How do you know if your brake light switch is bad?

A well-functioning brake light switch safeguards a vehicle, its driver, and other road users since brake lights help reduce unnecessary accidents. So then how do you know if your brake light switch is bad? Below are ways to tell:

• Brake Lights Stay On: The brake light will remain on even when brakes are not applied this indicates that the brake light switch stopped working in an open position.
• Brake Lights Stay Off: Brake lights will remain off when the driver steps on the brake pedals. When you run an auto electrical diagnostic you will discover the brake switch stopped working in a closed position.
• ABS or Traction Control Warning Lights: If the ABS light is on, this could indicate various issues such as a faulty brake switch or spoilt wheel sensors. Running an auto-electrical diagnosis will help you determine the problem is.
• Inability to Shift Out of Park: The majority of current vehicles encompass a safety mechanism that blocks transmission from "Park" until the driver applies pressure to the brake pedal. The inability to shift into gear happens because the brake light switch fails to transmit the required signal.
• Cruise Control Not Working: The brake light switch controls cruise control disengagement through brake taps so a malfunctioning switch disrupts the proper operation of cruise control.
• Warning Lights on the Dashboard: The brake light switch malfunction may trigger two dashboard warning lights including ABS and traction control. A defective switch can be identified through these warning lights displayed with brake problems.

Common mistakes that occur during an auto-electrical diagnostic

Identifying electrical faults may be challenging and mistakes would result in misdiagnosis or further damage. Below are some fundamental faults to prevent:

• Not Checking the Fundamentals – Failure to check for fuses, connectors, and battery voltage first before progressing up the complexity level is a time waster.
• Omitting Ground Connections – Corroded or dirty ground connections will cause electrical faults that are typically given little or no consideration.
• Using the Wrong Tools – A test light may not be the right tool for all circuits, and the wrong multimeter setting will provide false information.

Have more questions about how do you know if your brake light switch is bad? Contact our ASE Certified technicians at Phil’s Service for more information about auto electrical diagnostics and to schedule an appointment. Our auto shop proudly serves residents in the community of Killeen, TX, and the surrounding area.