DTC B2789 Id Code Box Communication: DTC Detecting Condition
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.
- When communication between keyless access control module and ID code box is interrupted for a set amount of time.
- Open or short circuit in the wiring harness between keyless access control module and ID code box