MDPS (MANDO) Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company.

2 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. System Structure PCM(ECM) Vehicle speed ENG speed TypeGENM/EEUAust.CANUSA Hydraulic P/SSS-S-- MDPS--S-SS S: Standard, -: Not applied CAN MDPS BLAC motor (120A) Torque & Angle Sensor MDPS control module

3 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. System comparison Category Low power type 1 (1,100cc ~ 1,500cc) Low power type 2 (1,500cc ~ 2,000cc) High power type (2,000cc ~ 3,000cc) ModelTB, MC,PA,PBHD, FDYF 2.4GDiLM Power (Max.) 50 Nm61 Nm85 Nm83.4 Nm MotorDCBLAC (78A) BLAC (130A)BLAC (120A) Torque Sensor Contact type: TB, MC Non-contact type: PA,PB,MC Optical type Non-contact type Angle Sensor - ECU Separated typeIntegrated typeSeparated type Maker MANDOMOBIS(TRW)MOBISMANDO

4 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Inputs & Outputs MDPSCMMDPSCM MDPSCMMDPSCM Motor Assist Control Power, Ground Torque & Angle Sensor IGN ON Vehicle speed, Engine speed TCMECM Warning lamp Control (Cluster) CAN

5 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Torque & Angle Sensor Torque sensor Magnet (input) Rotor (output) Angle sensor Torque & Angle sensor assembly : Two in One package model : Separated output Torque – Two analogue voltage Angle – Two PWM signals [ Torque Sensor + Absolute Angle Sensor ]

6 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Torque & Angle Sensor Stator (output) S Hall IC Collector NSNSN Magnet (input) Operating principle of torque sensor Operating principle of angle sensor Twisting of torsion bar Rotation of magnet Change of magnet flux Voltage output by Hall IC Hall IC 1 Hall IC 2 Gear 1 Gear 2 Magnet Main Gear Twisting of torsion bar Rotation of main gear Rotation of magnet Voltage output by Hall IC Hall IC 1 Hall IC 2

7 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. MDPS Control Module Front Rear Front Motor power connector (3P) Motor position sensor connector (8P) Torque, Angle sensor connector (8P) Vehicle connector (8P) ECU power connector (2P), MDPS CM DLC connector

8 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Motor Motor frame Lower cover ECU relay Main Magnet Sensor magnet Drive coupling Roll pin Sensor PCB Dust cover Guide block Stator Brushed Motor BLAC Motor (LM)

9 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Warning Lamp MDPS Warning Lamp IG ON, Engine Stop: Keeps ON System failure: Keeps ON Engine Starting : Turns off 1sec later after engine starting in normal condition. CategoryDTCCauseFailsafeW/Lamp Power supply C1101Over voltage Motor assist OFF ON C1102Low voltage C1109Abnormal IGN voltage Torque sensor C1290Abnormal output signal Motor assist OFF C1112Sensor power failure Angle sensor C1259Abnormal output signal Motor assist ON C1261Not calibrated ECU C1603Thermal protectionLow AssistOFF C1604ECU error (critical/minor)Assist OFF or ONON/OFF C1702Variant coding errorAssist ON (default map)OFF C1704Failsafe relay failureMotor assist ON ON CAN C1611Delay communication Motor assist ON (fixed by 70kph) C1616Impossible communication C1622Vehicle speed signal error Motor C2401Position sensor errorAssist OFF or ON C2412Motor short / open circuit Motor assist OFF C2413Abnormal motor current

10 MDPS Copyright 2009 All rights reserved. No part of this material may be reproduced, stored in any retrieval system or transmitted in any form or by any means without the written permission of Hyundai Motor Company. Service & Maintenance Variant Coding SAS Calibration Vehicle Alignment DTC Clear AreaEngineVariant No. DOM (LM) ΘA RB NA (LM)ΘC Europe (EL) Θ / UD RE γF 1. Set the steering wheel straight ahead 2. Ignition key ON, engine stop 3. Press reset button on the scanner 4. Turn the steering wheel until the next message shows 5. IG off for 10sec 6. IG on and click OK button C1702 (Variant coding error) C1261 (SAS Calibration error)