P11D5
NOx Sensor 2 Exceeded Minimum Learning Limit
P11D5 is an OBD-II diagnostic trouble code meaning: NOx Sensor 2 Exceeded Minimum Learning Limit. Common causes: faulty nox sensor in the second bank, problems with wiring to the nox sensor. Estimated repair cost: $167–333.
Symptoms
- Check Engine Light Is On
- Deterioration in acceleration dynamics
- Increased fuel consumption
- The car may go into emergency mode
- Possible problems when passing technical inspection
Causes
- Faulty NOx sensor in the second bank
- Problems with wiring to the NOx sensor
- NOx sensor contamination
- Low fuel quality
- Problems with the SCR (Selective Catalytic Reduction) system
How to Fix
- Check the condition of the wiring to the NOx sensor
- Clean sensor connector contacts
- Check the sensor readings using a scanner
- If necessary, replace the NOx sensor of the second bank
- Flash or update engine ECU software
Related codes
FAQ
What does the P11D5 code mean?
P11D5 is an OBD-II diagnostic trouble code that indicates: NOx Sensor 2 Exceeded Minimum Learning Limit
What causes a P11D5 error code?
The most common causes of P11D5 include: Faulty NOx sensor in the second bank; Problems with wiring to the NOx sensor; NOx sensor contamination; Low fuel quality.
How do I fix a P11D5 diagnostic trouble code?
To fix P11D5: Check the condition of the wiring to the NOx sensor. Clean sensor connector contacts. Check the sensor readings using a scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P11D5?
Yes, but get it checked soon
How much does it cost to fix P11D5?
The estimated repair cost for P11D5 is $167–333. Actual cost depends on your vehicle, location, and labor rates.
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