Sunfire L4-2.2L VIN F (2002)
Information Bus: Description and Operation
General Description
DATA LINK CONNECTOR (DLC)
The Data Link Connector (DLC) terminal 2 contains the class 2 serial data link.
The DLC also provides a power source and Signal Ground for the scan tool as follows:
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Battery voltage at the DLC terminal 16 (circuit 40)
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Power Ground at terminal 4 (circuit 150)
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Signal Ground at terminal 5 (circuit 451)
CLASS 2 SERIAL DATA LINK
The class 2 serial data link allows the following modules to communicate with each other:
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The Body Control Module (BCM)
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The Electronic Brake Control Module (EBCM)
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The Instrument Panel Cluster (IPC)
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The Radio.
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The Powertrain Control Module (PCM)
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The inflatable restraint Sensing and Diagnostic Module (SDM)
The class 2 serial data link allows a scan tool to communicate with the above modules for diagnostic and testing purposes.
