Subaru Legacy BN/BS (2015-2019) Service Manual: Transmission gear oil

Inspection

If the filter is clogged, or if the replacement interval has been reached, replace it. ...

Replacement

Refer to “6MT” section for transmission gear oil replacement. Transmission Gear Oil > REPLACEMENT ...

Other materials:

Dtc u0122 lost communication with vehicle dynamics control module
DTC DETECTING CONDITION:No data from VDCCM is received.TROUBLE SYMPTOM:ABS warning light and VDC warning light illuminate.STEPCHECKYESNO1.CHECK PERFORMING OF BASIC DIAGNOSTIC PROCEDURE.Was the basic diagnostic procedure performed up to STEP 8- Diagnostic Procedure with Diagnostic Trouble Code (DTC) ...