Inspection Procedure

WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.

If the CONSULT/GST cannot diagnose the system properly, check the following items.

Symptom	Possible cause	Check item
CONSULT cannot detect VI	Data link connector malfunction	Check the pins of data link connector.
	Power supply and ground circuit malfunction of data link connector	Check CONSULT/GST DLC power supply circuit and ground circuit.
	Battery voltage drop	Check the battery condition.
	Malfunction of VI itself	Check whether VI functions to the other vehicle or not.
CONSULT/GST cannot access to any systems.	3CH CAN gateway or 6CH CAN gateway power supply and ground circuit	Check the power supply and ground circuit of 3CH CAN gateway or 6CH CAN gateway.
	Communication line between data link connector and CAN communication circuit	Check the data link connector branch line circuit. Refer to Diagnosis Procedure .
	Diagnostic CAN communication circuit	Check the diagnostic CAN communication circuit. Refer to Diagnosis Procedure .
	3CH CAN gateway / 6CH CAN gateway malfunction	If above inspection results are normal, replace 3CH CAN gateway or 6CH CAN gateway. Refer to Removal and Installation .
CONSULT cannot access to one or some of the systems	Power supply and ground circuit of the inaccessible system's control unit. (For detailed circuit, refer to wiring diagram for each system)	Check the power supply and ground circuit of the inaccessible system's control unit.
CONSULT cannot access to one or some of the systems	CAN communication circuit	Check open or short circuit of CAN communication line. Refer to Trouble Diagnosis Flow Chart .