Automatic Transaxle System - General Information: Troubleshooting: Notes
Fault Diagnosis
Features a fail-safe mechanism that provides "limp-home" 4th gear hold to enable the vehicle to be driven to the owner's home or dealer shop.
NOTE:
- Fail-Safe: The TCM provides 4th gear hold and Reverse gear in the event of a malfunction.
- Limp Home: Maintains minimal functionality (Drive(4th gear hold), Reverse) in the event of a malfunction, making it possible for the vehicle to reach the dealer shop.
Troubleshooting
AUTOMATIC TRANSAXLE SYSTEM TROUBLESHOOTING
| Trouble symptom | Suspect area | Remedy |
|---|---|---|
| Shift delay | Damaged clutch / brake | Replace the brake or clutch. |
| Faulty hydraulic control | Inspect the solenoid valve. | |
| Faulty hydraulic supply | Check the fluid level. | |
| Not performed TCM learning | TCM learning is required. | |
| Vibration of the vehicle when shifting | Damaged clutch / brake | Replace the brake or clutch. |
| Not performed TCM learning | TCM learning is required. | |
| Faulty hydraulic control | Inspect the solenoid valve. | |
| Faulty hydraulic supply | Check the fluid level. | |
| Fixed gear (shift impossible) | Faulty hydraulic control | Inspect the solenoid valve. |
| Replace the solenoid valve or valve body. | ||
| Faulty harness & connector connection | Check the harness & connector of transaxle. | |
| Faulty TCM | Replace the TCM. | |
| Faulty CAN Communication | Inspect the CAN communication line. | |
| limited gear (shift possible) | Faulty inhibitor switch | Inspect the inhibitor switch. |
| Faulty input & output speed sensor | Inspect the input & output speed sensor. | |
| Faulty harness & connector connection | Check the harness & connector of transaxle. | |
| Poor acceleration | Faulty hydraulic control | Inspect the solenoid valve. |
| Faulty hydraulic supply | Check the fluid level. | |
| Faulty oil pump | Replace the oil pump. |