Inspection Procedure

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

Symptom	Check item
CONSULT cannot access any system.	CONSULT DLC power supply circuit (Terminal 8 and 16) and ground circuit (Terminal 4 and 5)
CONSULT cannot access individual system. (Other systems can be accessed.)	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 DLC (For detailed circuit, refer to WIRING DIAGRAM for each system.) Open or short circuit CAN communication line. Refer to "TROUBLE DIAGNOSIS FLOW CHART ".

NOTE: The DDL1 and DDL2 CAN communication lines from DLC pins 6, 7, 12, 13 and 14 may be connected to more than one system. A short in a DDL circuit or CAN lines connected to a control unit in one system may affect CONSULT access to other systems. For a complete DDL circuit layout, refer to one of the following:

"WIRING DIAGRAM - WITH AUTOMATIC DRIVE POSITIONER AND ICC SYSTEM "
"WIRING DIAGRAM - WITH AUTOMATIC DRIVE POSITIONER AND WITHOUT ICC SYSTEM "
"WIRING DIAGRAM - WITHOUT AUTOMATIC DRIVE POSITIONER "
For a complete CAN lines layout, refer to "WIRING DIAGRAM ".