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P1900 2010 Ford Fusion Code - Output Shaft Speed Circuit Intermittent Malfunction

Quick Answer

The P1900 diagnostic trouble code (DTC) for a 2010 Ford Fusion indicates an intermittent malfunction in the output shaft speed circuit. Common causes include Faulty output shaft speed sensor, Wiring harness issues, Loose or corroded connections in the circuit. 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
P1900 2010 Ford Fusion indicates Output Shaft Speed Circuit Intermittent Malfunction.
Common causes
Common causes include Faulty output shaft speed sensor, Wiring harness issues, Loose or corroded connections in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P1900 2010 Ford Fusion Description

The P1900 diagnostic trouble code (DTC) for a 2010 Ford Fusion indicates an intermittent malfunction in the output shaft speed circuit. The output shaft speed sensor is a crucial component of the vehicle's transmission system, responsible for monitoring the speed of the output shaft. This information is essential for the transmission control module to determine the appropriate gear shifting and ensure smooth operation of the transmission.

OBDII Code P1900 2010 Ford Fusion - Output Shaft Speed Circuit Intermittent Malfunction
P1900 2010 Ford Fusion Code - Output Shaft Speed Circuit Intermittent Malfunction

Common Causes of P1900 2010 Ford Fusion

  1. Faulty output shaft speed sensor
  2. Wiring harness issues
  3. Loose or corroded connections in the circuit
  4. Malfunctioning transmission control module
  5. Internal transmission problems

Symptoms of P1900 2010 Ford Fusion

  1. Harsh shifting between gears
  2. Delayed gear engagement
  3. Slipping gears
  4. Illumination of the Check Engine Light
  5. Transmission overheating

How to Fix P1900 2010 Ford Fusion

  1. Begin by conducting a thorough inspection of the output shaft speed sensor and its wiring harness for any visible damage or corrosion.
  2. Test the output shaft speed sensor using a multimeter to check for proper resistance and signal output.
  3. Inspect the connections in the circuit and ensure they are secure and free of corrosion.
  4. If the sensor is faulty, replace it with a new, OEM-quality sensor.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1900 2010 Ford Fusion

The typical repair costs for addressing a P1900 code on a 2010 Ford Fusion can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

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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 P1900 2010 Ford Fusion Code

1. What are the common symptoms of an Output Shaft Speed Circuit Intermittent Malfunction (P1900) in a 2010 Ford Fusion?

- Common symptoms include erratic shifting, transmission slipping, or the vehicle going into limp mode.

2. What are the possible causes of a P1900 code in a 2010 Ford Fusion?

- The P1900 code can be caused by issues with the output shaft speed sensor, damaged wiring or connectors, or a faulty transmission control module (TCM).

3. How can I diagnose a P1900 code in my 2010 Ford Fusion?

- To diagnose a P1900 code, you can use an OBDII scanner to read the code, inspect the wiring and connectors for any damage, and test the output shaft speed sensor for proper functionality.

4. Can a P1900 code in a 2010 Ford Fusion cause damage if ignored?

- Ignoring a P1900 code can potentially lead to further damage to the transmission or other drivetrain components, so it is recommended to address the issue promptly.

5. How can I repair a P1900 code in my 2010 Ford Fusion?

- Repairing a P1900 code may involve replacing the output shaft speed sensor, repairing damaged wiring or connectors, or reprogramming the TCM. It is advisable to consult a professional mechanic for proper diagnosis and repair.

6. Is it safe to drive my 2010 Ford Fusion with a P1900 code?

- It is not recommended to drive your vehicle with a P1900 code, as it can cause transmission issues that may impact the safety and performance of the vehicle.

7. How much does it cost to fix a P1900 code in a 2010 Ford Fusion?

- The cost of fixing a P1900 code can vary depending on the exact cause of the issue and the labor rates in your area. It is best to get a diagnostic from a mechanic to determine the cost accurately.

8. Can I reset a P1900 code in my 2010 Ford Fusion by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it will not fix the underlying issue causing the P1900 code. It is important to diagnose and repair the problem to prevent the code from returning.

9. Will a P1900 code in a 2010 Ford Fusion affect fuel efficiency?

- A P1900 code may indirectly impact fuel efficiency if it causes transmission problems that affect engine performance. Resolving the code promptly can help maintain optimal fuel efficiency.

10. How long does it take to repair a P1900 code in a 2010 Ford Fusion?

- The repair time for a P1900 code can vary depending on the exact cause of the issue and the availability of parts. It is advisable to consult a mechanic for an estimate of the repair time.

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