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Home >> Pontiac >> 2009 >> Solstice Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 49 (Data Communication System) >> Diagnostic Information and Procedures >> Scan Tool Does Not Communicate with Class 2 Device >> Diagnostic Fault Information
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Diagnostic Fault Information

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Class 2 Serial Data 1 1 1 -
Ground (DLC, terminal 5) - 1 - -
1. A short voltage, short to ground, or an open between the data link connector (DLC) and the PCM, or an open between the DLC terminal 5 and ground will only effect the communication with the scan tool. The PCM will still communicate on HS GMLAN.
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