BMW DTC P24C4 – EGR Cooler Bypass Position Sensor Exceeded Learning Limit Bank 1
DTC P24C4 meaning on BMW
DTC P24C4 on a BMW indicates that the EGR (Exhaust Gas Recirculation) Cooler Bypass Position Sensor for Bank 1 has exceeded its learning limit. This means that the sensor has detected a deviation from the expected values, potentially affecting the performance of the EGR system.
BMW DTC P24C4 symptoms
Symptoms of DTC P24C4 on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Increased fuel consumption
- Engine stalling or rough idling
BMW DTC P24C4 causes
The possible causes of DTC P24C4 on a BMW include:
- Faulty EGR Cooler Bypass Position Sensor
- Wiring or connector issues in the sensor circuit
- Carbon buildup in the EGR system
- Software or calibration issues
BMW DTC P24C4 seriousness
DTC P24C4 should not be ignored as it can lead to reduced engine efficiency and potential drivability issues. Continuing to drive with this fault may cause further damage to the engine components and emission control system.
How to diagnose DTC P24C4 on BMW
To diagnose DTC P24C4 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes and freeze frame data
- Inspect the EGR Cooler Bypass Position Sensor and its wiring for any visible damage
- Check for carbon buildup in the EGR system
- Perform a sensor calibration or relearn procedure if necessary
How to fix DTC P24C4 on BMW
To fix DTC P24C4 on a BMW, the following steps may be taken:
- Replace the faulty EGR Cooler Bypass Position Sensor
- Repair any damaged wiring or connectors in the sensor circuit
- Clean out any carbon deposits in the EGR system
- Update the engine control module software if needed
How to erase DTC P24C4 on BMW
To erase DTC P24C4 on a BMW, the fault codes can be cleared using a diagnostic scanner. After the repair or maintenance procedures have been completed, the codes can be reset to see if the issue has been resolved. It is important to ensure that the underlying cause of the fault has been addressed before clearing the codes.
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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