BMW DTC P0920 – Gear Shift Forward Actuator Circuit/Open
DTC P0920 meaning on BMW
The Diagnostic Trouble Code (DTC) P0920 for BMW refers to the Gear Shift Forward Actuator Circuit/Open. This code indicates that there is an open circuit detected in the gear shift forward actuator system, preventing proper communication and operation of the actuator.
BMW DTC P0920 symptoms
Symptoms of DTC P0920 on a BMW may include:
- Difficulty shifting gears
- Transmission not engaging properly
- Transmission stuck in a particular gear
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC P0920 causes
The common causes of DTC P0920 on a BMW can include:
- Faulty gear shift forward actuator
- Open or short circuit in the actuator wiring
- Corrosion or poor connections in the actuator circuit
- Defective transmission control module (TCM)
BMW DTC P0920 seriousness
DTC P0920 should be addressed promptly as it can lead to drivability issues and potential transmission damage if left unresolved. Ignoring this code may result in further complications and potentially unsafe driving conditions.
How to diagnose DTC P0920 on BMW
To diagnose DTC P0920 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 gear shift forward actuator and its wiring for any visible damage or corrosion.
- Check the actuator circuit for continuity and proper voltage using a multimeter.
- Test the transmission control module (TCM) for proper functionality.
How to fix DTC P0920 on BMW
To fix DTC P0920 on a BMW, you can consider the following steps:
- Replace the faulty gear shift forward actuator if necessary.
- Repair any open or short circuits in the actuator wiring.
- Clean and secure any corroded connections in the actuator circuit.
- If the TCM is faulty, replace or reprogram it as needed.
How to erase DTC P0920 on BMW
To erase DTC P0920 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 allow for a fresh monitoring cycle.
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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