DTC P0550: Power Steering Pressure Sensor Circuit Malfunction; DTC P0552: Power Steering Pressure Sensor Circuit Low Input; DTC P0553: Power Steering Pressure Sensor Circuit High Input [08/2017 - 08/2018]: Description
WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
The power steering oil pressure sensor is turned ON when a power steering wheel load occurs by turning the steering wheel. The ECM regulates the engine idling RPM according to the voltage output of the sensor.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0550 | Power steering oil pressure sensor voltage less than 0.28 V, or more than 4.9 V for 0.5 seconds while engine running. (1 trip detection logic) |
|
| P0552 | Power steering oil pressure sensor voltage less than 0.28 V for 0.5 seconds while engine running. (1 trip detection logic) |
|
| P0553 | Power steering oil pressure sensor voltage more than 4.9 V for 0.5 seconds while engine running. (1 trip detection logic) |
|