AutoCodes – Nissan – P0550 2012 Nissan Pathfinder

P0550 2012 Nissan Pathfinder Code - Power Steering Pressure Sensor Circuit Malfunction

Quick Answer

Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. Common causes include Faulty Power Steering Pressure Sensor, Power Steering Pressure Sensor harness is open or shorted, Power Steering Pressure Sensor 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: P0550 2012 Nissan Pathfinder indicates Power Steering Pressure Sensor Circuit Malfunction.
Common causes: Common causes include Faulty Power Steering Pressure Sensor, Power Steering Pressure Sensor harness is open or shorted, Power Steering Pressure Sensor 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 4,721

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 26, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0550 2012 Nissan Pathfinder Description

Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. This sensor is a potentiometer which transforms the power steering load into output voltage, and emits the voltage signal to the Engine Control Module (ECM). The ECM controls the electric throttle control actuator and adjusts the throttle valve opening angle to increase the engine speed and adjusts the idle speed for the increased load.

OBDII Code P0550 2012 Nissan Pathfinder - Power Steering Pressure Sensor Circuit Malfunction - AutoCodes.com — P0550 2012 Nissan Pathfinder Code - Power Steering Pressure Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0550 2012 Nissan Pathfinder?

Faulty Power Steering Pressure Sensor
Power Steering Pressure Sensor harness is open or shorted
Power Steering Pressure Sensor circuit poor electrical connection

How to Fix the DTC P0550 2012 Nissan Pathfinder?

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 P0550 2012 Nissan Pathfinder 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 P0550 2012 Nissan Pathfinder code?

Need more information on how to fix the P0550 2012 Nissan Pathfinder 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 P0550 2012 Nissan Pathfinder Code

1. What does OBDII code P0550 mean on a 2012 Nissan Pathfinder?

P0550 indicates a malfunction in the Power Steering Pressure Sensor Circuit, which monitors the pressure in the power steering system to adjust engine performance accordingly.

2. What are the common symptoms of code P0550 in a 2012 Nissan Pathfinder?

Symptoms may include difficulty steering, a stiff steering wheel, illuminated Check Engine Light, reduced engine performance, or increased steering effort at low speeds.

3. What causes the P0550 code to appear in a 2012 Nissan Pathfinder?

Common causes include a faulty power steering pressure sensor, damaged wiring or connectors in the sensor circuit, low power steering fluid, or a malfunctioning power steering pump.

4. How do I diagnose the P0550 code on my 2012 Nissan Pathfinder?

Start by checking the power steering fluid level, inspecting the sensor wiring and connectors for damage, and testing the power steering pressure sensor with a multimeter.

5. Is it safe to drive a 2012 Nissan Pathfinder with the P0550 code?

While it may be possible to drive, the P0550 code can result in reduced steering performance, making it unsafe, especially at low speeds or during tight turns. Itâ€™s best to address the issue promptly.

6. Can low power steering fluid trigger the P0550 code?

Yes, low power steering fluid can affect system pressure and cause the sensor to send incorrect readings, potentially triggering the P0550 code.

7. How do I fix the P0550 code on my 2012 Nissan Pathfinder?

Repairs may include replacing the power steering pressure sensor, repairing damaged wiring or connectors, refilling low power steering fluid, or replacing the power steering pump if necessary.

8. How much does it cost to repair the P0550 code on a 2012 Nissan Pathfinder?

Repair costs vary but typically range from $150 to $300 for sensor replacement. Additional costs may apply if wiring repairs or power steering pump replacement is needed.

9. Can a faulty power steering pump cause the P0550 code?

Yes, a malfunctioning power steering pump can lead to incorrect pressure readings, which may trigger the P0550 code.

10. Do I need a mechanic to fix the P0550 code on my 2012 Nissan Pathfinder?

While some issues, like low fluid levels, can be addressed at home, diagnosing and repairing wiring or sensor failures may require a mechanic with specialized tools and expertise.