U140E/F, U240E – Automatic Transmission Service Group



U140E-F, U240E - Automatic Transmission Service Group PDF

INTRODUCTION U140E, U140F AND U240E SERIES TRANSMISSION

Starting at the beginning of production for the 1998 model year for Lexus and 2000 for Toyota, a new transaxle, designated as the, U140/U240 series was introduced into service. This Transaxle’s shift points, and shift feel are electronically controlled by a Powertrain Control Module. This is accomplished by the PCM monitoring engine load and adjusting solenoid duty cycle to match pressure rise and shift feel. The PCM also monitors the turbine and output speed sensors to calculate gear ratio and the Transmission Range Sensor for gear selection. This front wheel drive transaxle has four forward gears, and one reverse gear. The unit is comprised of three connecting clutches, three holding brakes, three planetary gear sets, and two one-way clutches. In addition, there is a clutch located in the torque converter which is applied via the ECM for increased fuel economy. The primary difference between the U140E/F and the U240E is clutch capacity. The U140 series being used primarily in the V6 applications, thus, containing a greater number of friction elements in the individual clutch packs, while the U240 series is utilized primarily in the smaller 4 cylinder engines.

Applications:

U140E

U140F

  • 2001–2003 Highlander (4×4)
  • 2001–2010 RAV4 (4×4)
  • 1999–2003 Lexus RX 300 (AWD)
  • 2009– Matrix (2.4 L) (AWD)

U240E

  • 2000–2005 Celica GT-S
  • 2003 Matrix XRS (with VVTL-i engine)
  • 2000–2006 runx/allex (with VVTL-i engine)
  • 2000-2001 Avensis VVTI

INDEX

  • TRANSMISSION APPLICATION BY VEHICLE
  • IDENTIFICATION CODE STAMPING LOCATION
  • COMPONENT APPLICATION CHART
  • CONNECTOR AND INTERNAL HARNESS SCHEMATIC
  • WIRING DIAGRAM AND CONNECTORS
  • TRANSMISSION RANGE SENSOR
  • TURBINE AND OUTPUT SPEED SENSORS
  • VEHICLE SPEED SENSOR
  • DTC DESCRIPTIONS
  • TRANSAXLE DISASSEMBLY
  • COMPONENT REBUILD SECTION:
  • TORQUE CONVERTER HOUSING
  • UNDERDRIVE PLANETARY ASSEMBLY
  • DIFFERENTIAL ASSEMBLY
  • OIL PUMP ASSEMBLY
  • DIRECT (C2) CLUTCH
  • FORWARD (C1) CLUTCH
  • UNDERDRIVE (C3) CLUTCH
  • 2ND BRAKE (B1)
  • NO. 1 ONE WAY CLUTCH (F1) FREEWHEEL OPERATION
  • NO. 2 ONE WAY CLUTCH (F2) FREEWHEEL OPERATION
  • VALVEBODY ASSEMBLY
  • UPPER VALVEBODY CHECK BALL LOCATIONS
  • LOWER VALVEBODY CHECK BALL LOCATIONS
  • SOLENOID OPERATION AND CHECK PROCEDURE
  • VALVEBODY RE-ASSEMBLY PROCEDURE
  • TRANSMISSION FINAL ASSEMBLY
  • TORQUE SPECIFICATIONS
  • CASE PASSAGE IDENTIFICATION FOR AIR TESTING
  • LINE PRESSURE TESTING, TAP LOCATIONS, FLUID CHECKING PROCEDURE
  • ECM MEMORY RESET PROCEDURE
  • SPECIAL SERVICE TOOLS (SST)

Language: English
Format: PDF
Pages: 120
Size: 17.7 Mb
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