DTC Detection Logic

DTC		CONSULT screen terms		DTC detection condition
		(Trouble diagnosis content)	[Malfunction type]
U0019	88	Interior CAN communication (Interior CAN communication has a malfunction)	BUS OFF	1	Diagnosis condition	Ignition switch ON (After ignition switch ON, wait for 5 seconds to start the engine)
					Signal (terminal)	CAN communication signal
					Threshold	Bus-off the CAN communication
					Diagnosis delay time	5 seconds or more
				2	Diagnosis condition	Network communication
					Signal (terminal)	CAN communication signal
					Threshold	CAN controller reports Bus-off
					Diagnosis delay time	5 seconds or more

NOTE:

The affected control unit must not be replaced.
A bus OFF error code is set if the control unit cannot transmit a certain number of messages to the CAN bus or if the messages are incomplete.
The control unit then shuts itself off from the CAN bus for a short time.