EHPS (Electro Hydraulic Power Steering) is assitance steering ability system uses electrical motor that generate oil pressure not to use the Engine power.
MPU(Motor Pump Unit) motor generate oil pressure and control steering force according to vehicle speed changes.
MPU ECU determine current amont in accordance with vehicle speed signal, steering angle sensor signal.
MPU motor contron to current.
The MPU set this code If the motor revolution speed below 100 rpm.
Item
Detecting Condition
Possible Cause
DTC Strategy
Faulty motor
Faulty MPU
Enable Conditions
Engine "ON"
Threshold Value
motor revolution speed < 100rpm
Detecting time
900ms
Fail Safe
EHPS stop control
Restoration conditions
IG OFF -> IG ON