BMW DTC P24E2 – NH3 Sensor Circuit Range/Performance
DTC P24E2 meaning on BMW
DTC P24E2 on a BMW refers to an issue with the NH3 (ammonia) sensor circuit, indicating a range/performance problem. The NH3 sensor is a crucial component of the vehicle’s emissions control system, responsible for monitoring the level of ammonia in the exhaust gases.
BMW DTC P24E2 symptoms
Symptoms of DTC P24E2 on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Possible ammonia smell from the exhaust
BMW DTC P24E2 causes
Common causes of DTC P24E2 on a BMW include:
- Malfunctioning NH3 sensor
- Wiring or connector issues in the NH3 sensor circuit
- Exhaust system leaks
- Software or calibration issues
BMW DTC P24E2 seriousness
The seriousness of DTC P24E2 on a BMW should not be ignored, as it can lead to increased emissions, reduced fuel efficiency, and potential damage to the catalytic converter and other emission control components. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P24E2 on BMW
To diagnose DTC P24E2 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 NH3 sensor and its wiring for any visible damage or corrosion
- Check for exhaust leaks or other issues in the emissions system
- Perform a sensor test to determine the functionality of the NH3 sensor
How to fix DTC P24E2 on BMW
To fix DTC P24E2 on a BMW, the following steps may be taken:
- Replace the NH3 sensor if it is found to be faulty
- Repair any damaged wiring or connectors in the NH3 sensor circuit
- Address any exhaust leaks or other issues in the emissions system
- Update the software or perform calibration if necessary
How to erase DTC P24E2 on BMW
To erase DTC P24E2 on a BMW, the fault codes can be cleared using a diagnostic scanner. After the necessary repairs have been made, the codes can be reset to turn off the Check Engine Light and ensure that the issue 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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