P0550 Mercedes-Benz Power Steering Pressure Sensor Circuit Malfunction
Possible causes
– Faulty Power Steering Pressure Sensor
– Power Steering Pressure Sensor harness is open or shorted
– Power Steering Pressure Sensor circuit poor electrical connection
– Power Steering Pressure Sensor harness is open or shorted
– Power Steering Pressure Sensor circuit poor electrical connection
What about the obd code?
An excessively low or high voltage from the Power Steering Pressure Sensor is sent to Engine Control Module (ECM).
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Power steering inoperative
– Power steering inoperative
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.
Mercedes-Benz Vehicle:Mercedes-Benz C-Class,Mercedes-Benz CL-Class,Mercedes-Benz CLK-Class,Mercedes-Benz CLS-Class,Mercedes-Benz E-Class,Mercedes-Benz G-Class,Mercedes-Benz GL-Class,Mercedes-Benz GLK-Class,Mercedes-Benz M-Class,Mercedes-Benz R-Class,Mercedes-Benz S-Class,Mercedes-Benz SL-Class,Mercedes-Benz SLK-Class,Mercedes-Benz SLS-Class,Mercedes-Benz Sprinter 2500,Mercedes-Benz Sprinter 3500,