AutoCodes – Ford – P1900 2009 Ford Fusion

P1900 2009 Ford Fusion Code - Output Shaft Speed Circuit Intermittent Malfunction

Quick Answer

The Output Shaft Speed (OSS) sensor provides the Powertrain Control Module (PCM) with information about the rotational speed of an output shaft. Common causes include Output Shaft Speed (OSS) not installed properly, Faulty Output Shaft Speed sensor, Output Shaft Speed sensor harness is open or shorted. 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 2009 Ford Fusion indicates Output Shaft Speed Circuit Intermittent Malfunction.
Common causes: Common causes include Output Shaft Speed (OSS) not installed properly, Faulty Output Shaft Speed sensor, Output Shaft Speed sensor harness is open or shorted.
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 1,829

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1900 2009 Ford Fusion Description

The Output Shaft Speed (OSS) sensor provides the Powertrain Control Module (PCM) with information about the rotational speed of an output shaft. The PCM uses the information to control and diagnose powertrain behavior. In some applications, the sensor is also used as the source of vehicle speed. The sensor may be physically located in different places on the vehicle, depending upon the specific application. The design of each speed sensor is unique and depends on which powertrain control feature uses the information that is generated. The Diagnostic Trouble Code (DTC) will set when the OSS sensor signal to the PCM is irregular or interrupted.

OBDII Code P1900 2009 Ford Fusion - Output Shaft Speed Circuit Intermittent Malfunction - AutoCodes.com — P1900 2009 Ford Fusion Code - Output Shaft Speed Circuit Intermittent Malfunction

What does this mean?

What are the Possible Causes of the DTC P1900 2009 Ford Fusion?

Output Shaft Speed (OSS) not installed properly
Faulty Output Shaft Speed sensor
Output Shaft Speed sensor harness is open or shorted
Output Shaft Speed sensor circuit poor electrical connection

How to Fix the DTC P1900 2009 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 P1900 2009 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.

Need more information about the P1900 2009 Ford Fusion code?

Need more information on how to fix the P1900 2009 Ford Fusion code? Get Access to Factory Service Manuals

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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 2009 Ford Fusion Code

1. What are the common symptoms of OBDII code P1900 in a 2009 Ford Fusion?

- Common symptoms include erratic shifting, transmission slippage, and the vehicle going into limp mode.

2. What can cause the Output Shaft Speed Circuit Intermittent Malfunction in a 2009 Ford Fusion?

- Possible causes include a faulty output shaft speed sensor, damaged wiring or connectors, or issues with the transmission control module.

3. How can I diagnose the Output Shaft Speed Circuit Intermittent Malfunction on my 2009 Ford Fusion?

- Diagnosis involves using a scan tool to read the OBDII code, checking the output shaft speed sensor and its wiring for damage, and testing the transmission control module.

4. Can a bad output shaft speed sensor be repaired, or does it need to be replaced in a 2009 Ford Fusion?

- In most cases, a faulty output shaft speed sensor will need to be replaced rather than repaired to resolve the P1900 code.

5. Are there any DIY repair tips for fixing the Output Shaft Speed Circuit Intermittent Malfunction on a 2009 Ford Fusion?

- DIY repair tips include checking and cleaning the sensor's connectors, ensuring proper wiring connections, and following a service manual for accurate diagnosis and repair.

6. What are the potential risks of ignoring the P1900 code in a 2009 Ford Fusion?

- Ignoring the P1900 code can lead to further transmission issues, reduced fuel efficiency, and potential damage to other transmission components over time.

7. How much does it typically cost to repair the Output Shaft Speed Circuit Intermittent Malfunction in a 2009 Ford Fusion?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $500 for parts and labor.

8. Can I continue driving my 2009 Ford Fusion with the P1900 code present?

- It is not recommended to continue driving with the P1900 code, as it can lead to more serious transmission problems and potential safety hazards.

9. Will resetting the OBDII code clear the Output Shaft Speed Circuit Intermittent Malfunction in a 2009 Ford Fusion?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the P1900 code to reappear.

10. How long does it take to repair the Output Shaft Speed Circuit Intermittent Malfunction on a 2009 Ford Fusion?

- Repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take a few hours to a full day for a professional mechanic to diagnose and fix the problem.