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Home >> GMC >> 2018 >> Acadia SL >> Repair and Diagnosis >> Engine Performance >> System >> Data Communications - Diagnostic Information And Procedures >> Diagnostic Information And Procedures >> DTC U184A: Lost Communication With Body Control Module On Low Speed CAN Bus >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON.
  2. Verify that DTC U0073, U0078, B1325, B1330, B1370, B1380, B1424, B1428, B1440, B1441, B1517, C0800, C0899, C12E1, P0560, or P0562 is not set.
    • Go to next step: If none of the DTCs are set 
  3. Refer to Circuit/System Testing.
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