I recently found that the brake sensor in my brake pedal isn't working. This is the sensor that both allows cruise control to engage/automatically disengage when you hit the brake, and the same sensor that prevents you from moving the gear selector out of park without having your foot on the brake. The car has the automatic "Tip-tronic" transmission.
The sensor is currently stuck in the "tripped" position, meaning that the cruise control won't engage, and the red light by the gear selector is off, meaning I can move out of park without my foot on the brake - however, the brake lights continue to function properly.
If I lift up gently on the brake pedal by putting my toe underneath it, the sensor will recognize the brake pedal as not being depressed, and I can engage cruise control (as soon as I stop lifting up on the pedal it will disengage), and when I'm stopped, the car will correctly lock the gear selector from moving out of park - you can actually hear a solenoid actuate locking the gear selector, and a red light comes on showing that the brake needs to be depressed.
I need help identifying which sensor is malfunctioning, and where it is. From there, I'm reasonably confident someone has already made a guide on how to fix it, but I want to make sure I'm replacing the correct part.
Thanks for the help!