I ran across this so I thought there was alot of good info there. Toyota Technical Info Technical Articles Toyota Series - Electrical 01 Electrical Fundamentals with questions.pdf file size 401KB 02 Electrical Circuits with questions.pdf file size 319KB 03 Electrical Components with questions.pdf file size 517KB 04 Analog vs Digital Meters with questions.pdf file size 35KB 05 Wire, Terminal and Connector Repair w/qu.pdf file size 270KB 06 Automotive Batteries with questions.pdf file size 741MB 07 Toyota Starting Systems with questions.pdf file size 870KB 08 Toyota Charging Systems with questions.pdf file size 850KB 09 Understanding Toyota Wiring Diagram.pdf file size 1.9MB 10 Electrical Diagnostic Tools.pdf file size 784KB 11 Diagnosing Body Electrical Problems.pdf file size 1.31MB 12 Semiconductors with questions.pdf file size 216KB 13 Transistors with questions.pdf file size 42KB 14 Computers / Logic Gates with questions.pdf file size 205KB 15 Overview of Sensors & Actuators w/quest.pdf file size 287KB 16 Electronic Transmission #1 - Operation.pdf file size 574KB 17 Electronic Transmission #2 - Diagnosis w/quest.pdf file size 287KB 18 Shift Interlock System.pdf 241KB Technical Articles Toyota Series - Engine Performance OBD 20 EFI#1 EFI System Overview.pdf file size 349KB 21 EFI#2 Air Induction System.pdf file size 500KB 22 EFI#3 Fuel Delivery & Injection Controls.pdf file size 727KB 23 EFI#4 Ignition System.pdf file size 435KB 24 Engine Controls #1 - Input Sensors.pdf file size 793KB 25 Engine Controls #2 - ECU/Outputs.pdf file size 495KB 26 Engine Controls #3 - Idle Speed Control.pdf file size 352KB 27 Engine Controls #4 - Diagnosis.pdf file size 446KB Technical Articles Toyota Series - Engine Performance OBD-II 31 Sensors#1 - Mode Sensors and Switches.pdf file size 201KB 32 Sensors#2 - Thermistors with questions.pdf file size 205KB 33 Sensors#3 - Position Sensors with questions.pdf file size 282KB 34 Sensors#4 - Air Flow Sensors with questions.pdf file size 302KB 35 Sensors#5 - Pressure Sensors with questions.pdf file size 261KB 36 Sensors#6 - Speed Sensors with questions.pdf file size 283KB 37 Sensors#6 - Oxygen / Air Fuel Sensors w/ques.pdf file size 328KB 38 Sensors#8 - Knock Sensors with questions.pdf file size 55KB 39 Ignition#1 - Ignition Overview w/questions.pdf file size 239KB 40 Ignition#2 - Electronic Spark Advance w/quest.pdf file size 223KB 41 Ignition#3 - Distributor / Distributorless w/qu.pdf file size 664KB 42 Fuel System#1 - Overview with questions.pdf file size 721KB 43 Fuel System#2 - Injection Duration w/ques.pdf file size 173KB 44 Fuel System#3 - Closed Loop /Fuel Trim w/qu.pdf file size 112KB 46 OBDII#1 - Overview of On-Board Diagnostics.pdf file size 331KB 47 OBDII#2 - Serial Data.pdf file size 289KB 48 OBDII#3 - Data Interpretation.pdf file size 304KB 55 Emission#1 - Chemistry of Combustion.pdf file size 301KB 56 Emission#2 - Emission Analysis.pdf file size 292KB 57 Emission#3 - Engine Sub Systems.pdf file size 180KB 58 Emission#4 - Closed Loop Feedback Systems.pdf file size 233KB 59 Emission#5 - Electronic Spark Advance.pdf file size 130KB 60 Emission#6 - Idle Speed Control Systems.pdf file size 118KB 61 Emission#7 - Exhaust Gas Recirculation.pdf file size 227KB 62 Emission#8 - Evaporative Emission Control.pdf file size 148KB 63 Emission#9 - Positive Crankcase Ventilation.pdf file size 126KB 64 Emission#10 - Catalytic Converter.pdf file size 316KB 65 Emission#11 - Secondary Air.pdf file size 107KB Technical Articles Toyota Series - Hybrid Hybrid01 Hybrid System Overview.pdf 579KB Hybrid02 Hybrid System Operation.pdf 877KB Hybrid03 High-Voltage battery.pdf 318KB Hybrid04 Engine.pdf 796KB Hybrid05 Chassis.pdf 345KB Hybrid06 Body Electrical.pdf 345KB Hybrid07 Appendix.pdf 32KB Technical Articles Toyota Series - Hybrid Diagnosis Hybrid11 Principles of Operation.pdf 274KB Hybrid12 Engine Control System.pdf 409KB Hybrid13 Fuel and EVAP System.pdf 691KB Hybrid14 Hybrid Vehicle Control System.pdf 714KB Hybrid15 HV Battery Control System.pdf 401KB Hybrid16 Brake System.pdf 190KB Hybrid17 Electric Power System.pdf 210KB Hybrid18 Other Systems.pdf 163KB Hybrid19 Appendix.pdf 84KB Technical Articles Toyota Series - Automatic Transmissions AT01 Fundamentals of Automatic Transmissions.pdf 144KB AT02 Torque Converter.pdf 478KB AT03 Simpson Planetary Gear Unit.pdf 380KB AT04 Gear Selection and Function.pdf 20KB AT05 Power Flow.pdf 1211KB AT06 Automatic Transmission Fluid.pdf 27KB AT07 Transmission Oil Pump.pdf 136KB AT08 valve Body Circuits.pdf 963KB AT09 A340H Transfer.pdf 60KB AT10 Electrical Control.pdf 308KB AT11 Transmission Check, Adjustments and Diagnosis.pdf 170KB AT12 Shift Lock System.pdf 186KB AT13 Appendix.pdf 1290KB Technical Articles Toyota Series - Automatic Transmissions AT21 Automatic Transmission Basics.pdf 1723KB AT22 U-Series Transaxle.pdf 947KB AT23 Valve Body Circuits.pdf 610KB AT24 Electronic Control System.Pdf 860KB AT25 Diagnostic Procedures.pdf 621KB AT26 Diagnostic Tester.pdf 485KB AT27 Remanufactured Transmission.pdf 186KB AT28 Appendix.pdf 339KB Technical Articles Toyota Series - Electrical (623 Training Course) Elec01 Essential Electrical Concepts.pdf 774KB Elec02 Electrical Circuits.pdf 1244KB Elec03 The Battery.pdf 785KB Elec04 The Starting System.pdf 1359KB Elec05 The Charging System.pdf 911KB Elec06 Introduction to Electrical Signals.pdf 388KB Elec07 Appendix.pdf 107KB Elec11 Electrical Circuit Theory.pdf 1100KB Elec12 Using the Electrical Wiring Diagram.pdf 1853KB Elec13 Electrical Diagnostic Tools.pdf 498KB Elec14 Six-Step Troubleshooting Plan.pdf 808KB Elec15 Diagnosing Body Electrical Problems.pdf 750KB Elec16 General Development of Multiplexing.pdf 388KB Elec17 Appendix.pdf 59KB Technical Articles Toyota Series - Brakes Brake01 Fundamental Principles.pdf 194KB Brake02 Master Cylinder.pdf 420KB Brake03 Drum Brakes.pdf 337KB Brake04 Disc Brakes.pdf 268KB Brake05 Brake Booster.pdf 608KB Brake06 Parking Brake.pdf 224KB Brake07 Brake Diagnosis.pdf 319KB Brake08 Hydraulic Control.pdf 553KB Brake09 Anti-Lock Brakes.pdf 834KB Brake10 ABS Diagnosis.pdf 327KB Brake11 Other ABS Actuators.pdf 1041KB Brake12 Traction Control System (TRAC).pdf 1357KB Brake13 Appendix.pdf 193KB Technical Articles Web Series - these are the online instruction modules from this site Control Devices.pdf 190KB Circuit Protection.pdf 683KB Understanding Relays with questions.pdf 550KB Battery Basics v1.1.pdf 531KB Battery Service v1.1.pdf 478KB