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Home >> Chevrolet >> 2018 >> Volt Premier >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Lock Control System >> Diagnostic Information and Procedures >> Transmission Control Lever Malfunction >> Circuit/System Verification
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Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify the scan tool Brake Transmission Shift Interlock Solenoid Actuator Command parameter changes from Inactive to Active when the brake pedal is applied.
    • If the Brake Transmission Shift Interlock Solenoid Actuator Command does not change 

      Refer to Stop Lamps Malfunction

    • Go to next step: If the Brake Transmission Shift Interlock Solenoid Actuator Command 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.

    • Go to next step: If the S3 Transmission Shift Lever does move out of the PARK position 

      Go to next step: All OK.