P24B4 – BMW DTC

BMW DTC P24B4 – Particulate Matter Sensor Heater Control Circuit Range/Performance

DTC P24B4 meaning on BMW

DTC P24B4 on a BMW refers to the Particulate Matter Sensor Heater Control Circuit Range/Performance. This diagnostic trouble code indicates that there is an issue with the control circuit of the particulate matter sensor heater, which is responsible for monitoring the level of particulate matter in the exhaust system.

BMW DTC P24B4 symptoms

Symptoms of DTC P24B4 on a BMW may include:

• Check Engine Light illuminated on the dashboard
• Reduced engine performance
• Increased fuel consumption
• Possible black smoke from the exhaust

BMW DTC P24B4 causes

The common causes of DTC P24B4 on a BMW include:

• Faulty particulate matter sensor heater
• Wiring issues in the sensor heater circuit
• Corrosion or poor connections in the sensor heater circuit

BMW DTC P24B4 seriousness

DTC P24B4 should not be ignored as it can lead to increased emissions, reduced fuel efficiency, and potential damage to the engine and exhaust system. It is important to address this issue promptly to prevent further complications.

How to diagnose DTC P24B4 on BMW

To diagnose DTC P24B4 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer
2. Inspect the wiring and connections in the particulate matter sensor heater circuit for any damage or corrosion
3. Test the resistance of the sensor heater to determine if it is functioning properly

How to fix DTC P24B4 on BMW

To fix DTC P24B4 on a BMW, you may need to:

1. Replace the faulty particulate matter sensor heater
2. Repair any damaged wiring or connections in the sensor heater circuit
3. Clean or replace any corroded connectors in the circuit

How to erase DTC P24B4 on BMW

To erase DTC P24B4 on a BMW, you can:

1. Use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer
2. After fixing the underlying issue, drive the vehicle to allow the system to retest and verify that the fault code does not return

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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