DTC B2790 Id Code Box Circuit: Trouble Symptom

WARNING: This page is about a different car, the 2016 Subaru Outback and 2016 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Engine will not start.

CAUTION: For replacement procedure of ID code box, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

DIAGNOSTICS PROCEDURE

Step	Check	Yes	No
1 CHECK DTC. Turn the ignition switch to OFF. Using the Subaru Select Monitor, clear the memory of «keyless access with push button start». < Ref. to CLEAR MEMORY MODE . > Turn the ignition switch to OFF → ON. Register the ID code box. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume. Read DTC using the Subaru Select Monitor. < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) . >	Is DTC B2790 displayed?	Replace the ID code box. < Ref. to ID CODE BOX . >	ID code box registration was not performed properly.