Automatic Transmission - 6L80/6L90 - Description And Operation

• Description and Operation
  • Definitions and Abbreviations
    • Throttle Positions
    • Shift Condition Definitions
    • Noise Conditions
    • Driver Shift Control
    • Transmission Abbreviations
  • Transmission Identification Information
  • Transmission General Description
  • Transmission Component and System Description
  • Shift Stabilization Description and Operation
  • Tow/Haul Mode Description and Operation
  • Transmission Adaptive Functions
  • Transmission Indicators and Messages
  • Electronic Component Description
    • Control Solenoid (W/Body and TCM) Valve Assembly
    • Internal Mode Switch (IMS)
    • Input Speed Sensor (ISS)
    • Output Speed Sensor (OSS)
  • Automatic Transmission Inline 16-Way Connector Description
  • Automatic Transmission Hydraulic Diagrams
    • Park - Engine Running
      • Notes
      • Fluid Pressure Directed in Preparation for a Shift
      • Park- Engine Running - A/T System Hydraulic Diagram
    • Reverse
      • Notes
      • Fluid Pressure Directed in Preparation for a Shift
      • Low and Reverse Clutch Applies
      • 3-5 Reverse Clutch Applies
      • Reverse - A/T System Hydraulic Diagram
    • Neutral - Engine Running
      • Notes
      • 3-5 Reverse Clutch Releases
      • Neutral- Engine Running - A/T System Hydraulic Diagram
    • Drive Range, First Gear Engine Braking
      • Notes
      • Fluid Pressure is Directed to the 1-2-3-4 Clutch and the Low and Reverse Clutch to Provide Engine Braking
      • 1-2-3-4 Clutch Applies
      • Drive Range, First Gear Engine Braking - A/T System Hydraulic Diagram
    • Drive Range, First Gear
      • Notes
      • Low & Reverse Clutch Releases
      • Drive Range, First Gear - A/T System Hydraulic Diagram
    • Drive Range, Second Gear
      • Notes
      • Second Clutch Applies
      • Drive Range, Second Gear - A/T System Hydraulic Diagram
    • Drive Range, Third Gear
      • Notes
      • 3-5 Reverse Clutch Applies
      • 2-6 Clutch Releases
      • Drive Range, Third Gear - A/T System Hydraulic Diagram
    • Drive Range, Third Gear Default
      • Notes
      • 1-2-3-4 Clutch Stays Applied
      • 3-5 Reverse Clutch Applied or Applies
      • Drive Range, Third Gear Default - A/T System Hydraulic Diagram
    • Drive Range - Fourth Gear
      • Notes
      • 4-5-6 Clutch Applies
      • 3-5 Reverse Clutch Releases
      • Drive Range, Fourth Gear - A/T System Hydraulic Diagram
    • Drive Range, Fifth Gear
      • Notes
      • 3-5 Reverse Clutch Applies
      • 1-2-3-4 Clutch Releases
      • Drive Range, Fifth Gear - A/T System Hydraulic Diagram
    • Drive Range, Fifth Gear Default
      • Notes
      • 3-5 Reverse Clutch Applies
      • 1-2-3-4 Clutch Releases or 2-6 Clutch Releases
      • Torque Converter Clutch Releases
      • Drive Range, Fifth Gear Default - A/T System Hydraulic Diagram
    • Drive Range, Sixth Gear
      • Notes
      • 2-6 Clutch Applies
      • 3-5 Clutch Releases
      • Drive Range, Sixth Gear - A/T System Hydraulic Diagram
  • Fluid Passages
    • Torque Converter Housing- Fluid Pump Cover Side
    • Fluid Pump Cover- Torque Converter Housing Side
    • Fluid Pump Cover - Case Side
    • Case- Top Channel Plate Side
    • Control Valve Upper Body Assembly - Case Side
    • Control Valve Upper Body Assembly - Bottom Channel Plate Side
    • Control Valve Upper Body Assembly - Control Solenoid Valve Assembly Side
    • Control Valve Lower Body Assembly - Control Valve Upper Body Assembly Side
    • Control Valve Body Spacer Plate Assembly - Bottom Channel Plate Side