P0550 MERCEDES-BENZ – Power Steering Pressure Sensor Circuit Malfunction

 

p0550: DIY Repairing Video Tutorial

https://youtu.be/dO9UgACU82c

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0550 MERCEDES-BENZ Possible Symptoms

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

P0550 MERCEDES-BENZ Possible Causes

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

P0550 MERCEDES-BENZ 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.