Envoy 2WD V6-4.3L VIN W (1998)
Information Bus: Description and Operation
Data Link Connector Circuit Description
Connecting the scan tool to the Data Link Connector (DLC) allows the scan tool to communicate with the following control modules:
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The powertrain control module
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The vehicle control module
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The supplemental inflatable restraint sensing and diagnostic module (SDM)
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The transfer case shift control module
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The electronic brake control module
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The body control module
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The electronic climate control module
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The memory seat module
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The instrument cluster
Monitor system operations for diagnostic purposes by connecting the scan tool to the DLC.
