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Home › Buick › 2017 › Envision Base › Repair and Diagnosis › Engine Performance › System › Data Communication System - Diagnostic Information And Procedures › Diagnostic Information and Procedures › DTC U007D: Control Module Communication Low Speed Extension CAN Bus Off › Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Gateway Isolated Low Speed GMLAN Serial Data
or Low Speed GMLAN Serial Data #2 (Circuit #1102)		 U007D U0100-U02FF U007D -
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