BMW DTC P2455 – Particulate Filter Pressure Sensor ‘A’ Circuit High
DTC P2455 meaning on BMW
DTC P2455 indicates that there is a high voltage condition in the circuit of the Particulate Filter Pressure Sensor ‘A’ in a BMW vehicle. This sensor is responsible for monitoring the pressure before and after the diesel particulate filter. The Engine Control Module (ECM) uses this information to regulate the regeneration process of the diesel particulate filter.
BMW DTC P2455 symptoms
Symptoms of DTC P2455 in a BMW may include:
- Check Engine Light illuminated
- Reduced engine power
- Increased fuel consumption
- Black smoke from the exhaust
BMW DTC P2455 causes
The common causes of DTC P2455 in a BMW are:
- Defective Particulate Filter Pressure Sensor ‘A’
- Wiring or connector issues in the sensor circuit
- ECM software issues
BMW DTC P2455 seriousness
Ignoring DTC P2455 in a BMW can lead to increased emissions, reduced fuel efficiency, and potential damage to the diesel particulate filter system. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P2455 on BMW
To diagnose DTC P2455 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes.
- Inspect the wiring and connectors of the Particulate Filter Pressure Sensor ‘A’ for any damage or corrosion.
- Test the sensor’s voltage and resistance to determine if it is functioning correctly.
- Check for any software updates for the ECM related to this issue.
How to fix DTC P2455 on BMW
To fix DTC P2455 on a BMW, you can try the following solutions:
- Replace the Particulate Filter Pressure Sensor ‘A’ if it is found to be faulty.
- Repair any damaged wiring or connectors in the sensor circuit.
- Update the ECM software to the latest version.
How to erase DTC P2455 on BMW
To erase DTC P2455 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM memory. After fixing the underlying issue causing the fault code, you can then erase the code 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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