AutoCodes – Ford – P1900 1998 Ford F150

P1900 1998 Ford F150 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 1998 Ford F150 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 2,254

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 1998 Ford F150 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 1998 Ford F150 - Output Shaft Speed Circuit Intermittent Malfunction - AutoCodes.com — P1900 1998 Ford F150 Code - Output Shaft Speed Circuit Intermittent Malfunction

What does this mean?

What are the Possible Causes of the DTC P1900 1998 Ford F150?

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 1998 Ford F150?

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 1998 Ford F150 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 P1900 1998 Ford F150 Code

1. What are the common symptoms of OBDII code P1900 on a 1998 Ford F150?

- Common symptoms include erratic shifting, hesitation during acceleration, and the transmission going into limp mode.

2. What does the Output Shaft Speed Circuit Intermittent Malfunction mean for a 1998 Ford F150?

- This code indicates a problem with the output shaft speed sensor or the circuit that monitors the speed of the transmission output shaft.

3. What are the possible causes of the Output Shaft Speed Circuit Intermittent Malfunction on a 1998 Ford F150?

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

4. How can I diagnose the Output Shaft Speed Circuit Intermittent Malfunction on my 1998 Ford F150?

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

5. Can I continue driving my 1998 Ford F150 with the Output Shaft Speed Circuit Intermittent Malfunction?

- It is not recommended to continue driving the vehicle with this code as it can lead to further transmission damage and safety hazards.

6. How can I repair the Output Shaft Speed Circuit Intermittent Malfunction on my 1998 Ford F150?

- Repair may involve replacing the output shaft speed sensor, repairing or replacing damaged wiring or connectors, resetting the transmission control module, or addressing any internal transmission issues.

7. Will resetting the OBDII code P1900 on a 1998 Ford F150 fix the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the Output Shaft Speed Circuit Intermittent Malfunction.

8. Is the Output Shaft Speed Sensor easy to replace on a 1998 Ford F150?

- The difficulty of replacing the output shaft speed sensor can vary depending on the vehicle's configuration, but it typically involves accessing the sensor near the transmission and unbolting it for replacement.

9. How much does it cost to repair the Output Shaft Speed Circuit Intermittent Malfunction on a 1998 Ford F150?

- Repair costs can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

10. Can a DIY enthusiast fix the Output Shaft Speed Circuit Intermittent Malfunction on a 1998 Ford F150?

- While some aspects of the repair may be DIY-friendly, diagnosing and repairing transmission-related issues can be complex, so it is recommended to consult a professional mechanic for proper diagnosis and repair.