Kia Sedona: Troubleshooting
Third generation YP (2014-2025) / Kia Sedona YP Service Manual / Automatic Transaxle System / Troubleshooting
| Troubleshooting |
| Limp Home Mode |
Features a fail-safe function that prevents dangerous
situations in the event of a transaxle failure.The vehicle will be
driven in limp home mode if the transaxle malfunctions. In this mode,
the transaxle operates at a minimal functionality level (fixed shifting,
limited shifting, reverse, neutral), making it possible for the vehicle
to reach a service center.
Limp Home Mode: Limited shifting
Mechanical limp home mode: Fixed shifting (failure as mechanical parts, solenoid valves, TCM, CAN communication) |
Troubleshooting
| Trouble symptom | Suspect area | Remedy |
| Shifting delay, Shifting shock, Poor acceleration | Damaged clutch / brake | Replace the brake or clutch. |
| Faulty hydraulic control | Inspect the solenoid valve. | |
| Faulty hydraulic supply | Inspect the fluid level. | |
| Inspect the fluid cleanliness | ||
| Replace the oil pump | ||
| Not performed TCM learning | Perform the TCM adaptive value learning. | |
| Mechanical limp home mode (locked into 4th, manual shifting disabled) | Faulty Solenoid valve | Inspect the solenoid valve. |
| Replace the valve body. | ||
| Faulty TCM | Replace the TCM. | |
| Faulty CAN communication | Inspect the CAN communication line. | |
| Limp home mode (locked into 4th, manual shifting 2nd-4th enabled) | Faulty input & output speed sensor | Replace the input & output speed sensor. |
| Limp home mode (1st-2nd shifting disabled, 3rd-6th shifting enabled) | Faulty inhibitor switch | Replace the inhibitor switch. |
| Manual shifting disabled | Faulty TCM | Replace the TCM. |
| Faulty connector connection | Check the connection of manual mode connector. | |
| Faulty manual mode switch | Replace the manual mode switch housing. |
Special Service Tools
Special Service Tools
Tool Name / NumberIllustrationDescriptionEngine support fixture (bar)09200-3N000Used for holding engine assembly when removing / installing transaxleUsed with the adapter (0 ...
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