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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Engine Controls And Fuel - 3.6L (LF4) - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> Fuel Injector Diagnosis >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    Do NOT perform this procedure unless directed here from the following diagnostic/test:

  1. Ignition - On / Vehicle - In Service Mode
  2. Verify there are no DTCs set related to the following component/system:
    • Q17 Fuel Injector
    • Fuel System
    • Go to next step: If a related DTC is not set 
  3. Perform the following procedure/test: Fuel Injector Balance Test - Scan Tool
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