BMW DTC P24B3 – Particulate Matter Sensor Heater Control Circuit/Open
DTC P24B3 meaning on BMW
DTC P24B3 on a BMW indicates an issue with the Particulate Matter Sensor Heater Control Circuit being open. This means that the circuit that controls the heater for the particulate matter sensor is not functioning properly, leading to potential inaccuracies in the sensor readings.
BMW DTC P24B3 symptoms
Symptoms of DTC P24B3 on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Increased fuel consumption
- Possible regeneration issues for the diesel particulate filter
BMW DTC P24B3 causes
Common causes of DTC P24B3 on a BMW include:
- Faulty particulate matter sensor heater
- Wiring or connector issues in the heater control circuit
- Software glitches in the engine control module
BMW DTC P24B3 seriousness
The seriousness of DTC P24B3 on a BMW depends on the driving conditions and the extent of the issue. Ignoring this fault can lead to increased emissions, reduced fuel efficiency, and potential damage to the diesel particulate filter system.
How to diagnose DTC P24B3 on BMW
To diagnose DTC P24B3 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the wiring and connectors related to the particulate matter sensor heater
- Test the resistance of the sensor heater to determine if it is faulty
- Check for any software updates for the engine control module
How to fix DTC P24B3 on BMW
To fix DTC P24B3 on a BMW, you can try the following:
- Replace the faulty particulate matter sensor heater
- Repair any damaged wiring or connectors in the heater control circuit
- Update the engine control module software to the latest version
How to erase DTC P24B3 on BMW
To erase DTC P24B3 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the engine control module. Once the issue has been fixed, clearing the codes will 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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