Automatic Transmission Diagnosis - With Codes

• Application
• Identification
• Description
  • General
  • Automatic Transmission
    • Notes
    • Torque Converter Housing
    • Intermediate Plate
    • Automatic Transmission Housing
    • Valve Block
    • Rear Extension Housing
    • Automatic Transmission Power Flows
  • Electronic Automatic Transmission Electronic Control Unit
  • Gear Position Switch
  • Gear Ratios
  • Gear Selector Cable
  • Gear Selector Lever Assembly
  • Lock-Up Solenoid Valve (MV3) & Shift Control Solenoid Valves (MV1 & MV2)
  • Pressure Regulator Solenoid Valve
  • Transmission Fluid Cooler
• Operation
  • General
  • Diagnostics
    • Notes
    • Controller Area Network
    • On Board Diagnostic System
  • Compensation For Reduced Engine Torque
  • Gear Selector Lever Interlock
  • High/Low Range
  • KICKDOWN
  • Mode Select
    • Notes
    • Sport Mode
    • Manual Mode
  • Shift Control
  • Torque Converter Lock-Up
  • Towing/Steep Gradients
• Component Locations
• Trouble Shooting
  • Notes
  • Preliminary Inspection
  • Symptom Diagnosis
    • Notes
    • Abrupt Or Jerky Gear Changes
    • Harsh Gear Changes, Poor Gear Selection, Gear Slip Or Loss Of Drive Or Intermittent Failure Of Park Lock Function
    • Large Amount Of Friction Material In Pan Or On Filter Screen
    • Loss Of Drive Or Slipping Transmission
    • Transmission Fluid Leaking Out Of Dipstick Tube
    • Transmission Shifting Erratically
    • Transmission Slipping On Acceleration, Erratic Upshifts, Vehicle Jerking While Accelerating Or Engine Revs (Flares) On Upshift
• Performance Tests
  • Torque Converter Road Test
  • Hydraulic Pressure Tests
  • Stall Speed Test
  • Clutch & Servo Air Checks
• Self-Diagnostic System
  • Test Procedure
  • Power Or Communication Lost To Electronic Automatic Transmission Electronic Control Unit
  • Retrieving Diagnostic Trouble Codes
  • System Monitors
    • Notes
    • End Of Line Programming Monitoring
    • Gear Ratio Functional Check Monitoring
    • Pressure Regulator Solenoid Monitoring
    • Shift Solenoids Monitoring
    • System Interface Monitoring
    • Torque Converter Clutch Solenoid Monitoring
    • Transmission Control Module Monitoring
  • Diagnostic Trouble Code Definitions
  • Clearing Diagnostic Trouble Codes
  • Summary
• Diagnostic Tests
  • Fault Code 01: Transmission Relay Control (Relay Sticks, Short Circuit)/Solenoid Valves Power Supply Relay Sticking Open Or Short Circuit
  • Fault Code 02: Transmission Relay Control (Relay Sticks, Open Circuit)/Solenoid Valves Power Supply Relay Sticking Closed Or Open Circuit
  • Fault Code 03: EEPROM Communication Fault/Ecu Fault, EEPROM Communication
  • Fault Code 04: EEPROM Checksum Fault/Ecu EEPROM Checksum
  • Fault Code 05: Torque Converter Lock-Up Clutch Monitoring/Torque Converter Lock-Up Clutch Fault
  • Fault Code 06: Watchdog Check, Ecu Fault
  • Fault Code 08: Solenoid Valve 1 Check (Short Circuit To Voltage)/Shift Solenoid (MV1) Short Circuit
  • Fault Code 09: Solenoid Valve 2 Check (Short Circuit To Voltage)/Shift Solenoid (MV2) Short Circuit
  • Fault Code 10: Pressure Regulator Check (Short Circuit To Voltage)/Pressure Regulating Solenoid (MV4) Short Circuit
  • Fault Code 11: Can Message MD-REIB Invalid (FFH)/Can Message: Engine Friction Invalid
  • Fault Code 12: MES Line 1 Fault/BECM To Message Center Circuit Fault
  • Fault Code 13: MES Line 2 Fault/BECM To Message Center Circuit Fault
  • Fault Code 14: Gear Position Switch Monitoring (Permanent)/Gear Position Switch Incorrect Outputs
  • Fault Code 15: Can Level Monitoring
  • Fault Code 16: Can Bus Monitoring/Can Bus Fault
  • Fault Code 17: Can Time-Out Monitoring
  • Fault Code 18: Can Message WFPDK (Throttle Angle) In Invalid (FFH)/Can Message: Throttle Position Invalid
  • Fault Code 19: Can Message T-Mot Invalid (FFH)/Can Message: Engine Temperature Invalid
  • Fault Code 20: Can Message V3 (Road Speed) Invalid (FFH)/Can Message: Road Speed Invalid
  • Fault Code 21: Downshift Safety Monitoring/Downshift Safety Monitor Prevented Downshift Which Would Have Caused Engine OVERSPEED
  • Fault Code 22: Stall Speed Monitoring/Torque Converter Slipping
  • Fault Code 23: Gear Position Switch During Cranking/Gear Position Switch Incorrect Outputs
  • Fault Code 24: Battery Supply Check/Battery Supply Below 9 Volts While Engine Is Running
  • Fault Code 25: Solenoid Valve For TC (Short Circuit To Ground, Or Open Circuit)/Torque Converter Lock-Up Solenoid (MV3) Open Circuit
  • Fault Code 26: Solenoid Valve 1 (Line Short Circuit Ground, Or Open Circuit)/Shift Solenoid (MV1) Open Circuit
  • Fault Code 27: Solenoid Valve 2 (Line Short Circuit Ground, Or Open Circuit)/Shift Solenoid (MV2) Open Circuit
  • Fault Code 28: Pressure Regulator (Line Short Circuit To Ground, Or Open Circuit)/Pressure Regulating Solenoid (MV4) Open Circuit
  • Fault Code 29: Gear Ratio Monitoring, 1ST Gear/Ratio Monitoring Implausible 1ST Gear Ratio
  • Fault Code 30: Gear Ratio Monitoring, 2ND Gear/Ratio Monitoring Implausible 2ND Gear Ratio
  • Fault Code 31: Gear Ratio Monitoring, 3RD Gear/Ratio Monitoring Implausible 3RD Gear Ratio
  • Fault Code 32: Gear Ratio Monitoring, 4TH Gear/Ratio Monitoring Implausible 4TH Gear Ratio
  • Fault Code 33: Can Message MD-Ind Invalid, Indicated By F-TL-MES/Can Message: Engine Torque Invalid
  • Fault Code 34: Can Message MD-Ind Invalid (FFH)/Can Message: Engine Torque Invalid
  • Fault Code 35: Can Message N-Mot Invalid, Indicated By F-N-Mot/Can Message: Engine Speed Invalid
  • Fault Code 37: Can Message T-Ans Invalid (FFH)/Can Message: Engine Air Intake Temperature Invalid
  • Fault Code 38: Can Message FHOEHE Invalid (FFH)/Can Message: Altitude Shift Control Invalid
  • Fault Code 39: Range Switch Plausibility Error/Transmission High/Low Range Implausible Input
• Special Tools
• Connector Identification
• Wiring Diagrams