MDPS Diagnosis Principle: Notes

This bulletin provides Motor Driven Power Steering (MDPS) diagnostic procedure using GDS to diagnose the heavy steering effort, abnormal position of steering parts and MIL illumination in steering system.

• GDS judges the MDPS normal/abnormal state by calculating the MDPS motor torque generated when turning the steering wheel to left and right at 360° per 3 seconds.

Fig 1: MDPS Diagnosis Communication Diagram

Courtesy of HYUNDAI MOTOR AMERICA

Fig 2: MDPS Inspection Procedure Chart

Courtesy of HYUNDAI MOTOR AMERICA