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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 323 (Data Communication System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Scan Tool Does Not Communicate with Gateway Isolated High Speed GMLAN Device >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 GMC Acadia. 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
Gateway Isolated High Speed GMLAN Serial Data (+)
or High Speed GMLAN Serial Data (+) (9)		 U007C U007C U007C -
Gateway Isolated High Speed GMLAN Serial Data (-)
or High Speed GMLAN Serial Data (-) (9)		 U007C U007C U007C -
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