DTC U1711: Lost Communication With Battery "2" Monitor Module: Trouble Symptom

WARNING: This page is about a different car, the 2015 Subaru XV Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.

EV traveling/Auto Start Stop does not operate.
Charge warning light illuminates.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". < Ref. to CAUTION , General Description.>

NOTE: This DTC may be set when terminals of the 12 volt engine restart battery are disconnected.