P23AE
NOx Sensor Circuit Low Bank 1 Sensor 3
P23AE is an OBD-II diagnostic trouble code meaning: NOx Sensor Circuit Low Bank 1 Sensor 3. Common causes: faulty nox sensor, open or short circuit in the sensor circuit. Estimated repair cost: $167–444.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Deteriorating fuel economy
- Increased emissions
- Possible transition to emergency mode
Causes
- Faulty NOx sensor
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with power or grounding of the sensor
- ECU malfunction (rare)
How to Fix
- Check the integrity of the wiring and connectors of the NOx sensor
- Check the supply voltage and grounding of the sensor
- Check the sensor resistance (compare with standards)
- If necessary, replace the NOx sensor
- Reset the error and check if it returns
Related codes
Error P23AE by Vehicle Brand
FAQ
What does the P23AE code mean?
P23AE is an OBD-II diagnostic trouble code that indicates: NOx Sensor Circuit Low Bank 1 Sensor 3
What causes a P23AE error code?
The most common causes of P23AE include: Faulty NOx sensor; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with power or grounding of the sensor.
How do I fix a P23AE diagnostic trouble code?
To fix P23AE: Check the integrity of the wiring and connectors of the NOx sensor. Check the supply voltage and grounding of the sensor. Check the sensor resistance (compare with standards). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P23AE?
Yes, but get it checked soon
How much does it cost to fix P23AE?
The estimated repair cost for P23AE is $167–444. Actual cost depends on your vehicle, location, and labor rates.
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