Check Trunk Lid Latch Switch
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
For the inspection of the trunk lid latch switch, refer to "Trunk Lid Latch and Actuator Assembly" in the "SECURITY AND LOCKS". Ref. to SECURITY AND LOCKS>TRUNK LID LATCH AND ACTUATOR ASSEMBLY>INSPECTION