To reduce the required power to manipulate steering wheel, hydraulic pressure is used in power steering system. A load is sensed at steering oil pressure sensor then inputted to PCM as a wheel position signal. Controlling idle speed valve, PCM performs appropriate electric load correction With this signal.
PCM sets DTC P0552 if the PCM detects signal lower than the possible range of a properly operating sensor.
Item
Detecting Condition
Possible Cause
DTC Strategy
Electrical Check
Open or short to ground 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.
MIL On Condition
-
INTERVAL ? : The signal at the Power Steering halt
INTERVAL ? : The normal perfomance signal including Most of the range
INTERVAL ? : The signal at the maximum steering angle.