An operating motor is used to support the driving force of steering wheel when the wheel is turned(rotated) by the driver. The operating motor (a brush type DC motor) is installed in middle of steering column and operates the steering column. The EPS motor can be damaged during disassembly or removal of the operating motor, so you must disassemble or remove the EPS motor with the assembly.
This DTC refers to failure or insufficent current, in motor, during EPS CM control of the motor. This code is set if current under 2A is detected, in motor, due to open/short of EPS motor control harness, faulty contact or short in motor inside.
Item
Detecting Condition
Possible cause
DTC Strategy
Current check
Short in ground circuit.
Short in control circuit
Contact resistance in connections.
Faulty EPS Motor
Faulty EPS CM
Enable conditions
System power "ON"
Fail-safe relay contact voltage > 10 V
Threshold value
Require current value > 4 A
Measure current value < 2 A
Diagnosis time
2 sec
Fail safe
Motor : OFF
Relay : OFF
Fail lamp : ON
Restoration condition : In a case that it is normal when turning the ignition switch into "ON" after Ignition "OFF"