DTC P0550, DTC P0552 Or P0553: Notes
Code Definition
- DTC P0550: Power Steering Pressure Sensor/Switch Circuit
- DTC P0552: Power Steering Pressure Sensor/Switch Circuit Low Input
- DTC P0553: Power Steering Pressure Sensor/Switch Circuit High Input
CAUTION:
If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. If ECM is replaced, ECM must be programmed with proper ignition key code for engine immobilizer system. For programming procedures, see COMPUTER RELEARN PROCEDURES - LEXUS
article in GENERAL INFORMATION.
NOTE:
For information on engine immobilizer system, see COMPUTERIZED ENGINE CONTROLS
in THEORY & OPERATION article.