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Home >> Cadillac >> 2017 >> CTS Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 240 (Shift Lock Control System) >> Diagnostic Information and Procedures >> Transmission Control Lever Malfunction >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON / Vehicle in Service Mode.
  2. Verify the scan tool Brake Pedal Applied parameter changes from Inactive to Active when the brake pedal is applied.
    • If the parameter changes 
  3. Verify the S3 Transmission Shift Lever moves out of the PARK position when the brake pedal is applied.
    • If the S3 Transmission Shift Lever does not move out of the PARK position 

      Refer to Circuit/System Testing.

    • If the S3 Transmission Shift Lever does move out of the PARK position 

      All OK.