Toyota Lexus A761E – ATSG (Automatic Transmission Service Group)

The A761E transmission is Toyota’s first automatic 6-speed transmission. It is said that it is the lightest 6-speed automatic transmission in the world weighing in at 85 Kg wet. This transmission is currently found in the 2004 and later Toyota/Lexus models worldwide. It is an enhanced A750E used in various Toyota models. Many of the parts used in the A750E are the same in the A761E. The most significant deviation is with the addition of a C4 clutch and F4 sprag inside the C1 clutch drum assembly. This addition confines clutch to clutch shifting without any sprag assist between 5th and 6th speeds only…


  • 2004-2006 Lexus LS 430
  • 2006-2007 Lexus GS 430
  • 2006-2010 Lexus SC 430


  • Gear Ratio
  • Introduction
  • Application Chart
  • Solenoid Principles Of Operation
  • Solenoid Malfunction Charts
  • Diagnostic Trouble Code Descriptions
  • Driving Pattern Select Switch
  • Fail-Safe Strategies
  • Electrical Information
  • Transmission Fluid Check
  • Pressure Specifications
  • Internal Components Overview
  • Bearing Identification and Specifications
  • Solenoid Identification
  • Valve Body Removal
  • Valve Body Disassembly
  • Valve Body Checkball Locations
  • Valve Body Retainer Locations
  • Valve Body Valve & Spring Identification
  • Accumulator Identification
  • Front Pump Information
  • C2 & C3 Clutch Pack
  • C4 & C1 Clutch Pack
  • B1 & B3 Clutch Pack
  • B2 & B4 Clutch Pack
  • B2 Anti-Rattle Spring Location
  • “C” Clutch Selective Plate Identification
  • “B” Clutch Selective Plate Identification
  • Rear Output Shaft Bearing Installation
  • Air Check Passages
  • Torque Specifications
  • Solenoid Hydraulic theory of operation
  • Valve Body Mapping

Language: English
Format: PDF
Pages: 91

Toyota/Lexus A761E – ATSG (Automatic Transmission Service Group) PDF free online