P23C1
NOx Sensor Performance - Sensing Element Bank 1 Sensor 3
P23C1 is an OBD-II diagnostic trouble code meaning: NOx Sensor Performance - Sensing Element Bank 1 Sensor 3. Common causes: nox sensor malfunction, damaged nox sensor wiring or connectors. Estimated repair cost: $89–278.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable engine operation at idle
- Possible exhaust odor
Causes
- NOx sensor malfunction
- Damaged NOx sensor wiring or connectors
- Exhaust leak
- Malfunction of the catalytic converter
- Problems with the engine ECU (electronic control unit)
How to Fix
- Check the NOx sensor wiring and connectors for damage or corrosion.
- Check the NOx sensor to specifications using a multimeter.
- Replace the NOx sensor if it is faulty.
- Check the catalytic converter for damage or blockage.
- Check the engine ECU for errors and update the software if necessary.
Related codes
Error P23C1 by Vehicle Brand
FAQ
What does the P23C1 code mean?
P23C1 is an OBD-II diagnostic trouble code that indicates: NOx Sensor Performance - Sensing Element Bank 1 Sensor 3
What causes a P23C1 error code?
The most common causes of P23C1 include: NOx sensor malfunction; Damaged NOx sensor wiring or connectors; Exhaust leak; Malfunction of the catalytic converter.
How do I fix a P23C1 diagnostic trouble code?
To fix P23C1: Check the NOx sensor wiring and connectors for damage or corrosion.. Check the NOx sensor to specifications using a multimeter.. Replace the NOx sensor if it is faulty.. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P23C1?
Yes, but get it checked soon
How much does it cost to fix P23C1?
The estimated repair cost for P23C1 is $89–278. Actual cost depends on your vehicle, location, and labor rates.
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