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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 162 (Data Communications - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC U101A >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON/Vehicle In Service Mode.
  2. Verify DTC U101A is not set.
    • If the DTC is set 
    1. Perform all necessary programming, setup, and configure procedures for the K111 Fuel Pump Power Control Module.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the K111 Fuel Pump Power Control Module.
      • Go to next step: If the DTC does not set
    3. All OK.
    • Go to next step: If the DTC is not set 
  3. All OK