BMW DTC P155E – Throttle Actuator Monitoring Actual Value / Desired Value Correlation (Bank 2)
DTC P155E meaning on BMW
The DTC P155E error code on BMW vehicles indicates an issue with the Throttle Actuator Monitoring Actual Value / Desired Value Correlation for Bank 2. This means that there is a discrepancy between the actual position of the throttle actuator and the desired position as determined by the engine control module.
BMW DTC P155E symptoms
Symptoms of the DTC P155E error code on a BMW may include:
- Reduced engine power
- Engine stalling
- Difficulty accelerating
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC P155E causes
Common causes of the DTC P155E error code on BMW vehicles include:
- Throttle actuator failure
- Wiring or connector issues in the throttle actuator circuit
- Faulty engine control module (ECM)
BMW DTC P155E seriousness
The DTC P155E error code should be addressed promptly as it can lead to drivability issues and potential safety concerns. Ignoring this code may result in further damage to the vehicle and could lead to more expensive repairs down the line.
How to diagnose DTC P155E on BMW
To diagnose the DTC P155E error code on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECM
- Inspect the throttle actuator for any signs of damage or wear
- Check the wiring and connectors in the throttle actuator circuit for any issues
- Test the throttle actuator position sensor for proper operation
How to fix DTC P155E on BMW
To fix the DTC P155E error code on a BMW, the following steps may be taken:
- Replace the throttle actuator if it is found to be faulty
- Repair any damaged wiring or connectors in the throttle actuator circuit
- If the ECM is determined to be faulty, it may need to be replaced or reprogrammed
How to erase DTC P155E on BMW
To erase the DTC P155E error code on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the ECM. Once the issue has been addressed and fixed, the code can be cleared to reset the Check Engine Light and ensure that the repair was successful.
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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