AutoCodes – Ford – P1550 1999 Ford F150

P1550 1999 Ford F150 Code - Power Steering Pressure Sensor Malfunction

Quick Answer

The Power Steering Pressure (PSP) sensor input signal to the Powertrain Control Module (PCM) is continuously monitored. Common causes include Faulty Power Steering Pressure (PSP), PSP harness is open or shorted, PSP circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1550 1999 Ford F150 indicates Power Steering Pressure Sensor Malfunction.
Common causes: Common causes include Faulty Power Steering Pressure (PSP), PSP harness is open or shorted, PSP circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 2,498

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1550 1999 Ford F150 Description

The Power Steering Pressure (PSP) sensor input signal to the Powertrain Control Module (PCM) is continuously monitored. The test fails when the signal falls out of a maximum or minimum calibrated range.

OBDII Code P1550 1999 Ford F150 - Power Steering Pressure Sensor Malfunction - AutoCodes.com — P1550 1999 Ford F150 Code - Power Steering Pressure Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC P1550 1999 Ford F150?

Faulty Power Steering Pressure (PSP)
PSP harness is open or shorted
PSP circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1550 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 P1550 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.

Need more information about the P1550 1999 Ford F150 code?

Need more information on how to fix the P1550 1999 Ford F150 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1550 1999 Ford F150 code diagnosed by a professional: Find a repair shop in your area

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 P1550 1999 Ford F150 Code

1. What are the common symptoms of OBDII code P1550 in a 1999 Ford F150?

Symptoms may include difficulty steering, stiff or jerky steering wheel, power steering failure, and illuminated warning lights on the dashboard.

2. What does the OBDII code P1550 indicate in a 1999 Ford F150?

The code P1550 typically indicates a malfunction in the power steering pressure sensor of a 1999 Ford F150.

3. What are the possible causes of a power steering pressure sensor malfunction in a 1999 Ford F150?

Common causes include a faulty power steering pressure sensor, damaged wiring or connectors, low power steering fluid level, or a problem with the power steering pump.

4. How can I diagnose the power steering pressure sensor issue in a 1999 Ford F150?

Diagnosing the issue may involve using an OBDII scanner to read the P1550 code, checking the power steering fluid level, inspecting the sensor and its connections for damage, and testing the power steering pump.

5. Can I still drive my 1999 Ford F150 with the P1550 code present?

It is not recommended to drive the vehicle with the P1550 code as it can affect the power steering system, potentially leading to safety issues and further damage.

6. How can I repair the power steering pressure sensor malfunction in my 1999 Ford F150?

Repair options may include replacing the power steering pressure sensor, repairing or replacing damaged wiring or connectors, ensuring proper power steering fluid levels, and addressing any issues with the power steering pump.

7. Is it possible to reset the OBDII code P1550 in a 1999 Ford F150?

Resetting the code can be done using an OBDII scanner after addressing the underlying issue causing the power steering pressure sensor malfunction.

8. How much does it typically cost to repair the power steering pressure sensor issue in a 1999 Ford F150?

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

9. Can a DIY enthusiast fix the power steering pressure sensor problem in a 1999 Ford F150?

Depending on the skill level and experience, some DIY enthusiasts may be able to diagnose and repair the power steering pressure sensor issue, but it is recommended to seek professional help if unsure.

10. How can I prevent the recurrence of the power steering pressure sensor malfunction in my 1999 Ford F150?

Regularly checking and maintaining the power steering system, including fluid levels and sensor connections, can help prevent the recurrence of the power steering pressure sensor issue.