CONSULT-II Data Link Connector (DLC) Circuit

WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: CONSULT-II Data Link Connector (DLC) Circuit

Courtesy of NISSAN MOTOR CO., U.S.A.

INSPECTION PROCEDURE

If the CONSULT-II cannot diagnose the system properly, check the following items.

SYMPTOM CHART

Symptom	Check item
CONSULT-II cannot access any system.	CONSULT-II DLC power supply circuit (Terminal 8) and ground circuit (Terminal 4) CONSULT-II DLC cable
CONSULT-II cannot access individual system. (Other systems can be accessed.)	CONSULT-II program card (Check the appropriate CONSULT-II program card for the system. Refer to "CHECKING EQUIPMENT ". Power supply and ground circuit for the control unit of the system (For detailed circuit, refer to wiring diagram for each system.) Open or short circuit between the system and CONSULT-II DLC (For detailed circuit, refer to wiring diagram for each system.)

NOTE: The DDL1 and DDL2 circuits from DLC pins 12, 13, 14 and 15 may be connected to more than one system. A short in a DDL circuit connected to a control unit in one system may affect CONSULT-II access to other systems.