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Home >> Saturn >> 2006 >> Vue Red Line, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Computer/Integrating Systems >> Diagnostic Information and Procedures >> Scan Tool Does Not Communicate with Keyword Data Line >> Circuit Description >> Notes
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Circuit Description: Notes

The Keyword protocol utilizes a single wire bi-directional data line between the modules and the scan tool. The message structure is a request and response arrangement. Keyword serial data is used for scan tool diagnostics only. The modules do not exchange data on this circuit. There are two independent Keyword serial data circuits connected to data link connector (DLC) terminals 7 and 12.

Keyword Serial Data to DLC pin 7

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