Automatic Transmission (A4CF1) Copyright by Hyundai Motor Company. All rights reserved.

2 Automatic Transmission TM Variation [ MT, AT / MT only] Engine TransaxleArea ManualAutomaticEUGeneralIndia Gasoline Kappa 1.2 (1,197cc) M5EF2- -- Kappa 1.25 (1,248cc) - Gamma 1.4 M5CF1-1A4CF1 - Gamma Diesel U 1.4 M5CF U2 1.6 M6CF

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

4 Automatic Transmission Specification ItemsA4CF1 EngineGamma 1.4 / 1.6 CVVT Max Torque (Kg-m)15.5 Solenoid ValvesTotal 6EA (Duty-5EA, VFS 1EA) Gear Ratio1 st / 2 nd / 3 rd / 4 th / R (2.919 / / / / 2.480) Shift lever type6 positions (P, R, N, D, 2, L) with OD OFF switch Engine Stall SpeedGamma : 2,400rpm ATFATF SP-3 (Same as HIVEC) ATF Quantity6.6 Liter ATF ReplacementNormal : 100,000Km / Harsh : 40,000Km SealantLoctite FMD-456 (Applied in T/C housing, Oil pan and rear cover) TCM TypeBosch TMS (Gamma : PCM)

5 Automatic Transmission Shift lever OD OFF Switch (Momentary type) 6 positions OD OFF lamp

6 Automatic Transmission Oil Pump 4.7 Kg - - Volumetric Efficiency Lower - : 60 % (1000 RPM) - Trochoid Centric Rotor - Material : Iron A4AF3 1.9 Kg - Volumetric Efficiency improved : 80 % (1000 RPM) - Weight, Driving Torque, Easy machining - Parachoid Rotor - Material : Alloy A4CF1 Rotor Shape Weight Efficiency Feature Items

7 Automatic Transmission Torque Converter Reducing Thickness by 5mm Adopting long travel damper spring (A4CF1) (A4AF3) (A4CF1) 9 12˚ 17 20˚

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 Solenoid Valve Current Control VFS PCSV & SCSV

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 A4CF1. 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) (A4CF1)(A4AF3)

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,2) 1 st UD*OFF ONONOFF *ON OFF (D,2) 2 nd UD, 2NDONOFF ONOFF D-3 rd UD, ODOFFONOFFONOFF D-4 th OD, 2NDOFF ON OFF R LR, RVSOFF ONOFFON (L) 1 st UD, LROFFONOFF ON Operation table * Vehicle stop Wheel rotates

19 Automatic Transmission Input & Output PCM PG-A & PG-B GND Inhibitor Switch OTS Battery Power CAN Communication OD OFF Switch Input Output PCSV – A(LR&OD) PCSV – B(2 nd &REV) PCSV – C(UD) PCSV – D(DCC) SCSV – A (On/Off) VFS Cluster Vehicle Speed

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

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

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

23 Automatic Transmission Solenoid Valve (Bosch vs. Siemens) 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 1.4 / 1.6 CVVT) GND (U-1.6) UD(+) (PCSV-C) 2 nd &Rev(+) (PCSV-B) LR&OD(+) (PCSV-A) On/Off(+) DCC(+) (PCSV-D) VFS(+) PCM (γ-1.6)

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

25 Automatic Transmission Solenoid Valve Fail (3 rd Gear Fixed) * 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

26 Automatic Transmission Resetting Auto T/A Values