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DTC B1404: Immobilizer Sub Control Module Communication

WARNING: This page is about a different car, the 2023 Subaru Ascent. However, it is still accessible from the selected car via links, so may be relevant.

For detailed diagnosis procedure, refer to IMMOBILIZER (DIAG). Ref. to IMMOBILIZER (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC B1404 IMMOBILIZER SUB CONTROL MODULE COMMUNICATION .

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