CHECK OUTPUT SIGNAL FROM TCM USING SUBARU SELECT MONITOR.

1) Lift up the vehicle.

2) Set the select lever to manual mode, and then hold it in 1st gear. Slowly increase the vehicle speed up to 15 km/h (9 MPH), and then return the accelerator pedal.

NOTE:

The speed difference between the front and rear wheels will illuminate the ABS warning light or VDC warning light, but this does not indicate a malfunction. If the warning light illuminates, delete the ABS or VDC memory after completing the AT control diagnosis.

3) Read the data of the low & reverse duty solenoid.

QUESTION
Is the measured value 55%?
Yes	No
Check for poor contact in the TCM and transmission harness or connectors, and repair the fault location.