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Home >> Buick >> 2016 >> Cascada Base >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC C056D: Electronic Control Unit Software >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON.
  2. Verify DTC C056D is not set.
    • If DTC C056D is set 

      Replace the device that set the DTC.

    • If DTC C056D is not set 
  3. All OK
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