AutoCodesFord – P0346 2012 Ford Fusion

P0346 2012 Ford Fusion Code - Camshaft Position Sensor 'A' Circuit Range/Performance 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
P0346 2012 Ford Fusion indicates Camshaft Position Sensor 'A' Circuit Range/Performance 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.
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Code Popularity 4,428
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0346 2012 Ford Fusion Description

The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
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.
OBDII Code P0346 2012 Ford Fusion - Camshaft Position Sensor 'A' Circuit Range/Performance Bank 2 - AutoCodes.com
P0346 2012 Ford Fusion Code - Camshaft Position Sensor 'A' Circuit Range/Performance Bank 2

What are the Possible Causes of the DTC P0346 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 P0346 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 P0346 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0346 2012 Ford Fusion Code

1. What does the OBDII code P0346 mean on a 2012 Ford Fusion?

P0346 indicates a problem with the camshaft position sensor 'A' circuit range or performance for Bank 2, meaning the sensor is sending signals outside the expected range.

2. What are common symptoms of code P0346 in a 2012 Ford Fusion?

Symptoms may include rough idling, engine misfires, reduced fuel efficiency, difficulty starting, or the illumination of the Check Engine Light.

3. What causes the P0346 code to appear on a 2012 Ford Fusion?

Common causes include a faulty camshaft position sensor, damaged wiring or connectors, timing chain or belt issues, or problems with the powertrain control module (PCM).

4. How can I diagnose a P0346 code on my 2012 Ford Fusion?

Diagnose by scanning for codes, visually inspecting sensor wiring and connections, testing the camshaft position sensor, and checking the timing components for proper alignment.

5. Can I still drive my 2012 Ford Fusion with a P0346 code?

Driving with this code is not recommended, as it can lead to poor performance, engine stalling, or further damage to the engine if not addressed.

6. How do I fix the P0346 code on a 2012 Ford Fusion?

Repairs may include replacing a faulty camshaft position sensor, repairing or replacing damaged wiring, resetting the timing chain or belt, or updating/reprogramming the PCM if needed.

7. Where is the camshaft position sensor 'A' located on a 2012 Ford Fusion?

The camshaft position sensor 'A' for Bank 2 is typically located near the engine's cylinder head on the side corresponding to Bank 2.

8. What tools do I need to fix the P0346 code on a 2012 Ford Fusion?

You may need a diagnostic scanner, multimeter, basic hand tools, and potentially a timing chain alignment tool, depending on the issue.

9. How much does it cost to repair a P0346 code on a 2012 Ford Fusion?

Repair costs can vary, but replacing a camshaft position sensor typically costs $100-$300, including parts and labor. More complex timing or PCM repairs can increase the cost.

10. Could a bad battery cause the P0346 code on a 2012 Ford Fusion?

A weak or failing battery can sometimes contribute to voltage issues affecting the camshaft sensor circuit, so it’s worth checking the battery and charging system during diagnosis.

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