P2245 Mercury Code - O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1
Quick Answer
The P2245 diagnostic trouble code (DTC) specifically relates to the O2 sensor reference voltage circuit being low on Bank 1 Sensor 1 in a Mercury vehicle. Common causes include Faulty O2 sensor, Damaged wiring or connectors in the reference voltage circuit, Malfunctioning 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
- P2245 Mercury indicates O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1.
- Common causes
- Common causes include Faulty O2 sensor, Damaged wiring or connectors in the reference voltage circuit, Malfunctioning 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 P2245 Mercury Description
The P2245 diagnostic trouble code (DTC) specifically relates to the O2 sensor reference voltage circuit being low on Bank 1 Sensor 1 in a Mercury vehicle. The O2 sensor, also known as the oxygen sensor, plays a crucial role in monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module (ECM) for optimal fuel efficiency and emissions control.
Common Causes of P2245 Mercury
- Faulty O2 sensor
- Damaged wiring or connectors in the reference voltage circuit
- Malfunctioning ECM
- Issues with the vehicle's electrical system
Symptoms of P2245 Mercury
- Check engine light illuminated
- Decreased fuel efficiency
- Engine performance issues such as hesitation or rough idling
- Increased emissions output
- Potential engine misfires or stalling
How to Fix P2245 Mercury
- Use an OBD-II scanner to retrieve the fault code and confirm the issue.
- Inspect the wiring and connectors in the O2 sensor reference voltage circuit for any damage or corrosion.
- Test the O2 sensor for proper operation and replace if necessary.
- Clear the fault code from the ECM memory and perform a test drive to ensure the issue is resolved.
- If the problem persists, further diagnosis may be required to identify any underlying electrical or ECM issues.
Cost to Fix P2245 Mercury
The cost of repairing a P2245 O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. Generally, replacing an O2 sensor can cost between $100 to $300, while addressing wiring or ECM issues may require additional diagnostic time and labor, potentially increasing the total cost to $300 to $500 or more. It's advisable to consult with a trusted mechanic or dealership to get an accurate estimate based on the vehicle's make and model, as well as any additional factors that may affect the repair process.
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