DTC U0075-88: Module Communication Error (Can Bus No. 1) (BCM): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC U0075:88 (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Module communication error (CAN BUS No. 1)
Detection condition	The body control module (BCM) detects a CAN BUS communication line (CAN BUS No. 1) malfunction.
Fail-safe	Not applicable
Possible cause	Malfunction in CAN bus communication line
System wiring diagram	Not applicable