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DIAG On CAN: System Diagram

WARNING: This page is about a different car, the 2011 Suzuki Equator. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DIAG On CAN - System Diagram
G06446788Courtesy of SUZUKI OF AMERICA CORP.
HARNESS DESCRIPTION

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.