P24D3 – BMW DTC

BMW DTC P24D3 – Reductant Heater ‘B’ Sense Circuit

DTC P24D3 meaning on BMW

DTC P24D3 for BMW refers to the Reductant Heater ‘B’ Sense Circuit. This diagnostic trouble code indicates an issue with the circuit that monitors the operation of the Reductant Heater ‘B’ in the vehicle’s emissions control system.

BMW DTC P24D3 symptoms

Symptoms of DTC P24D3 on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Possible increase in emissions

BMW DTC P24D3 causes

Common causes of DTC P24D3 on a BMW include:

• Faulty Reductant Heater ‘B’
• Wiring or connector issues in the sense circuit
• Defective temperature sensor

BMW DTC P24D3 seriousness

DTC P24D3 should not be ignored as it can lead to increased emissions and potential engine performance issues. While the vehicle may still be operable, it is recommended to address this code promptly to prevent further complications.

How to diagnose DTC P24D3 on BMW

To diagnose DTC P24D3 on a BMW, you can perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and any related freeze frame data
2. Inspect the Reductant Heater ‘B’ and its wiring for any visible damage
3. Check the temperature sensor for proper operation
4. Perform a continuity test on the sense circuit to identify any open or short circuits

How to fix DTC P24D3 on BMW

To fix DTC P24D3 on a BMW, you can try the following solutions:

1. Replace the faulty Reductant Heater ‘B’
2. Repair any damaged wiring or connectors in the sense circuit
3. Replace the defective temperature sensor
4. Clear the fault code and perform a test drive to ensure the issue is resolved

How to erase DTC P24D3 on BMW

To erase DTC P24D3 on a BMW, you can use a diagnostic scanner to clear the fault code from the vehicle’s memory. After addressing the underlying issue and making the necessary repairs, clearing the code will reset the Check Engine Light and ensure the system is functioning properly.

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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