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Home >> Chevrolet >> 2019 >> Spark LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 50 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U3000: Control Module >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify DTC U3000 is not set.
    • If DTC U3000 is set with symptom byte 43, 47, or 4B 
    1. Program the device that set the DTC.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the device that set the DTC.
      • If the DTC does not set
    3. All OK.
    • If DTC U3000 is set with any symptom byte, except 43, 47, or 4B 

      Replace the device that set the DTC.

    • If DTC U3000 is not set 
  3. All OK
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