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Home >> Chevrolet >> 2016 >> Malibu LS >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - DTC B1000 To DTC U1500 >> Diagnostic Information and Procedures >> DTC U0100 - U02FF (with HP4): Control Module >> Circuit/System Verification

Circuit/System Verification

  1. Determine the device that is not communicating. Refer to Control Module U Code List .
  2. Ignition ON/Vehicle In Service Mode.
  3. Verify that DTC U0073, U2100, U0074, U0075, U0077, U0078, U007A, U1814, U2099, B1325, B1330, B1370, B1380, B1424, B1440, B1441, B1517, C0800, C0899, C12E1, P0560, P0562, P24EF, P24F0, or P24F1 is not set.
    • If none of the DTCs are set 
  4. Refer to Circuit/System Testing.