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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 107 (Power Seats) >> Diagnostic Information and Procedures >> Lumbar/Bolster/Massage Malfunction (Lumbar/Bolster/Massage Malfunction (2-Way)) >> 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.
  1. Ignition/Vehicle in Service Mode.
  2. Verify that all lumbar seat functions operate when being controlled by the S65 Front Seat Lumbar Switch.
    • If any lumbar function does not operate 

      Refer to Circuit/System Testing.

    • Go to next step: If all lumbar functions operate 
  3. A fault is currently not present and may be an intermittent condition.
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