P0390 2012 Ford Fusion Code - Camshaft Position Sensor 'B' Circuit Bank 2
Quick Answer
The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0390 2012 Ford Fusion indicates Camshaft Position Sensor 'B' Circuit Bank 2.
- Common causes
- Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0390 2012 Ford Fusion Description
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
What are the Possible Causes of the DTC P0390 2012 Ford Fusion?
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
How to Fix the DTC P0390 2012 Ford Fusion?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0390 2012 Ford Fusion 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 P0390 2012 Ford Fusion Code
1. What does the OBDII code P0390 mean on a 2012 Ford Fusion?
P0390 indicates an issue with the Camshaft Position Sensor 'B' Circuit on Bank 2, which means the engine control module (ECM) is detecting an abnormal signal or no signal from the sensor.
2. What are the symptoms of the P0390 code on a 2012 Ford Fusion?
Common symptoms include rough idling, reduced engine performance, stalling, difficulty starting, and the check engine light being illuminated.
3. What causes the P0390 code to appear in a 2012 Ford Fusion?
Possible causes include a faulty camshaft position sensor, damaged wiring or connectors, a timing issue, or a malfunctioning ECM.
4. Which sensor is affected by the P0390 code in a 2012 Ford Fusion?
The code refers to the Camshaft Position Sensor 'B' on Bank 2, which is typically the side of the engine opposite Cylinder 1.
5. How do I diagnose a P0390 code on my 2012 Ford Fusion?
Start by checking the wiring and connectors for damage or corrosion, inspecting the camshaft position sensor for faults, and verifying proper timing alignment.
6. Can a P0390 code damage my 2012 Ford Fusion's engine?
While it may not cause immediate damage, ignoring the code can lead to poor engine performance, reduced fuel efficiency, and potential long-term issues if not addressed.
7. How do I fix a P0390 code on a 2012 Ford Fusion?
Repair options include replacing the faulty camshaft position sensor, repairing or replacing damaged wiring, resetting the ECM, or addressing timing chain or gear issues if necessary.
8. How much does it cost to fix the P0390 code on a 2012 Ford Fusion?
Replacing a camshaft position sensor typically costs between $100 and $300, including parts and labor. Additional repairs for wiring or timing issues may increase costs.
9. Can I drive my 2012 Ford Fusion with a P0390 code?
Driving with a P0390 code is possible but not recommended, as it may lead to further engine issues or unsafe driving conditions due to poor performance.
10. Can a dead battery cause the P0390 code on a 2012 Ford Fusion?
A weak or dead battery is unlikely to directly cause a P0390 code, but electrical issues from a failing battery could potentially interfere with the sensor’s signal.
Discuss the causes and fixes for P0390 2012 Ford Fusion OBDII Code
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