Fail-Safe Function

4F20E transaxle is equipped with a fail-safe control system. Fail-safe function is controlled by TCM and is designed to allow transaxle operation when damage to transaxle is detected. Fail-safe function will be activated if damage to any of the following components is detected.

• Coasting Clutch Solenoid
• Line Pressure Solenoid
• Transmission Range (TR) Sensor
• Shift Solenoids "A" or "B"
• Throttle Position (TP) Sensor
• Torque Converter Clutch (TCC) Solenoid
• Vehicle Speed Sensor (VSS)
• Output Shaft Speed (OSS) Sensor

Fail-safe function can also be activated by excessive wheel spin.