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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Data Communication System - Diagnostic Information And Procedures (B1000 To U1833) >> Diagnostic Information And Procedures >> DTC U0073 Or U2100: Control Module Communication Bus A Off/CAN Bus Communication >> Circuit/System Verification
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Circuit/System Verification

  1. Refer to Data Link References to determine which serial data communication system is used for a specific device.
  2. This DTC may not be retrieved with a current status. Diagnosis is accomplished using the symptom. Refer to Symptoms - Data Communications .
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