DTC U007A-00: Module Communication Error (Can Bus No. 8) (Telematics Communication Unit): 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 U007A:00 (TELEMATICS COMMUNICATION UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Module communication error (CAN Bus No. 8)
Detection condition	The telematics communication unit detects a CAN BUS communication line (CAN Bus No. 8) malfunction.
Fail-safe	Not applicable
Possible cause	Malfunction in CAN bus communication line Telematics communication unit malfunction
System wiring diagram	Not applicable