Transmission and Drivetrain: Testing and Inspection

When any diagnostic trouble code (DTC) related to the automatic transmission is shown on the display, carry out the following basic check. After that, carry out the replacement or repair work.
1. ATF level check
2. Differential gear oil level check
3. ATF leak check
4. Differential gear oil leak check
5. Stall test
6. Line pressure test
7. Transfer clutch pressure test
8. Time lag test
9. Road test
10. Shift characteristics