P0957 causes
The common causes of DTC P0957 on a BMW include:
- Faulty auto shift manual mode switch
- Wiring issues in the circuit
- Defective transmission control module
- Corrosion or poor connections in the circuit
BMW DTC P0957 seriousness
While DTC P0957 may not always result in immediate drivability issues, it is essential to address this problem promptly. Ignoring this code can lead to further transmission problems and potential safety hazards on the road.
How to diagnose DTC P0957 on BMW
To diagnose DTC P0957 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer.
- Inspect the auto shift manual mode switch and its wiring for any visible damage or corrosion.
- Check the transmission control module for any signs of malfunction.
- Perform a thorough inspection of the circuit to identify any loose connections or wiring issues.
How to fix DTC P0957 on BMW
To fix DTC P0957 on a BMW, you can consider the following steps:
- Replace the faulty auto shift manual mode switch if necessary.
- Repair or replace any damaged wiring in the circuit.
- If the transmission control module is defective, it may need to be replaced or reprogrammed.
- Clean any corroded connectors and ensure proper connections in the circuit.
How to erase DTC P0957 on BMW
To erase DTC P0957 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. After addressing the underlying issue causing the code, clearing the code will reset the Check Engine Light and ensure proper operation of the transmission system.
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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