Hyundai Genesis (DH): Motor Driven Power Steering / Description and Operation

Description
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.
Operation
R-MDPS operation mechanism

    Circuit Diagram 1. Connector terminal TypePin NoDescriptionBattery1Battery -2Battery +Vhicle1-2-3-4-5-6-7IGN8High_CAN9Low_CAN10-11-12- 2. Circuit Diagram

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: Components and Components Location

    C

    Hyundai Genesis (DH) 2013-2016 Service Manual: Photo Sensor Repair procedures

    Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and fall with lower intensive light.

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