Inspection Procedure

WARNING: This page is about a different car, the 2019 Infiniti Q50. 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 detected 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.
	Diagnostic CAN communication circuit	Check the diagnostic CAN communication circuit. Refer to Diagnosis Procedure .
	3CH CAN gateway or 6CH CAN gateway malfunction	If above inspection results are normal, replace 3CH CAN gateway or 6CH CAN gateway. 3CH CAN gateway: Refer to Removal and Installation . 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 appropriate System Wiring Diagram for each system.)	Check the power supply and ground circuit of inaccessible system's the 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 .