P1286
Air Fuel Ratio Sensor 1 Circuit High Voltage Detected Bank 2
P1286 is an OBD-II diagnostic trouble code meaning: Air Fuel Ratio Sensor 1 Circuit High Voltage Detected Bank 2. Common causes: air-fuel ratio sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $39–89.
Symptoms
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminated
- Unstable engine idling
- Increased emissions of harmful substances
Causes
- Air-fuel ratio sensor malfunction
- Open or short circuit in the sensor circuit
- Poor connection in sensor connectors
- Wiring Harness Problems
- ECU malfunction
How to Fix
- Check the continuity of the AFR sensor circuit
- Check sensor connectors and connections
- Check the resistance and output voltage of the sensor
- Replace AFR sensor if necessary
- Check and, if necessary, replace the computer
Related codes
Error P1286 by Vehicle Brand
FAQ
What does the P1286 code mean?
P1286 is an OBD-II diagnostic trouble code that indicates: Air Fuel Ratio Sensor 1 Circuit High Voltage Detected Bank 2
What causes a P1286 error code?
The most common causes of P1286 include: Air-fuel ratio sensor malfunction; Open or short circuit in the sensor circuit; Poor connection in sensor connectors; Wiring Harness Problems.
How do I fix a P1286 diagnostic trouble code?
To fix P1286: Check the continuity of the AFR sensor circuit. Check sensor connectors and connections. Check the resistance and output voltage of the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1286?
Yes, but get it checked soon
How much does it cost to fix P1286?
The estimated repair cost for P1286 is $39–89. Actual cost depends on your vehicle, location, and labor rates.
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