MDPS (Electric power steering, Column assist type) system
uses an electric motor to assist the steering force and it is an engine
operation independent steering system. MDPS control module controls the
motor operation according to information received from the each sensor
and CAN (Controller Area Network), resulting in a more precise and
timely control of steering assist than conventional engine-driven
hydraulic systems. Components (Torque Sensor, Fail-safe relay, etc.) of
the MDPS system are located inside the steering column & MDPS unit
assembly and the steering column & MDPS unit assembly must not be
disassemble to inspect or replace them.
R-MDPS operation mechanism

Other information:
Speedometer
The speedometer indicates the
speed of the vehicle and is calibrated
in miles per hour (mph) and/or kilometers
per hour (km/h).
Tachometer
The tachometer indicates the
approximate number of engine revolutions
per minute (rpm).
Use the tachometer to select the correct
...
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Pull out the relay from the engine compartment relay box.
Power Relay (Type A)
Check for continuity between the terminals.
A : start relay
1.
After supplying power to between No. 85 and 86 power relay
terminals, check t ...