P2247 Mercury Code - O2 Sensor Reference Voltage Circuit Open Bank 2 Sensor 1
Quick Answer
The Front Oxygen Sensor (O2 Sensor 1) is placed into the exhaust manifold. Common causes include Faulty Front Oxygen Sensor Bank 2, Front Oxygen Sensor Bank 2 harness is open or shorted, Front Oxygen Sensor Bank 2 circuit poor electrical connection. 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
- P2247 Mercury indicates O2 Sensor Reference Voltage Circuit Open Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty Front Oxygen Sensor Bank 2, Front Oxygen Sensor Bank 2 harness is open or shorted, Front Oxygen Sensor Bank 2 circuit poor electrical connection.
- 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.
Code P2247 Mercury Description
What are the Possible Causes of the DTC P2247 Mercury?
- Faulty Front Oxygen Sensor Bank 2
- Front Oxygen Sensor Bank 2 harness is open or shorted
- Front Oxygen Sensor Bank 2 circuit poor electrical connection
How to Fix the DTC P2247 Mercury?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2247 Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2247 Mercury Code
What does the OBDII code P2247 mean for a Mercury vehicle?
1. P2247 indicates an issue with the O2 Sensor Reference Voltage Circuit Open for Bank 2 Sensor 1, meaning the sensor is not receiving the proper voltage signal from the ECU. 2.
What are the symptoms of code P2247 in a Mercury vehicle?
Common symptoms include poor fuel economy, rough idling, engine misfires, reduced performance, and the check engine light illuminating. 3.
What causes the P2247 code to appear in Mercury vehicles?
Possible causes include a damaged oxygen sensor, broken or corroded wiring, a faulty ECU, or a poor electrical connection in the O2 sensor circuit. 4.
Which oxygen sensor is affected by P2247 in a Mercury?
P2247 refers to the upstream oxygen sensor (Sensor 1) on Bank 2, which is the side of the engine opposite Bank 1. 5.
Can I drive my Mercury with a P2247 code?
Driving with a P2247 code is not recommended, as it can lead to poor engine performance, increased emissions, and potential damage to other components over time. 6.
How do I diagnose the P2247 code in a Mercury?
Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the sensor and wiring for damage, and testing the reference voltage with a multimeter. 7.
How do I fix the P2247 code on a Mercury vehicle?
Repairs may involve replacing the faulty oxygen sensor, repairing or replacing damaged wiring, cleaning corroded connections, or reprogramming or replacing the ECU. 8.
How much does it cost to fix the P2247 code in a Mercury?
Costs vary depending on the issue, but replacing an O2 sensor typically costs $150–$400, while wiring repairs or ECU replacement could be more expensive. 9.
Can I clear the P2247 code without fixing the problem?
Clearing the code without fixing the underlying issue is not recommended, as the code will likely return and the vehicle's performance will not improve. 10.
What tools do I need to troubleshoot the P2247 code in a Mercury?
You’ll need an OBDII scanner, a multimeter for voltage testing, and possibly a wiring diagram for the specific vehicle model.
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