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Home >> GMC >> 2019 >> Sierra 2500 HD Base, 2D Pickup, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 2532 (Data Communication System) >> Diagnostic Information and Procedures >> DTC B1000: Electronic Control Unit >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON.
  2. Verify DTC B1000 is not set.
    • If DTC B1000 is set 

      Replace the device that set the DTC.

    • If DTC B1000 is not set 
  3. All OK
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