Automatic Transmission Diagnosis

• Special Tools
• General Troubleshooting Information
  • How to Check for DTCs with the PGM Tester/Scan Tool
  • How to Check for DTCs
  • How to Troubleshoot Circuits at the PCM
  • How to Reset the PCM
  • How to End a Troubleshooting Session
• Diagnostic Trouble Codes Troubleshooting Index
• Symptom Troubleshooting Index
• System Description
  • General Operation
    • Notes
    • Torque Converter, Gears, and Clutches
    • Electronic Control
    • Hydraulic Control
    • Shift Control Mechanism
    • Lock-up Mechanism
    • Gear Selection
    • Automatic Transaxle (A/T) Gear Position Indicator
  • Clutches
    • Notes
    • 1st Clutch
    • 1st-hold Clutch
    • 2nd Clutch
    • 3rd Clutch
    • 4th Clutch
    • 5th Clutch
    • One-way Clutch
  • Power Flow
    • Notes
    • [P] Position
    • [N] Position
    • [1] Position
    • [ ], [ ] and [ ] Positions
    • [ ], [ ] or [ ] Position in 1st gear
    • [ ], [ ] or [ ] Position in 2nd gear and 2 Position
    • [ ], [ ] or [ ] Position in 3rd gear
    • [ ], or [ ] Position in 4th gear
    • [ ] Position in 5th gear
    • [R] Position
  • Electronic Control System
    • Functional Diagram
    • Electronic Controls Location
    • Shift Control
    • Ascending Control
    • Descending Control
    • Deceleration Control
    • Clutch Pressure Control
    • Lock-up Control
    • PCM Electrical Connections
    • PCM Inputs and Outputs
  • Hydraulic Controls
    • Notes
    • Main Valve Body
    • Regulator Valve Body
    • Regulator Valve
    • Servo Body
    • Top Accumulator Body
    • Accumulator Body
    • 3rd Accumulator
  • Hydraulic Flow
    • Distribution of Hydraulic Pressure
    • [N] Position
    • [ ] Position: 1st gear shifting from N position
    • [ ] Position: Driving in 1st gear
    • [ ] Position: Shifting between 1st gear and 2nd gear
    • [ ] Position: Driving in 2nd gear
    • [ ] Position: Shifting between 2nd gear and 3rd gear
    • [ ] Position: Driving in 3rd gear
    • [ ] Position: Shifting between 3rd gear and 4th gear
    • [ ] Position: Driving in 4th gear
    • [ ] Position: Shifting between 4th gear and 5th gear
    • [ ] Position: Driving in 5th gear
    • [2] Position
    • [1] Position
    • [R] Position: Shifting to R position from P or N position
    • [R] Position: Driving in reverse gear
    • Reverse Inhibitor Control
    • P Position
  • Lock-up System
    • Notes
    • Torque Converter Clutch Lock-up ON (Engaging Torque Converter Clutch)
    • Torque Converter Clutch Lock-up OFF (Disengaging Torque Converter Clutch)
    • No Lock-up
    • Partial Lock-up
    • Full Lock-up
    • Shift Lever/Sequential Sportshift Mode Mechanism
    • Shift Lock/Reverse Lock Mechanism
  • Circuit Diagram
• Diagnostic Trouble Codes Troubleshooting
  • Notes
  • DTC P0710: A Problem in ATF Temperature Sensor Circuit
  • DTC P0715: A Problem in Mainshaft Speed Sensor Circuit
  • DTC P0720: A Problem in Countershaft Speed Sensor Circuit
  • DTC P0730: Problem in Shift Control System
  • DTC P0740: Problem in Lock-up Control System
  • DTC P0743 (Premium), P1753 (Type S): Problem in Torque Converter Clutch Solenoid Valve Circuit
  • DTC P0748 (Premium), P1768 (Type S): Problem in A/T Clutch Pressure Control Solenoid Valve A Circuit
  • DTC P0753: Problem in Shift Solenoid Valve A Circuit
  • DTC P0758: Problem in Shift Solenoid Valve B Circuit
  • DTC P0763: Problem in Shift Solenoid Valve C Circuit
  • DTC P0778 (Premium), P1773 (Type S): Problem in A/T Clutch Pressure Control Solenoid Valve B Circuit
  • DTC P0780: Mechanical Problem In Hydraulic Control System Of Shift Solenoid Valve A & A/T Clutch Pressure Control Solenoid Valves A & B, Or Problem In Hydraulic Control System
  • DTC P0798 (Premium), P1778 (Type S): Problem in A/T Clutch Pressure Control Solenoid Valve C Circuit
  • DTC P0845 (Premium), P1739 (Type S): Problem in 3rd Clutch Pressure Switch Circuit
  • DTC P1656: Problem in PCM-To-VSA Control Unit Communications Circuit (Type S only)
  • DTC P1705: Short in Transmission Range Switch Circuit
  • DTC P1706: Open in Transmission Range Switch Circuit
  • DTC P1709: Problem in Transmission Gear Selection Switch Circuit
  • DTC P1710: Problem in 1st-hold Switch Circuit
  • DTC P1740: Problem in 4th Clutch Pressure Switch Circuit
  • DTC P1750: Mechanical Problem In Hydraulic Control System Of A/T Clutch Pressure Control Solenoid Valves A & B, Or Problem In Hydraulic Control System
  • DTC P1751: Mechanical Problem In Hydraulic Control System Of Shift Solenoid Valve B & A/T Clutch Pressure Control Solenoid Valves A & B, Or Problem In Hydraulic Control System
• Road Test
• Stall Speed Test
• Pressure Tests
• Torque Converter Clutch Solenoid Valve Test
• Torque Converter Clutch Solenoid Valve Replacement
• Shift Solenoid Valve B Test
• Shift Solenoid Valve B Replacement
• Shift Solenoid Valves A and C Test
• Shift Solenoid Valves A and C Replacement
• A/T Clutch Pressure Control Solenoid Valves A and B Test
• A/T Clutch Pressure Control Solenoid Valves A and B Replacement
• A/T Clutch Pressure Control Solenoid Valve C Test
• A/T Clutch Pressure Control Solenoid Valve C Replacement
• Speed Sensor Replacement
• 3rd Clutch Pressure Switch Replacement
• 4th Clutch Pressure Switch Replacement
• ATF Temperature Sensor Replacement
• A/T Gear Position Indicator
  • Component Location Index
  • Circuit Diagram
  • [D5] Indicator Circuit Troubleshooting
  • Sequential Sportshift Transmission Gear Selection Switch Circuit Troubleshooting
  • Sportshift Indicator Circuit Troubleshooting
  • Transmission Range Switch Test
  • Transmission Range Switch Replacement
  • Indicator Input Test
  • Indicator Bulb Replacement