Automatic Transmission - 6L45/6L50/6L80/6L90 - 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
  • Transmission Adaptive Functions
  • Transmission Indicators and Messages
  • Electronic Component Description
    • Notes
    • 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
        • Manual Valve
        • CBR1/C456 Pressure Control (PC) Solenoid 3
        • CBR1/C456 Clutch Regulator Valve
        • Shift Solenoid 1
        • TCC Regulator Valve and Shuttle Valve
        • #2 Ball Check Valve
        • Clutch Select Valve 2
        • Shift Solenoid 2
        • 3-5 Reverse Clutch Regulator Valve
        • #3 Ball Check Valve
        • Clutch Select Valve #3
      • Park - Engine Running
    • Reverse
      • Notes
      • Fluid Pressure Directed in Preparation for a Shift
        • Manual Valve
        • #2 Ball Check Valve
        • Clutch Select Valve 2
      • Low and Reverse Clutch Applies
        • Clutch Select Valve 3
        • Low and Reverse Clutch
        • #5 Ball Check Valve
      • 3-5 Reverse Clutch Applies
        • C35R Pressure Control Solenoid 2
        • 3-5 Reverse Clutch Regulator Valve
        • 3-5 Reverse Boost Valve
        • 3-5 Reverse Clutch
      • Reverse
    • Neutral - Engine Running
      • Notes
      • 3-5 Reverse Clutch Releases
        • Manual Valve
        • C35R Pressure Control Solenoid 2
        • 3-5 Reverse Clutch Boost Valve
        • 3-5 Reverse Clutch Regulator Valve
        • 3-5 Reverse Clutch
        • Clutch Select Valve 3
      • Neutral - Engine Running
    • 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
        • Manual Valve
        • Clutch Select Valve 2
        • Clutch Select Valve 3
        • #1 Ball Check Valve
        • #6 Ball Check Valve
      • 1-2-3-4 Clutch Applies
        • C1234 Pressure Control Solenoid 5
        • 1-2-3-4 Clutch Regulator Valve
        • 1-2-3-4 Clutch Boost Valve
        • 1-2-3-4 Clutch
      • Drive Range, First Gear Engine Braking
    • Drive Range, First Gear
      • Notes
      • Low & Reverse Clutch Releases
        • Shift Solenoid 1
        • Clutch Select Valve 2
        • CBR1/C456 Pressure Control Solenoid 3
        • CBR1/C456 Clutch Regulator Valve
        • #4 Ball Check Valve
        • #5 Ball Check Valve
        • #7 Ball Check Valve
        • Low and Reverse Clutch
      • Drive Range, First Gear
    • Drive Range, Second Gear
      • Notes
      • Second Clutch Applies
        • CB26 Pressure Control Solenoid 4
        • 2-6 Clutch Regulator Gain Valve
        • 2-6 Clutch Regulator Valve
        • 2-6 Clutch
      • Drive Range, Second Gear
    • Drive Range, Third Gear
      • Notes
      • 3-5 Reverse Clutch Applies
        • C35R Pressure Control Solenoid 2
        • 3-5 Reverse Clutch Boost Valve
        • 3-5 Reverse Clutch Regulator Valve
        • 3-5 Reverse Clutch
      • 2-6 Clutch Releases
        • CB26 Pressure Control Solenoid 4
        • 2-6 Clutch Regulator Valve
        • 2-6 Clutch
      • Drive Range, Third Gear
    • Drive Range, Third Gear Default
      • Notes
      • 1-2-3-4 Clutch Stays Applied
        • Shift Solenoid 2
        • Clutch Select Valve 3
        • 1-2-3-4 Clutch Regulator Valve
        • 1-2-3-4 Clutch
      • 3-5 Reverse Clutch Applied or Applies
        • C35R Pressure Control Solenoid 2
        • 3-5 Reverse Clutch Regulator Valve
        • 3-5 Reverse Clutch Boost Valve
        • 3-5 Reverse Clutch
      • Drive Range, Third Gear Default
    • Drive Range - Fourth Gear
      • Notes
      • 4-5-6 Clutch Applies
        • CBR1/C456 Pressure Control Solenoid 3
        • CBR1/C456 Clutch Regulator Valve
        • 4-5-6 Clutch Boost Valve
        • Clutch Select Valve 2
        • 4-5-6 Clutch
      • 3-5 Reverse Clutch Releases
        • C35R Pressure Control Solenoid 2
        • 3-5 Reverse Clutch Boost Valve
        • 3-5 Reverse Clutch Regulator Valve
        • 3-5 Reverse Clutch
      • Drive Range, Fourth Gear
    • Drive Range, Fifth Gear
      • Notes
      • 3-5 Reverse Clutch Applies
        • C35R Pressure Control Solenoid 2
        • 3-5 Reverse Clutch Boost Valve
        • 3-5 Reverse Clutch Regulator Valve
        • Clutch Select Valve 2
        • 3-5 Reverse Clutch
      • 1-2-3-4 Clutch Releases
        • C1234 Pressure Control Solenoid 5
        • 1-2-3-4 Clutch Regulator Valve
        • 1-2-3-4 Clutch Boost Valve
        • 1-2-3-4 Clutch
      • Drive Range, Fifth Gear
    • Drive Range, Fifth Gear Default
      • Notes
      • 3-5 Reverse Clutch Applies
        • C35R Pressure Control Solenoid 2
        • 3-5 Reverse Clutch Boost Valve
        • 3-5 Reverse Clutch Regulator Valve
        • 3-5 Reverse Clutch
        • Clutch Select Valve 3
      • 1-2-3-4 Clutch Releases or 2-6 Clutch Releases
        • C1234 Pressure Control Solenoid 5
        • 2-6 CB26 Pressure Control Solenoid 4
      • Torque Converter Clutch Releases
        • TCC Pressure Control Solenoid
      • Drive Range, Fifth Gear Default
    • Drive Range, Sixth Gear
      • Notes
      • 2-6 Clutch Applies
        • CB26 Pressure Control Solenoid 4
        • 2-6 Clutch Regulator Gain Valve
        • 2-6 Clutch Regulator Valve
        • 2-6 Clutch
      • 3-5 Clutch Releases
        • C35R Pressure Control Solenoid 2
        • 3-5 Reverse Clutch Boost Valve
        • 3-5 Reverse Clutch Regulator Valve
        • 3-5 Reverse Clutch
      • Drive Range, Sixth Gear
  • Fluid Passages