BMW DTC P2105 – Throttle Actuator Control System – Forced Engine Shutdown
DTC P2105 meaning on BMW
DTC P2105 on a BMW refers to the Throttle Actuator Control System – Forced Engine Shutdown. This diagnostic trouble code indicates that the Engine Control Module (ECM) has detected an issue with the throttle actuator control system that could potentially lead to a forced engine shutdown to prevent further damage or unsafe operation.
BMW DTC P2105 symptoms
Symptoms of DTC P2105 on a BMW may include:
- Engine stalling or shutting down unexpectedly
- Reduced engine power
- Difficulty accelerating
- Illuminated Check Engine Light
BMW DTC P2105 causes
Common causes of DTC P2105 on a BMW include:
- Throttle actuator malfunction
- Wiring or connector issues in the throttle actuator circuit
- Faulty Engine Control Module (ECM)
- Throttle position sensor problems
BMW DTC P2105 seriousness
DTC P2105 is a serious issue that should not be ignored. If left unresolved, it can lead to unsafe driving conditions, engine damage, or further mechanical problems. It is recommended to address this code promptly to ensure the vehicle’s safety and performance.
How to diagnose DTC P2105 on BMW
To diagnose DTC P2105 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the trouble codes stored in the ECM
- Inspect the throttle actuator and related components for any visible damage or wear
- Check the wiring and connectors in the throttle actuator circuit for loose connections or corrosion
- Test the throttle position sensor for proper operation
How to fix DTC P2105 on BMW
To fix DTC P2105 on a BMW, the following steps may be taken:
- Replace the faulty throttle actuator if necessary
- Repair or replace any damaged wiring or connectors in the throttle actuator circuit
- Reset the ECM and clear the trouble codes
- Perform a throttle relearn procedure to recalibrate the throttle position sensor
How to erase DTC P2105 on BMW
To erase DTC P2105 on a BMW, follow these steps:
- Use a diagnostic scanner to access the ECM and clear the trouble codes
- Ensure that the underlying issue causing the code has been resolved
- Perform a test drive to confirm that the code does not return
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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