P2246 Mercury Code - O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1
Quick Answer
The O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1 diagnostic trouble code (DTC) P2246 in a Mercury vehicle indicates that there is an issue with the oxygen sensor located in bank 1, sensor 1. Common causes include Faulty oxygen sensor, Short circuit in sensor wiring, Issues with the ECM. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P2246 Mercury indicates O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1.
- Common causes
- Common causes include Faulty oxygen sensor, Short circuit in sensor wiring, Issues with the ECM.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code P2246 Mercury Description
The O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1 diagnostic trouble code (DTC) P2246 in a Mercury vehicle indicates that there is an issue with the oxygen sensor located in bank 1, sensor 1. This sensor is responsible for measuring the oxygen content in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.
Common Causes of P2246 Mercury
- Faulty oxygen sensor
- Short circuit in sensor wiring
- Issues with the ECM
- Power supply problems
- Corrosion or damage to sensor connectors
Symptoms of P2246 Mercury
- Decreased fuel efficiency
- Rough idling or stalling
- Check Engine Light illuminated
- Increased emissions output
- Reduced engine power
How to Fix P2246 Mercury
- Begin by diagnosing the issue with a scan tool to confirm the P2246 code and pinpoint the exact cause.
- Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as needed.
- Test the oxygen sensor for proper function using a multimeter or oscilloscope. Replace the sensor if it is faulty.
- Clear the DTC and reset the ECM to see if the issue is resolved.
- Perform a test drive to ensure the repair was successful and the code does not return.
Cost to Fix P2246 Mercury
The cost of repairing the O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1 issue in a Mercury vehicle can vary depending on the specific cause of the problem. On average, the cost of replacing an oxygen sensor ranges from $200 to $300, including parts and labor. Additional costs may apply if wiring or connectors need to be replaced. It's essential to consult with a qualified mechanic to get an accurate estimate based on your vehicle's make and model, as well as any additional repairs that may be necessary. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on location and shop rates.
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