2. Jack up the car.
Table. Line pressure (A540N until 1994)
3. Unscrew the plug of the channel of the high-speed regulator and install a pressure gauge in its place.
Note:
- - check the adjustment of the throttle control cable.
- - Check tire pressure.
4. Do not apply the parking brake.
5. Start the engine.
6. Set the selector to position "D" and measure the speed regulator pressure as indicated in the table.
If the pressure does not match the specified values, then either fluid is leaking in the speed regulator circuit, or the speed regulator is faulty.