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Home >> Pontiac >> 2009 >> G8 GXP, Standard >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Interlock System >> Diagnostic Information and Procedures >> Transmission Control Lever Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Verify there are no brake pedal position sensor and/or transmission internal mode switch (IMS) DTCs set that could cause the BCM not to provide battery voltage to the A/T shift lock solenoid.
  2. Ignition ON, while pressing the brake pedal, observe the scan tool Brake Applied Output Signal parameter. The reading should be ON with the brake pedal pressed.
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