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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 1109 (Data Communications System) >> Diagnostic Information and Procedures >> Scan Tool Does Not Communicate with Keyword Data Line >> Circuit/System Description
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Circuit/System Description

WARNING: This page is about a different car, the 2012 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The telematic vehicle localization and immobilization control module communicates with the scan tool via the keyword 2000 serial data circuit. The keyword 2000 system is for diagnostics of the telematic vehicle localization and immobilization control module only. There is no communication between any other control modules on the keyword 2000 serial data system.

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