Copyright by Hyundai Motor Company. All rights reserved. New Alpha A/T

2 Automatic Transmission TM Variation EngineTransmissionArea (5door / Wagon) ModelPS/Kg.mA/TM/TEUDOM.GEN.NA GSL Gamm a /13.9- M5CF1 (A) / Gamm a /15.6A4CF1 / / / - Beta /18.8 A4CF2 M5CF2 / / / - / DSL U /26 (90/22) (B) M5CF3 / / / - D /31-M6GF2 / --- [ MT, AT / MT only]

3 Automatic Transmission Reverse clutch O/D clutch 2 nd brake LR brake U/D clutch OWCOutput planetary gear O/D planetary gear Internal Structure

4 Automatic Transmission ItemsA4CF1A4CF2A4AF3 (MC) EngineΓ-1.6Β-II 2.0U 1.6Alpha II Torque (kg m) Number of OWC1 Number of Clutch3 Number of Brake2 Centrifugal Balance Chamber 3 (UD, OD, Reverse Clutch) 1 (Frt. Clutch) Accumulator4(UD,OD,2 nd,LR)1 Solenoid valves 6 (PWM-5, VFS-1) 6 (On,Off-3, PWM-3) Gear Shift Position7 Mode (P,R,N,D,3,2,1)6 with O/D switch Specification

5 Automatic Transmission Shift lever Twist and push down (Upon ATM shift lock equipped) bolt

6 Automatic Transmission 4.7 Kg - Volumetric Efficiency Lower : 60 % (1000 RPM) - Trochoid Centric Rotor - Material : Iron A4AFx 1.9 Kg - Volumetric Efficiency improved : 80 % (1000 RPM) - Weight, Driving Torque, Easy machining - Parachoid Rotor - Material : Alloy A4CFx Rotor Shape Weight Efficiency Feature Items Oil Pump

7 Automatic Transmission Reducing Thickness by 5mm Adopting long travel damper spring (A4CFx) (A4AFx) (A4CFx) 9 12˚ 17 20˚ Torque Converter

8 Automatic Transmission Type Advantage Reaction Force is constantly held during lifetime. Reaction Force is gradually decreased. Disc Type Return Spring (L/R Brake) Disc Spring

9 Automatic Transmission Valve Body Valve body and spool valve are from Alloy Full line pressure control Individual Clutch to Clutch Control * To remove the valve body, - A type (6x30mm) : 17EA - B type (6x35mm) : 1EA - C type (6x40mm) : 1EA - D type (6x55mm) : 1EA - E type (6x60mm) : 1EA C ED B A X 17EA Valve body mounting bolt location

10 Automatic Transmission PCSV - A : O/D or LR Solenoid PCSV - B : 2 nd or REV Solenoid PCSV - C : UD Solenoid PCSV - D : Damper Clutch Solenoid On/Off Sol V/V : Switching PCSV – A from LR to O/D (Switch on – LR engaged, off- O/D engaged) VFS Solenoid Solenoid Valve * Each solenoid can be interchangeable except VFS (Variable Force Solenoid)

11 Automatic Transmission VFS PCSV & SCSV Solenoid Valve Current Control

12 Automatic Transmission UD (two springs with white color) OD (one spring with yellow color) 2 nd (two springs with yellow color) L/R (one spring with yellow color) Accumulator * Each Spring can be interchangeable except white one

13 Automatic Transmission * Totally 8 checking ports are used. - UD : UD Clutch - RED : Reducing Pressure - L/R : L/R Brake - O/D : O/D Clutch - DA : Damper Clutch Apply - 2 nd : 2 nd Brake - LUB : Lubrication Pressure - REV : Reverse Clutch Hydraulic Pressure Checking Port REV L/R UD DA LUB RED OD 2ND

14 Automatic Transmission Pressure Circuit (P/N)

15 Automatic Transmission * Advantage : To improve fuel consumption by reducing unnecessary high pressure ComparisonPurpose Unnecessary high pressure Optimum pressure TPS Gear Line pressure (bar) Optimum line pressure Improved efficiency Lower fuel consumption Regulator valve Pump Line pressure Solenoid valve Regulator valve Pump Controlled pressure Line pressure Line pressure (bar) VFS (Variable Force Solenoid)

16 Automatic Transmission VSS (Vehicle Speed Sensor) VSS is eliminated in A4CFx. Instead of this, output speed sensor (PG-B) is used for TCM.

17 Automatic Transmission FPC (Flexible Printed Circuit) Harness 10P CONN INLINE CONNVFS PCSV CONN OTS 10P CONN INLINE CONN VFS PCSV CONN OTS (OTS) (A4CFx)(A4AFx)

18 Automatic Transmission ItemsSolenoid Valve (0%:OFF, 100%:ON) RangeOperation PCSV-A (OD&LR) PCSV-B (2ND&RVS) PCSV-C (UD) PCSV-D (DCCSV) ON/OFF SOL. P, N LROFFON OFFON (D,3,2) 1 st UD*OFF ONONOFF *ON OFF (D,3,2) 2 nd UD, 2NDONOFF ONOFF (D,3) 3 rd UD, ODOFFONOFFONOFF D-4 OD, 2NDOFF ON OFF R LR, RVSOFF ONOFFON (L) 1 st UD, LROFFONOFF ON Operation table * Vehicle stop Wheel rotates

19 Automatic Transmission PCM (TCM) PCM (TCM) PG-A & PG-B GND Inhibitor Switch OTS Battery Power CAN Communication 3 rd Gear Position Switch Input Output O/D off Request (Cruise) PCSV – A(LR&OD) PCSV – B(2 nd &REV) PCSV – C(UD) PCSV – D(DCC) SCSV – A (On/Off) VFS 2 nd & L Input (Cruise) Cluster Vehicle Speed PCM Installation : Engine compartment Input & Output

20 Automatic Transmission PG-A PG-B VSS (From PCM to Cluster) Input (PG-A) and Output Speed Sensor (PG-B)

21 Automatic Transmission * When PG-A or PG-B failure is detected, electrically gear is fixed to 3 rd gear. A to B : 1.08s Failure Detected PG-A & PG-B Failure

22 Automatic Transmission * When OTS failure is detected, OTS current data sets to 80. OTS (Oil Temperature Sensor)

23 Automatic Transmission Power UD(-) (PCSV-C) 2 nd &Rev(-) (PCSV-B) LR&OD(-) (PCSV-A) On/Off(-) DCC(-) (PCSV-D) Power Siemens (Beta 2.0) VFS(-) Bosch (Gamma & U1.6 CRDI) GND (U-1.6) UD(+) (PCSV-C) 2 nd &Rev(+) (PCSV-B) LR&OD(+) (PCSV-A) On/Off(+) DCC(+) (PCSV-D) VFS(+) PCM/TCMPCM (γ-1.6) Solenoid Valve (Bosch vs. Siemens)

24 Automatic Transmission P R N D * Solenoid failure checking for 80ms. Solenoid valve control

25 Automatic Transmission * SCSV solenoid valve shorts to ground during driving under 3 rd gear resulting in mechanical 3 rd gear fixed condition. A to B : 1.8s Solenoid Valve Fail (3 rd Gear Fixed)

26 Automatic Transmission Resetting Auto T/A Values

27 Automatic Transmission When CAN system error happens, following values go to fail safe like Engine rpm : 3000 Engine Torque : 63% A/Con. S/W : Off Throttle Position : 50% CAN Communication