DTC B1402 Immobilizer Key Collation NG

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to the following inspection for diagnostic procedure.

DTC P0513 "INCORRECT IMMOBILIZER KEY".< Refer to DTC P0513 INCORRECT IMMOBILIZER KEY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
DTC P1570 "ANTENNA".< Refer to DTC P1570 ANTENNA , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
DTC P1574 "KEY COMMUNICATION FAILURE".< Refer to DTC P1574 KEY COMMUNICATION FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >