Hyundai Step 1 ( 2007) : EPS & MDPS System

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HYUNDAI MOTORS
Chonan Technical Service Training Center
407-7, Yongdu-Ri, Byungchon-Myun, Chonan-City,
Chungnam,330-863, Korea
TEL : 82-41-559-2960 FAX : 82-41-561-0584


CONTENTS
1. POWER RACK AND PINION STEERING
1) SYSTEM CONSTRUCTION ---------------------------------------------------------------------
2) RACK-AND-PINION STEERING LINKAGE ------------------------------------------------
3) RACK-AND-PINION STEERING ASSEMBLY ---------------------------------------------
4) CUTAWAY OF A RACK-AND-PINION STEERING GEAR ------------------------------
5) OPERATION OF THE PINION AND VALVE ASSEMBLY -------------------------------
2. POWER STEERING PUMP
1) OIL PUMP CONSTRUCTION -------------------------------------------------------------------
2) OPERATION OF THE OIL PUMP -------------------------------------------------------------
3) RELIEF VALVE -------------------------------------------------------------------------------------
4) FLOW CONTROL VALVE -----------------------------------------------------------------------
3. OIL REPLACEMENT ---------------------------------------------------------
4. AIR BLEEDING ----------------------------------------------------------------
5. OIL PUMP PULLEY AND BELT REPLACEMENT -------------------
EPS(Electronic Power Steering)
6. EPS GENERAL
1) SYSTEM LAYOUT ---------------------------------------------------------------------------------
2) EPS FEATURES -----------------------------------------------------------------------------------
3) TYPES OF EPS SYSTEM -----------------------------------------------------------------------
7. FLOW CONTROL TYPE EPS SYSTEM
1) EPS SOLENOID ------------------------------------------------------------------------------------
2) OPERATION -----------------------------------------------------------------------------------------
8. REACTION TYPE EPS SYSTEM
1) CONSTRUCTION ----------------------------------------------------------------------------------
2) ROTARY VALVE -----------------------------------------------------------------------------------
3) COUNTER-FORCE PLUNGER ----------------------------------------------------------------
4) PCV OPERATING PRINCIPLE -----------------------------------------------------------------
9. DIAGNOSIS AND TROUBLESHOOTING
1) EPS OPERATING PRINCIPLE -----------------------------------------------------------------
2) EPSCM INPUT & OUTPUT ---------------------------------------------------------------------
3) EPSCM LOCATION & PIN LAYOUT ---------------------------------------------------------
4) EPS SOLENOID VALVE -------------------------------------------------------------------------
5) CURRENT CONTROL OF THE SOLENOID VALVE -------------------------------------
6) TROUBLESHOOTING ----------------------------------------------------------------------------
10. EPSCM HI-SCAN PRO DATA --------------------------------------------
MDPS(Motor Driven Power Steering)
11. GENERAL
1) Advantages -----------------------------------------------------------------------------------------
2) The merits of MDPS ------------------------------------------------------------------------------
3) Comparison of the construction -------------------------------------------------------------
4) Types of the EPS ----------------------------------------------------------------------------------
12. CONSTRUCTION OF COLUMN TYPE EPS
1) General specification for Unit ----------------------------------------------------------------
2) ECU block diagram -------------------------------------------------------------------------------
13. INPUT SIGNALS
1) Torque sensor (Main, Sub) ---------------------------------------------------------------------
2) Vehicle speed signal -----------------------------------------------------------------------------
3) Ignition (Engine speed) -------------------------------------------------------------------------
4) Warning lamp control ---------------------------------------------------------------------------
5) Idle up control -------------------------------------------------------------------------------------
6) Motor control ---------------------------------------------------------------------------------------
14. TIMING CHART --------------------------------------------------------------
15. DIAGNOSIS AND TROUBLESHOOTING
1) ECU Pin terminal diagram ---------------------------------------------------------------------
2) Terminal Assignment of Connector --------------------------------------------------------
3) Input / Output terminal voltage (Reference) ---------------------------------------------
4) Failsafe -----------------------------------------------------------------------------------------------
5) Basic Inspection ----------------------------------------------------------------------------------
6) Parts replacement and failure diagnostic operations --------------------------------
7) Inspection to be performed when the Warning lamp does not turn on ---------
8) Defect of the power supply system ---------------------------------------------------------
9) Sensor malfunction difficult to be detected by self-diagnosis --------------------
10) Code specific fault diagnosis ---------------------------------------------------------------
11) Inspection according to the Diagnosis trouble code -------------------------------
12) Inspection According To the Defective Phenomena --------------------------------
13) Diagnostic Trouble Code & Causes -------------------------------------------------------

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