DTC B177A Buckle Switch Circuit Low: DTC Detecting Condition

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

Passenger's buckle switch circuit is open, shorted or shorted to ground.
Seat harness circuit is open, shorted or shorted to ground.
Occupant detection control module is faulty.

For the diagnostic procedure, refer to DTC B177E. <Ref. to DTC B177E BUCKLE SWITCH RANGE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).>