DTC U0140: Lost Communication With Body Control Module
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.
DTC detecting condition:
When the ignition is ON, CAN data from body integrated unit is not received for 4 seconds or more.
Trouble symptom:
The headlight High does not illuminate. R wiper does not operate.
NOTE:
Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE