BMW DTC P168C – Throttle Position Output Circuit High (Bank 2)
DTC P168C meaning on BMW
The DTC P168C error code on a BMW indicates an issue with the Throttle Position Output Circuit High in Bank 2. This means that the signal voltage from the throttle position sensor in Bank 2 is higher than the expected range, causing the engine control module to detect a fault.
BMW DTC P168C symptoms
Symptoms of the BMW DTC P168C error code may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Reduced engine performance
- Engine stalling or hesitation
- Difficulty accelerating smoothly
BMW DTC P168C causes
Common causes of the BMW DTC P168C error code include:
- Faulty throttle position sensor
- Wiring or connector issues in the throttle position sensor circuit
- Electronic control module (ECM) malfunction
BMW DTC P168C seriousness
The DTC P168C error code should not be ignored as it can lead to drivability issues and potential engine damage if left unresolved. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P168C on BMW
To diagnose the DTC P168C error code on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the engine control module.
- Inspect the throttle position sensor and its wiring for any visible damage or corrosion.
- Check the throttle position sensor output voltage using a multimeter to verify if it is within the specified range.
- Perform a thorough inspection of the throttle position sensor circuit for any loose connections or shorts.
How to fix DTC P168C on BMW
To fix the DTC P168C error code on a BMW, you can try the following solutions:
- Replace the faulty throttle position sensor in Bank 2.
- Repair any damaged wiring or connectors in the throttle position sensor circuit.
- If the ECM is determined to be faulty, consider replacing or reprogramming it.
How to erase DTC P168C on BMW
To erase the DTC P168C error code on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the engine control module. After addressing the underlying issue causing the fault code, clearing the codes will reset the Check Engine Light and monitor the system for any new faults.
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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