Lock Up Function

Check that rpm does not change sharply when the accelerator pedal is lightly depressed while driving in "D" range on flat roads at 60 km/h (37 MPH).
Check slip lock up with following procedure. Subaru Select Monitor is required for judgment. Before starting the check, make sure that no DTC is displayed using the Subaru Select Monitor. If there is a DTC, perform the corrective action according to the DTC, and perform the check after reconfirming that there is no DTC.

The check is to be performed on a flat and straight road or on a free roller.
NOTE:
- Slip lock up will not operate when the vehicle is lifted up off of its wheels, since there is no surface resistance.
- Even when checking on the free roller, the driving resistance will be slightly inadequate. It will be easier to check if the foot brake is stepped on lightly while performing the judgment.
Connect the Subaru Select Monitor.
Check the ATF temperature using the Subaru Select Monitor.
NOTE:
- Make sure that the ATF temperature is between 50 - 100°C (122 -212°F).
- If the temperature is low, warm-up the ATF by running the vehicle.
Start the engine, so that the lock up duty can be read on the data display of the Subaru Select Monitor.
Drive the vehicle at a constant speed of 35 - 40 km/h (22 - 25 MPH).
Read the lock up duty while vehicle is running.
Specification: 25 - 45%
NOTE:
- Slip lock up control is not operating when the lock up duty is less than 5%, or when the lock up duty goes down immediately after starting to rise. In these cases, improper ATF or deterioration of the ATF may be the cause. Check the amount of ATF or replace the fluid, then recheck.
- The reading may be slightly lower on a free roller.