P2223
NOx Sensor Heater Sense Circuit Low Bank 2
P2223 is an OBD-II diagnostic trouble code meaning: NOx Sensor Heater Sense Circuit Low Bank 2. Common causes: open or short circuit in nox sensor heating circuit, nox sensor malfunction. Estimated repair cost: $167–333.
Symptoms
- Check Engine Light Is On
- Increased fuel consumption
- Reduced engine power
- Dips during acceleration
- Unstable idling
Causes
- Open or short circuit in NOx sensor heating circuit
- NOx sensor malfunction
- Problems with power or grounding of the circuit
- Engine control unit malfunction
- Corroded contacts or damaged wiring
How to Fix
- Check the integrity of the wiring and contacts in the heating circuit of the NOx sensor
- Check the supply voltage and resistance of the heating element
- Check NOx sensor for damage
- Replace NOx sensor if necessary
- Check and, if necessary, update the software of the control unit
Related codes
Error P2223 by Vehicle Brand
FAQ
What does the P2223 code mean?
P2223 is an OBD-II diagnostic trouble code that indicates: NOx Sensor Heater Sense Circuit Low Bank 2
What causes a P2223 error code?
The most common causes of P2223 include: Open or short circuit in NOx sensor heating circuit; NOx sensor malfunction; Problems with power or grounding of the circuit; Engine control unit malfunction.
How do I fix a P2223 diagnostic trouble code?
To fix P2223: Check the integrity of the wiring and contacts in the heating circuit of the NOx sensor. Check the supply voltage and resistance of the heating element. Check NOx sensor for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2223?
Yes, but get it checked soon
How much does it cost to fix P2223?
The estimated repair cost for P2223 is $167–333. Actual cost depends on your vehicle, location, and labor rates.
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