P0163
O2 Sensor Circuit Low Voltage Bank 2 Sensor 3
P0163 is an OBD-II diagnostic trouble code meaning: O2 Sensor Circuit Low Voltage Bank 2 Sensor 3. Common causes: oxygen sensor malfunction (bank 2 sensor 3), open or short circuit in the sensor wiring harness. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Reduced engine efficiency
- Increased emissions of harmful substances
Causes
- Oxygen sensor malfunction (Bank 2 Sensor 3)
- Open or short circuit in the sensor wiring harness
- Poor contact in the sensor connector
- ECU malfunction
- Sensor circuit grounding problems
How to Fix
- Check the integrity of the sensor wiring harness
- Check connections and contacts in the sensor connector
- Check the voltage in the sensor circuit using a multimeter
- Replace the oxygen sensor if necessary
- Check and, if necessary, replace the computer
Related codes
Error P0163 by Vehicle Brand
FAQ
What does the P0163 code mean?
P0163 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Circuit Low Voltage Bank 2 Sensor 3
What causes a P0163 error code?
The most common causes of P0163 include: Oxygen sensor malfunction (Bank 2 Sensor 3); Open or short circuit in the sensor wiring harness; Poor contact in the sensor connector; ECU malfunction.
How do I fix a P0163 diagnostic trouble code?
To fix P0163: Check the integrity of the sensor wiring harness. Check connections and contacts in the sensor connector. Check the voltage in the sensor circuit using a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0163?
Limited driving only, diagnose soon
How much does it cost to fix P0163?
The estimated repair cost for P0163 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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