Diagnosis - Automatic Transmission

• Description
  • General
  • COMMANDSHIFT JATCO Automatic Gearbox
  • Gearbox Casing
  • Valve Block & Solenoid Valves
  • On/Off Solenoid Valves
  • Duty Solenoid Valves
  • Power Flows
    • 1st Gear (Drive Selected)
    • 2nd Gear (Drive Selected)
    • 3rd Gear (Drive Selected)
    • 4th Gear (Drive Selected)
    • 5th Gear (Drive Selected)
    • Reverse Gear
  • Torque Converter
    • Torque Converter Operation
    • Torque Converter Lock-Up Mechanism
    • Unlock Condition
    • Lock-Up Condition
    • Smooth Lock-Up
  • Fluid Cooling
  • Sensors
    • Notes
    • Intermediate Speed Sensor
    • Turbine Speed Sensor
    • Vehicle Speed Sensor
    • Fluid Temperature Sensor
  • Selector & Inhibitor Switch
  • Gear Selector Lever Assembly
    • Gear Selector Lever
    • Sport/Manual Switch
    • Shift Interlock Solenoid
    • LED Module
    • Selector Cable
    • Brake Switch
  • Instrument Pack
    • Instrument Pack Displays
    • Malfunction Indicator Lamp (MIL)
    • Liquid Crystal Display (LCD)
  • Electronic Automatic Transmission
  • Eat Ecu Connector C0932 Pin Details
  • Main Relay
  • Diagnostics
  • Diagnostic Trouble Codes (DTC)
  • Controller Area Network (Can)
    • Controller Area Network (CAN) Bus
    • EAT ECU CAN Messages
    • CAN Inputs
      • Actual Engine Torque
      • Engine Coolant Temperature
      • Engine Friction
      • Engine Speed
      • Engine Speed Signal Error
      • Engine Torque Error
      • Estimated Engine Torque
      • Ignition Switch Status
      • Throttle Angle
      • Engine MIL Status
      • Hill Descent Activity Status
      • Virtual Throttle Position (Diesel Only)
    • CAN Outputs
      • Cooling Request
      • Current/Target Gear
      • Gear Selector Lever Position
      • Gear Shift In Progress
      • Gearbox Fault Status
      • Torque Reduction Request
      • Gearbox MIL Status
      • Gear Shift Mode
• Operation
  • General
  • Gear Shift Scheduling
  • Lock-Up Control
  • Line Pressure Control
  • Driving Modes
    • Notes
    • Normal Mode
    • Sport Mode
    • Manual (CommandShift) Mode
    • HDC Mode
    • Cruise Mode
  • Reverse Inhibit
  • Hill Mode
  • Downhill Recognition
  • Cooling Strategy
  • Engine Cooling Fan
  • Diagnostics
  • Gearbox Fault Status
  • Engine Speed & Throttle Monitoring
• Component Locations
• On-Board Diagnostics
  • Introduction
    • Notes
    • Diagnostic Trouble Codes & Freeze Frames
    • Inputs & Outputs
  • Transmission Control Module
  • Controller Area Network (Can)
  • Solenoid Valves
    • Description
    • On/Off Solenoid Valves
    • Duty Solenoid Valves
    • Solenoid Valve Diagnostic Checks
  • Transmission Range Sensor (PRND421)
  • Gear Ratio Functional Check
  • Transmission Fluid Temperature Sensor
  • Torque Converter Clutch
  • Turbine Shaft Speed Sensor
  • Output Shaft Speed Sensor
  • Intermediate Shaft Speed Sensor - Up To 2004MY
• Diagnostic Tests
  • Notes
  • Eat JATCO Fault P0702 - Earth Return
    • DTC P0702 - GND Return Short Circuit To Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P0705 - Inhibitor Switch
    • DTC P0705 - Inhibitor Switch Input Multiple Signal Or No Signal
      • Possible Causes
      • Check
  • Eat JATCO Fault P0710 - ATF Temperature Sensor
    • DTC P0710 - ATF Temperature Sensor Signal Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0715 - Turbine Speed Sensor
    • DTC P0715 - Turbine Sensor No Signal
      • Possible Causes
      • Check
  • Eat JATCO Fault P0720 - Vehicle Speed Sensor
    • DTC P0720 - Vehicle Speed Sensor No Signal
      • Possible Causes
      • Check
  • Eat JATCO Fault P0730 - Torque Converter Clutch
    • DTC P0730 - Torque Converter Lock-Up Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0731 - 1ST Gear Ratio Invalid
    • DTC P0731 - 1st Gear Ratio Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0732 - 2ND Gear Ratio Invalid
    • DTC P0732 - 2nd Gear Ratio Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0733 - 3RD Gear Ratio Invalid
    • DTC P0733 - 3rd Gear Ratio Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0734 - 4TH Gear Ratio Invalid
    • DTC P0734 - 4th Gear Ratio Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0735 - 5TH Gear Ratio Invalid
    • DTC P0735 - 5th Gear Ratio Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0736 - Reverse Gear Ratio Invalid
    • DTC P0736 - Reverse Gear Ratio Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0740 - Lock-Up Clutch Failure
    • DTC P0740 - Lock-Up Clutch Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P0743 - Lock-Up Duty Solenoid
    • DTC P0743 - Lock-Up Duty Solenoid Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P0748 - Line Pressure Duty Solenoid
    • DTC P0748 - Line Pressure Duty Solenoid Open Circuit, Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P0753 - "A" Shift Solenoid
    • DTC P0753 - "A" Shift Solenoid Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P0758 - "B" Shift Solenoid
    • DTC P0758 - "B" Shift Solenoid Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P0763 - "C" Shift Solenoid
    • DTC P0763 - "C" Shift Solenoid Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P0790 - Mode Switch
    • DTC P0790 - Mode Switch Input Multiple Signal
      • Possible Causes
      • Check
  • Eat JATCO Fault P1562 - Power Supply
    • DTC P1562 - Power Supply Voltage Out Of Range
      • Possible Causes
      • Check
  • Eat JATCO Fault P1602 - Transmission Calibration
    • DTC P1602 - Transmission Calibration - Selection Incorrect/Invalid
  • Eat JATCO Fault P1605 - EEPROM Fault
    • DTC P1605 - EEPROM Error Flag Set
      • Possible Causes
      • Check
  • Eat JATCO Fault P1715 - Intermediate Speed Sensor
    • DTC P1715 - Intermediate Speed Sensor No Signal
      • Possible Causes
      • Check
  • Eat JATCO Fault P1717 - Low Clutch Timing Solenoid
    • DTC P1717 - Low Clutch Timing Solenoid Out Of Range
  • Eat JATCO Fault P1718 - Reduction Timing Solenoid
    • DTC P1718 - Reduction Timing Solenoid Out Of Range
  • Eat JATCO Fault P1719 - 2/4 Brake Timing Solenoid
    • DTC P1719 - 2/4 Brake Timing Solenoid Out Of Range
  • Eat JATCO Fault P1748 - 2/4 Brake Duty Solenoid
    • DTC P1748 - 2/4 Brake Solenoid Open Circuit, Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P1776 - TCM Torque Down Request To ECM Has Failed
    • DTC P1776 - TCM Torque Down Request To ECM Out Of Range
  • Eat JATCO Fault P1785 - Clutch Timing Solenoid
    • DTC P1785 - Clutch Timing Solenoid Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P1786 - RDCN Timing Solenoid
    • DTC P1786 - Reduction Timing Solenoid Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P1787 - 2/4 Brake Timing Solenoid
    • DTC P1787 - 2/4 Brake Timing Solenoid Open Circuit, Short Circuit To Ground Or Battery
      • Possible Causes
      • Check
  • Eat JATCO Fault P1815 - TIPTRONIC Signal
    • DTC P1815 - Tiptronic Inputs Multiple Signal Or No Signal
      • Possible Causes
      • Check
  • Eat JATCO Fault P1825 - Shift Interlock Failure
    • DTC P1825 - Shift Interlock ECU, Interlock Failure
      • Possible Causes
      • Check
  • Eat JATCO Fault P1840 - Can Bus Malfunction
    • DTC P1840 - CAN Bus Malfunction
      • Possible Causes
      • Check
  • Eat JATCO Fault P1841 - Can Bus Malfunction
    • DTC P1841 - CAN Bus Monitoring, Bus Off
      • Possible Causes
      • Check
  • Eat JATCO Fault P1842 - Can Bus Malfunction
    • DTC P1842 - CAN Level Monitoring, Incompatible
      • Possible Causes
      • Check
  • Eat JATCO Fault P1843 - Can Bus Malfunction
    • DTC P1843 - CAN Timeout Monitoring, Missing Nodes Detected
      • Possible Causes
      • Check
  • Eat JATCO Fault P1844 - Engine Sensors
    • DTC P1844 - Engine RPM Error Flag Set
      • Possible Causes
      • Check
• Wiring Diagrams
  • Notes
  • Wire Colors