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Home >> Chevrolet >> 2002 >> Tracker 2D Utility, 4WD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> Scan Tool Does Not Communicate With SDM >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2000 Chevrolet Tracker and 1999 Chevrolet Tracker. However, it is still accessible from the selected car via links, so may be relevant.

DLC is provided to allow scan tool to communicate with SDM. DLC provides for convenient connection point between scan tool and SDM. SDM communicates serial data and is provided battery power and ground connections. See WIRING DIAGRAMS . DLC allows scan tool to access data list information, read diagnostic trouble codes and clear diagnostic trouble codes.

NOTE: For circuit tracing and wire color identification, See WIRING DIAGRAMS .
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