Engine-Codes - Generic - P0551

P0551 Code - Power Steering Pressure Sensor Circuit Range/Performance

- Code Popularity: 15,892 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0551?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Power Steering Pressure Sensor
  • Power Steering Pressure Sensor harness is open or shorted
  • Power Steering Pressure Sensor circuit poor electrical connection
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How to Fix the DTC P0551?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0551 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

An out of range voltage from the Power Steering Pressure Sensor is sent to Engine Control Module (ECM).

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Power steering inoperative

What Does the P0551 Code Mean?

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.

P0551 Code - Power Steering Pressure Sensor Circuit Range/Performance

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Code P0551 Information for Specific Makes

  • P0551 Chrysler Power Steering Pressure Sensor Circuit Range/Performance
  • P0551 Dodge Power Steering Pressure Sensor Circuit Range/Performance
  • P0551 Jeep Power Steering Pressure Sensor Circuit Range/Performance
  • P0551 KIA Power Steering Pressure Sensor Circuit Range/Performance
  • P0551 Mazda Power Steering Pressure Sensor Circuit Range/Performance
  • P0551 Mercedes-Benz Power Steering Pressure Sensor Circuit Range/Performance
  • P0551 Mitsubishi Power Steering Pressure Sensor Circuit Range/Performance

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