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Immobilizer System

WARNING: This page is about a different car, the 2014 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Symptoms Note
Engine does not start < Ref. to ENGINE DOES NOT START , INSPECTION, Diagnostics with Phenomenon. >
< Ref. to DTC B2784 ANTENNA COIL FAULT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
< Ref. to DTC B278A ABNORMAL IMMOBILIZER POWER SUPPLY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
< Ref. to DTC B2785 LIN COMMUNICATION ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
Check the brake switch. < Ref. to INSPECTION , Stop Light Switch. >
Check the parking switch signal. < Ref. to INSPECTION , AT Shift Lock Solenoid and "P" Range Switch. >
Check the DTC of the ECM.
Cannot register the immobilizer. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".
Engine does not start with the remote engine starter. < Ref. to DTC B2779 REMOTE CONTROL ENGINE STARTER COMMUNICATION COLLATION NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >