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Home >> Cadillac >> 2019 >> CTS Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Shift Lock Control System) >> Diagnostic Information and Procedures >> DTC B270A >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2018 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 parameter: Brake Pedal Applied = Inactive
    • Go to next step: If the specified state 
  3. Operate the component: Brake Pedal - Pressed

    Operate the component: S3 Transmission Shift Lever - Park & Drive

    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  4. All OK.