P24D3
Reductant Heater B Sense Circuit
P24D3 is an OBD-II diagnostic trouble code meaning: Reductant Heater B Sense Circuit. Common causes: open or short circuit in the heater circuit, heater temperature sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Deterioration of exhaust characteristics
- Possible SCR error messages
- Increased fuel consumption
Causes
- Open or short circuit in the heater circuit
- Heater temperature sensor malfunction
- Wiring harness damage
- Problems with the SCR control unit
- Failure of the heating element itself
How to Fix
- Check the integrity of the heater circuit
- Test the heater temperature sensor
- Inspect the wiring harness for damage
- Check the resistance of the heating element
- Scan the SCR control unit for additional errors
Related codes
Error P24D3 by Vehicle Brand
FAQ
What does the P24D3 code mean?
P24D3 is an OBD-II diagnostic trouble code that indicates: Reductant Heater B Sense Circuit
What causes a P24D3 error code?
The most common causes of P24D3 include: Open or short circuit in the heater circuit; Heater temperature sensor malfunction; Wiring harness damage; Problems with the SCR control unit.
How do I fix a P24D3 diagnostic trouble code?
To fix P24D3: Check the integrity of the heater circuit. Test the heater temperature sensor. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P24D3?
Yes, but get it checked soon
How much does it cost to fix P24D3?
The estimated repair cost for P24D3 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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