BMW DTC P01C4 – Fuel Pressure Sensor ‘A’ Circuit Range/Performance
DTC P01C4 meaning on BMW
The DTC P01C4 fault code on a BMW indicates an issue with the Fuel Pressure Sensor ‘A’ Circuit Range/Performance. This means that the signal from the fuel pressure sensor is outside the expected range or is not performing as expected.
BMW DTC P01C4 symptoms
Symptoms of the BMW DTC P01C4 may include:
- Check Engine Light illuminated
- Decreased fuel efficiency
- Engine running rough
- Engine stalling
BMW DTC P01C4 causes
Common causes of the BMW DTC P01C4 fault code include:
- Malfunctioning fuel pressure sensor
- Wiring or connector issues in the fuel pressure sensor circuit
- Low fuel pressure
- Fuel system leaks
BMW DTC P01C4 seriousness
The BMW DTC P01C4 fault code should be addressed promptly as it can lead to drivability issues and potential damage to the engine if left unresolved.
How to diagnose DTC P01C4 on BMW
To diagnose the DTC P01C4 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the fuel pressure sensor and its wiring for any visible damage
- Check the fuel pressure using a gauge to ensure it is within specifications
- Perform a visual inspection of the fuel system for leaks
How to fix DTC P01C4 on BMW
To fix the DTC P01C4 on a BMW, the following steps may be taken:
- Replace the fuel pressure sensor if it is found to be faulty
- Repair any damaged wiring or connectors in the fuel pressure sensor circuit
- Address any fuel system leaks that may be causing low fuel pressure
- Clear the fault code and test drive the vehicle to ensure the issue has been resolved
How to erase DTC P01C4 on BMW
To erase the DTC P01C4 on a BMW, a diagnostic scanner can be used to clear the fault code from the vehicle’s computer. Once the repair has been completed, the code can be erased to reset the Check Engine Light.
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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