Nissan Sentra manuals

Nissan Sentra Service Manual: CONSULT Data Link Connector (DLC) Circuit

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 LAN-16, "Trouble Diagnosis Flow Chart".

NOTE:

The DDL2 circuits and CAN communication lines from DLC pins 6, 7 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 GI-49, "Wiring Diagram". For a complete CAN line layout, refer to LAN-33, "Wiring Diagram".

Function and System Application
x : Applicable With NAVI With CVT With auto A/C ...

Wiring diagram
Consult checking system Wiring Diagram ...

Other materials:

Dlc branch line circuit
Diagnosis procedure 1.Check connector Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection resul ...

Heater and air conditioner (automatic) (if so equipped)
Temperature control buttons (driver’s side) (front defroster) button (rear window defroster) button Display screen MODE (manual air flow control) button Fresh air intake button Air recirculation button Temperature control buttons (passenger’s side) DUAL button ...

Main line between dlc and av circuit
Diagnosis procedure 1.Check harness continuity (open circuit) Turn the ignition switch off. Disconnect the battery cable from the negative terminal. Disconnect the following harness connectors. ECM AV control unit Check the continuity between the data link connector and the av ...

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