P24B4
Particulate Matter Sensor Heater Control Circuit Range/Performance
P24B4 is an OBD-II diagnostic trouble code meaning: Particulate Matter Sensor Heater Control Circuit Range/Performance. Common causes: open or short circuit in the heater circuit, particulate filter sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Problems with diesel particulate filter regeneration
- Unstable engine idling
Causes
- Open or short circuit in the heater circuit
- Particulate filter sensor malfunction
- Problems with the heating circuit relay or fuse
- Engine ECU malfunction
- Oxidation of contacts in circuit connectors
How to Fix
- Check the integrity of the heater circuit
- Check the resistance of the heating element
- Inspect connectors and contacts for corrosion
- Check circuit fuses and relays
- If necessary, replace the diesel particulate filter sensor
Related codes
Error P24B4 by Vehicle Brand
FAQ
What does the P24B4 code mean?
P24B4 is an OBD-II diagnostic trouble code that indicates: Particulate Matter Sensor Heater Control Circuit Range/Performance
What causes a P24B4 error code?
The most common causes of P24B4 include: Open or short circuit in the heater circuit; Particulate filter sensor malfunction; Problems with the heating circuit relay or fuse; Engine ECU malfunction.
How do I fix a P24B4 diagnostic trouble code?
To fix P24B4: Check the integrity of the heater circuit. Check the resistance of the heating element. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P24B4?
Yes, but get it checked soon
How much does it cost to fix P24B4?
The estimated repair cost for P24B4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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