AutoCodes – Nissan – P0550 2012 Nissan Altima Sedan

P0550 2012 Nissan Altima Sedan 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 Altima Sedan 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 6,221

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 Apr 14, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0550 2012 Nissan Altima Sedan 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 Altima Sedan - Power Steering Pressure Sensor Circuit Malfunction - AutoCodes.com — P0550 2012 Nissan Altima Sedan Code - Power Steering Pressure Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0550 2012 Nissan Altima Sedan?

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 Altima Sedan?

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 Altima Sedan 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 Altima Sedan code?

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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 Altima Sedan Code

1. What does the P0550 code mean on a 2012 Nissan Altima Sedan?

The P0550 code indicates a Power Steering Pressure Sensor Circuit Malfunction, meaning the sensor is not sending the correct voltage signal to the engine control module (ECM).

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

Symptoms include a stiff power steering feel, illuminated check engine light, and possibly increased effort required to turn the steering wheel.

3. What causes the P0550 code to appear on a 2012 Nissan Altima?

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

4. Can I drive my 2012 Nissan Altima with a P0550 code?

Driving is possible but not recommended as it may result in reduced power steering assist, making steering more difficult and potentially unsafe.

5. How do I troubleshoot the P0550 code on a 2012 Nissan Altima?

Start by inspecting the power steering pressure sensor and its wiring for damage or corrosion. Check for loose connections and test the sensor's output with a multimeter.

6. How is the P0550 code repaired on a 2012 Nissan Altima?

Repairs may involve replacing the power steering pressure sensor, fixing damaged wiring or connectors, or in rare cases, reprogramming or replacing the ECM.

7. How much does it cost to fix the P0550 code on a 2012 Nissan Altima?

The repair cost varies, typically ranging from $150 to $300, depending on whether the sensor or wiring needs replacement.

8. Can a bad power steering pump cause the P0550 code?

No, the P0550 code specifically relates to the power steering pressure sensor circuit, not the pump itself, though pump issues can indirectly affect system pressure.

9. Will clearing the P0550 code with a scan tool fix the issue?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be repaired to prevent the code from returning.

10. How can I prevent the P0550 code from recurring on my 2012 Nissan Altima?

Regularly inspect the power steering system, ensure connections are secure, and address any leaks or wiring issues promptly to maintain sensor functionality.