Power Steering Pressure Sensor Circuit Malfunction
Table of contents
P0550 NISSAN Possible Causes
- Faulty Power Steering Pressure Sensor
- Power Steering Pressure Sensor harness is open or shorted
- Power Steering Pressure Sensor circuit poor electrical connection
How do I fix code P0550 NISSAN?
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’s pins.
Cost of diagnosing the P0550 NISSAN code
The cost of diagnosing the P0550 NISSAN code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
An excessively low or high voltage from the Power Steering Pressure Sensor is sent to Engine Control Module (ECM).
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Power steering inoperative
P0550 NISSAN 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.