AutoCodes – Ford – P0340 2012 Ford Fusion

P0340 2012 Ford Fusion Code - Camshaft Position Sensor Circuit Bank 1 Sensor 1

Quick Answer

The Camshaft Position (CMP) sensor detects the position of the camshaft. Common causes include Faulty Camshaft Position (CMP) 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: P0340 2012 Ford Fusion indicates Camshaft Position Sensor Circuit Bank 1 Sensor 1.
Common causes: Common causes include Faulty Camshaft Position (CMP) 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 12,856

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 29, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0340 2012 Ford Fusion Description

The Camshaft Position (CMP) sensor detects the position of the camshaft. The CMP sensor identifies when piston number 1 is on its compression stroke. A signal is then sent to the Powertrain Control Module (PCM) and used for synchronizing the sequential firing of the fuel injectors. Coil on plug (COP) ignition applications use the CMP signal to select the correct ignition coil to fire. Inline engines with 2 camshafts and with Variable Camshaft Timing (VCT) are equipped with 2 CMP sensors. The second sensor identifies the position of the exhaust camshaft. The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module can no longer detect the signal from the Camshaft Position (CMP) sensor on bank 1.

OBDII Code P0340 2012 Ford Fusion - Camshaft Position Sensor Circuit Bank 1 Sensor 1 - AutoCodes.com — P0340 2012 Ford Fusion Code - Camshaft Position Sensor Circuit Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0340 2012 Ford Fusion?

Faulty Camshaft Position (CMP) Sensor
Camshaft Position Sensor harness is open or shorted
Camshaft Position Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0340 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0340 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 P0340 2012 Ford Fusion Code

1. What are the common symptoms of OBDII code P0340 in a 2012 Ford Fusion?

- Common symptoms include rough idling, engine misfires, poor fuel economy, difficulty starting the engine, and stalling.

2. What does the OBDII code P0340 indicate in a 2012 Ford Fusion?

- The code P0340 signifies a malfunction in the camshaft position sensor circuit for Bank 1 Sensor 1 in the 2012 Ford Fusion.

3. What are the possible causes of OBDII code P0340 in a 2012 Ford Fusion?

- The code P0340 can be triggered by a faulty camshaft position sensor, wiring issues in the sensor circuit, damaged sensor connectors, or a problem with the timing belt.

4. How can I diagnose the OBDII code P0340 in my 2012 Ford Fusion?

- Diagnosing the code P0340 involves checking the camshaft position sensor and its wiring for any visible damage, testing the sensor's voltage, and scanning for related trouble codes.

5. Can I drive my 2012 Ford Fusion with the OBDII code P0340?

- It is not recommended to drive your vehicle with the code P0340 as it can lead to potential engine performance issues and further damage if left unaddressed.

6. How do I repair OBDII code P0340 in a 2012 Ford Fusion?

- Repairing the code P0340 involves replacing the faulty camshaft position sensor, repairing any damaged wiring or connectors, and ensuring proper installation of the new sensor.

7. Is it possible to reset the OBDII code P0340 in a 2012 Ford Fusion without fixing the issue?

- While you can clear the code temporarily, it is crucial to address the underlying problem causing the code to prevent it from reoccurring and potentially causing more severe issues.

8. Will fixing the OBDII code P0340 in my 2012 Ford Fusion improve engine performance?

- Yes, resolving the code P0340 by fixing the camshaft position sensor circuit can lead to improved engine performance, smoother idling, and better fuel efficiency.

9. Can a DIY enthusiast repair the OBDII code P0340 in a 2012 Ford Fusion?

- Depending on your mechanical skills, you may be able to replace the camshaft position sensor yourself, but diagnosing complex wiring issues is best left to professionals.

10. How much does it cost to fix the OBDII code P0340 in a 2012 Ford Fusion at a repair shop?

- The cost of fixing the code P0340 can vary depending on the labor rates and parts involved, but it typically ranges from $150 to $300 for parts and labor.