Hi Raymond, I am pleased to assist you. This switch generally does not require calibration after installation. This type of switch is designed to be a direct replacement part that typically functions correctly once installed and adjusted to the appropriate position. Minor adjustments may be needed for proper alignment of the brake switch with the pedal in some vehicles, so check vehicle-specific installation instructions. If your vehicle information matches this product, you can use the link below to order while the part is in stock. Your order will come with a 30-day post-purchase price match guarantee. I hope this helps and enjoy shopping! https://www.carparts.com/brake-light-switch/standard/sisls577?can=CPGG4850_CSQA_20241028

Hi Billy, thanks for initiating contact. If your brake lights stay on continuously after installing a new brake light switch, there are a few possible causes like the brake light switch is not properly adjusted, the brake light switch is defective, The brake light switch is not compatible with your vehicle, there is an issue with the wiring or connectors. To resolve the issue, first check that the brake light switch is properly aligned and making good contact with the pedal. If the lights still stay on, test the switch itself with a multimeter to verify it is opening the circuit when released. If the switch is faulty, replace it with the correct part. Finally, inspect the wiring and connectors for any damage or corrosion that could be causing a short. If your vehicle information matches this product, use the link below to order while the part is in stock. Your order will come with a 30-day post-purchase price match guarantee. I hope this helps and enjoy shopping! https://www.carparts.com/brake-light-switch/standard/sisls577?can=CPGG4850_CSQA_20240527

Hi Tom, I'm glad to assist you. No. It is for the brake light only. It does not affect the speed control. Do you need an ABS sensor? Do you have a trouble code from a diagnostic check?