FixVault

System Diagram

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: CAN Communication - System Diagram
G04879053Courtesy of NISSAN MOTOR CO., U.S.A.
COMPONENT DESCRIPTION REFERENCE

Name Harness Description
DDL1 Tx
Rx
It is used for trouble diagnosis. (CAN-H and CAN-L are used for controlling)
DDL2 K-LINE It is used for trouble diagnosis. (CAN-H and CAN-L are used for controlling)
Diag on CAN CAN-H
CAN-L
It is used for trouble diagnosis and control.