BMW DTC P156E – Throttle Valve Enable Line Circuit High (Bank 1)
DTC P156E meaning on BMW
The DTC P156E error code on a BMW indicates an issue with the Throttle Valve Enable Line Circuit being detected as high in Bank 1. This means that there is a problem with the signal or voltage level in the circuit that controls the throttle valve in the engine.
BMW DTC P156E symptoms
Symptoms of the DTC P156E error code on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Reduced engine power or acceleration
- Engine stalling or rough idling
- Difficulty starting the engine
BMW DTC P156E causes
Common causes of the DTC P156E error code on a BMW include:
- Faulty throttle valve position sensor
- Wiring or connector issues in the throttle valve enable line circuit
- Corrosion or poor connections in the circuit
- Electronic control module (ECM) malfunction
BMW DTC P156E seriousness
The DTC P156E error code should not be ignored as it can lead to drivability issues and potential engine damage if not addressed promptly. It is recommended to diagnose and fix the issue as soon as possible to prevent further complications.
How to diagnose DTC P156E on BMW
To diagnose the DTC P156E error code on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECM
- Inspect the throttle valve position sensor and its wiring for any visible damage or corrosion
- Check the throttle valve enable line circuit for continuity and proper voltage levels
- Test the ECM for proper operation and communication
How to fix DTC P156E on BMW
To fix the DTC P156E error code on a BMW, you can try the following solutions:
- Replace the faulty throttle valve position sensor
- Repair or replace any damaged wiring or connectors in the throttle valve enable line circuit
- Clean any corrosion or poor connections in the circuit
- If necessary, replace the ECM with a new one
How to erase DTC P156E on BMW
To erase the DTC P156E error code on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. After fixing the underlying issue causing the error code, you can reset the codes to turn off the Check Engine Light and ensure that the problem has been resolved.
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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