P11DC
NOx Sensor 2 Current Performance
P11DC is an OBD-II diagnostic trouble code meaning: NOx Sensor 2 Current Performance. Common causes: nox 2 sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable engine idling
- Dips during acceleration
Causes
- NOx 2 sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Sensing element is dirty or damaged
- Problems with the SCR system
How to Fix
- Check the integrity of the sensor wiring and connectors
- Clean sensor connector contacts
- Check sensor readings using diagnostic equipment
- Replace NOx 2 sensor if necessary
- Check the operation of the SCR system
Related codes
FAQ
What does the P11DC code mean?
P11DC is an OBD-II diagnostic trouble code that indicates: NOx Sensor 2 Current Performance
What causes a P11DC error code?
The most common causes of P11DC include: NOx 2 sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Sensing element is dirty or damaged.
How do I fix a P11DC diagnostic trouble code?
To fix P11DC: Check the integrity of the sensor wiring and connectors. Clean sensor connector contacts. Check sensor readings using diagnostic equipment. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P11DC?
Yes, but get it checked soon
How much does it cost to fix P11DC?
The estimated repair cost for P11DC is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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