P248A
Reductant Heater A Sense Circuit Low
P248A is an OBD-II diagnostic trouble code meaning: Reductant Heater A Sense Circuit Low. Common causes: open or short circuit in the heater circuit, reagent heating element malfunction. Estimated repair cost: $28–167.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased consumption of AdBlue reagent
- SCR system error message on dashboard
- Possible transition to emergency mode
Causes
- Open or short circuit in the heater circuit
- Reagent heating element malfunction
- Problems with the relay or circuit fuse
- SCR control module malfunction
- Poor contact in circuit connectors
How to Fix
- Check the integrity of the fuses and relays of the heater circuit
- Diagnose the resistance of the heating element
- Check the continuity and resistance of the circuit wires
- Inspect connectors for oxidation or damage
- If necessary, replace the heating element or SCR control module
Related codes
Error P248A by Vehicle Brand
FAQ
What does the P248A code mean?
P248A is an OBD-II diagnostic trouble code that indicates: Reductant Heater A Sense Circuit Low
What causes a P248A error code?
The most common causes of P248A include: Open or short circuit in the heater circuit; Reagent heating element malfunction; Problems with the relay or circuit fuse; SCR control module malfunction.
How do I fix a P248A diagnostic trouble code?
To fix P248A: Check the integrity of the fuses and relays of the heater circuit. Diagnose the resistance of the heating element. Check the continuity and resistance of the circuit wires. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P248A?
Yes, but get it checked soon
How much does it cost to fix P248A?
The estimated repair cost for P248A is $28–167. Actual cost depends on your vehicle, location, and labor rates.
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