P2247
O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1
P2247 is an OBD-II diagnostic trouble code meaning: O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1. Common causes: open or short circuit in the sensor circuit, poor contact in the sensor connector. Estimated repair cost: $28–89.
Symptoms
- Check Engine Light Is On
- Increased fuel consumption
- Reduced engine power
- Unstable engine operation at idle
- Increase in harmful emissions
Causes
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Malfunction of the oxygen sensor itself
- Wiring harness damage
- Problems with the engine control unit
How to Fix
- Check the integrity of the sensor wires and connectors
- Measure the resistance and voltage in the sensor circuit
- Check the reference voltage at the sensor connector
- If necessary, replace the oxygen sensor
- Clear error codes and check system operation
Related codes
Error P2247 by Vehicle Brand
FAQ
What does the P2247 code mean?
P2247 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Reference Voltage Circuit/Open Bank 2 Sensor 1
What causes a P2247 error code?
The most common causes of P2247 include: Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Malfunction of the oxygen sensor itself; Wiring harness damage.
How do I fix a P2247 diagnostic trouble code?
To fix P2247: Check the integrity of the sensor wires and connectors. Measure the resistance and voltage in the sensor circuit. Check the reference voltage at the sensor connector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2247?
Yes, but get it checked soon
How much does it cost to fix P2247?
The estimated repair cost for P2247 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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