AutoCodes – Ford – P1900 1997 Ford F150

P1900 1997 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 1997 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 2,240

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 1997 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 1997 Ford F150 - Output Shaft Speed Circuit Intermittent Malfunction - AutoCodes.com — P1900 1997 Ford F150 Code - Output Shaft Speed Circuit Intermittent Malfunction

What does this mean?

What are the Possible Causes of the DTC P1900 1997 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 1997 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 1997 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 1997 Ford F150 Code

1. What are the common symptoms of OBDII code P1900 in a 1997 Ford F150?

- Common symptoms include erratic shifting, harsh shifting, transmission slipping, and illuminated Check Engine Light.

2. What does the Output Shaft Speed Circuit Intermittent Malfunction mean in a 1997 Ford F150?

- This code indicates a problem with the transmission output shaft speed sensor circuit, which monitors the speed of the output shaft to help with shifting and overall transmission performance.

3. What are the possible causes of OBDII code P1900 in a 1997 Ford F150?

- Possible causes include a faulty output shaft speed sensor, damaged wiring or connectors in the sensor circuit, transmission fluid issues, or a malfunctioning PCM.

4. How can I diagnose the Output Shaft Speed Circuit Intermittent Malfunction in a 1997 Ford F150?

- Diagnosis involves using a scan tool to retrieve the trouble codes, testing the output shaft speed sensor and its circuit for continuity and proper voltage, and inspecting wiring and connectors for damage.

5. Are there any DIY repair tips for fixing OBDII code P1900 in a 1997 Ford F150?

- DIY repair tips include checking and cleaning the sensor connector, inspecting and repairing damaged wiring, replacing the output shaft speed sensor if necessary, and clearing the trouble codes with a scan tool.

6. Is it safe to continue driving a 1997 Ford F150 with the Output Shaft Speed Circuit Intermittent Malfunction code?

- It is not recommended to drive the vehicle with this code present, as it can lead to transmission issues and potential further damage if left unresolved.

7. Can resetting the Check Engine Light fix OBDII code P1900 in a 1997 Ford F150?

- Resetting the Check Engine Light may temporarily turn it off, but it will not fix the underlying issue causing the Output Shaft Speed Circuit Intermittent Malfunction.

8. How much does it typically cost to repair OBDII code P1900 in a 1997 Ford F150?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Will OBDII code P1900 cause the transmission to stop working completely in a 1997 Ford F150?

- While the transmission may not stop working completely, OBDII code P1900 can lead to transmission issues such as erratic shifting or slipping if not addressed promptly.

10. Can a mechanic easily fix OBDII code P1900 in a 1997 Ford F150?

- A qualified mechanic with experience in diagnosing and repairing transmission issues should be able to address and fix the Output Shaft Speed Circuit Intermittent Malfunction in a 1997 Ford F150.