DTC U0077-88: Unit Communication Error (HS-Can) [Vehicle Control Module]: Outline

DTC U0077:88 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Unit communication error (HS-CAN)
Detection condition	The vehicle control module (VCM) determines a BUS OFF condition for the CAN BUS No. 6 communication line for 10 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause	Malfunction in CAN BUS No. 6 communication line Malfunction in modules on CAN BUS No. 6 communication line Vehicle control module (VCM) malfunction (built into body control module (BCM)) Body control module (BCM) malfunction
System wiring diagram	Not applicable