The power steering system increases steering performance and improves steering feel and power-saving effectiveness. The power steering pressure switch senses the power steering load and converts it into a voltage signal to the ECM. The ECM then controls the idle speed control motor by using the voltage signal from the power steering pressure switch.
ECM sets DTC P0552 if the ECM detects signal lower than the possible range of a properly operating sensor
Item
Detecting Condition
Possible Cause
DTC Strategy
? Electrical Check
? Open in power circuit
? Open or short to ground in signal circuit
? Poor connection or damaged harness
? Faulty power steering pressure sensor
Enable Conditions
? 10V< Battery voltage <16V
Threshold Value
? Signal voltage < 0.2V
Diagnostic Time
? 30 sec.