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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communications - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC U18A6 >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U18A6 U18A6 - -
Communication Enable U18A6 U18A6 - -
Serial Data (+) U18A6 U18A6 U18A6 -
Serial Data (-) U18A6 U18A6 U18A6 -
Ground - U18A6 - -
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