Automatic Transmission - 6T70 (M7U M7W) Or 6T80 (Mhm) - 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
  • Tow/Haul Mode Description and Operation
  • Transmission Adaptive Functions
  • Transmission Indicators and Messages
  • Electronic Component Description
    • Control Solenoid (W/Body and TCM) Valve Assembly
    • Manual Shift Detent Lever with Shaft Position Switch Assembly (IMS)
    • Input Speed Sensor (ISS)
    • Output Speed Sensor (OSS)
  • Automatic Transmission Inline 20-Way Connector Description
  • Non-Shifting Clutch Function Verification Description
  • Cruise Grade Braking Description
    • Purpose
    • Activation
    • Function
  • 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 & 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 & 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 (6T70/75)
    • Control Solenoid (w/Body and TCM) Valve Assembly
    • Control Valve Channel Upper Plate Assembly
    • Control Valve Channel Plate - Upper Plate Side
    • Control Valve Channel Plate - Upper Body Spacer Plate Side
    • Control Valve Upper Body Spacer Plate Assembly
    • Control Valve Upper Body Assembly - Upper Body Spacer Plate Side
    • Control Valve Upper Body Assembly - Lower Body Spacer Plate Side
    • Control Valve Lower Body Spacer Plate Assembly
    • Control Valve Lower Body
    • A/Trans Case Assembly - Control Valve Body Side
    • A/Trans Case Assembly - Torque Converter and Differential Housing Side
    • A/Trans Case Assembly Case Cover Side
    • A/Trans Case Cover Assembly
    • Front Differential Transfer Drive Gear Support - Case Side
    • Front Differential Transfer Drive Gear Support - Torque Converter and Differential Housing Side
  • Fluid Passages (6T80)
    • Control Solenoid (w/Body and TCM) Valve Assembly
    • Control Valve Channel Upper Plate Assembly
    • Control Valve Channel Plate - Upper Plate Side
    • Control Valve Channel Plate - Upper Body Spacer Plate Side
    • Control Valve Upper Body Spacer Plate Assembly
    • Control Valve Upper Body Assembly - Upper Body Spacer Plate Side
    • Control Valve Upper Body Assembly - Lower Body Spacer Plate Side
    • Control Valve Lower Body Spacer Plate Assembly
    • Control Valve Lower Body
    • A/Trans Case Assembly - Control Valve Body Side
    • A/Trans Case Assembly - Torque Converter and Differential Housing Side
    • A/Trans Case Assembly Case Cover Side
    • A/Trans Case Cover Assembly
    • Front Differential Transfer Drive Gear Support - Case Side
    • Front Differential Transfer Drive Gear Support - Torque Converter and Differential Housing Side