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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 345 (Power Door Lock System - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC B16C5 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On/Vehicle - In Service Mode
  2. Operate the component: S13D Door Lock Switch - Driver - Unlock Switch
  3. Operate the component: S58A Rear Compartment Lid Unlatch Switch - Exterior @ E7AC Rear License Plate Lamp Module - Pressed

    Verify the component produces a clicking sound: M40 Rear Compartment Lid Latch

    • If the component does not produce a sound 

      Refer to: Circuit/System Testing

    • Go to next step: If the component produces a sound 
  4. A fault is not currently present and may be an intermittent condition
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