AutoCodes – Ford – P1900 1999 Ford F150

P1900 1999 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 1999 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 2,121

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 1999 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 1999 Ford F150 - Output Shaft Speed Circuit Intermittent Malfunction - AutoCodes.com — P1900 1999 Ford F150 Code - Output Shaft Speed Circuit Intermittent Malfunction

What does this mean?

What are the Possible Causes of the DTC P1900 1999 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 1999 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 1999 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 1999 Ford F150 Code

1. What are the common symptoms of OBDII code P1900 on a 1999 Ford F150?

The common symptoms of OBDII code P1900 on a 1999 Ford F150 include erratic shifting, hesitation during acceleration, and illuminated Check Engine Light.

2. What does the OBDII code P1900 indicate in a 1999 Ford F150?

OBDII code P1900 in a 1999 Ford F150 specifically refers to an Output Shaft Speed Circuit Intermittent Malfunction.

3. What are the possible causes of OBDII code P1900 on a 1999 Ford F150?

The possible causes of OBDII code P1900 on a 1999 Ford F150 include a faulty output shaft speed sensor, damaged wiring or connectors, or a malfunctioning transmission control module.

4. How can I diagnose the OBDII code P1900 on my 1999 Ford F150?

To diagnose OBDII code P1900 on a 1999 Ford F150, you can use a scan tool to retrieve the trouble codes, inspect the output shaft speed sensor and its wiring for any visible damage, and test the sensor's resistance with a multimeter.

5. Can I continue driving my 1999 Ford F150 with OBDII code P1900?

It is not recommended to continue driving your 1999 Ford F150 with OBDII code P1900, as it can lead to further damage to the transmission and potentially cause unsafe driving conditions.

6. How can I repair OBDII code P1900 on a 1999 Ford F150?

To repair OBDII code P1900 on a 1999 Ford F150, you may need to replace the faulty output shaft speed sensor, repair any damaged wiring or connectors, or reprogram the transmission control module.

7. Is it possible to reset the OBDII code P1900 on a 1999 Ford F150 without fixing the underlying issue?

Resetting the OBDII code P1900 on a 1999 Ford F150 without fixing the underlying issue is not recommended, as the problem will likely reoccur and may cause further damage to the vehicle.

8. How much does it cost to repair OBDII code P1900 on a 1999 Ford F150?

The cost to repair OBDII code P1900 on a 1999 Ford F150 can vary depending on the specific issue, but it may range from $100 to $500, including parts and labor.

9. Are there any preventive measures to avoid OBDII code P1900 on a 1999 Ford F150?

Regular maintenance of the transmission system, including checking and replacing sensors as needed, can help prevent OBDII code P1900 on a 1999 Ford F150.

10. Can a DIY enthusiast without much experience fix OBDII code P1900 on a 1999 Ford F150?

While some aspects of diagnosing and repairing OBDII code P1900 on a 1999 Ford F150 can be done by a DIY enthusiast, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair.