You can fix the brake booster switch in your 1991 Jaguar by replacing the brake booster switch. In most cases when the brake booster switch does not function properly the only way to fix it is to replace it.
In theory, you can fix your own brake switch. But since you have (obviously) never done this before, I suggest you leave it for someone with more experience.
If you are wondering whether or not brake booster repair is something easily done by an amateur because you want to fix it yourself, then the answer would be no. Take it in to get it fixed.
brake light switch at the top off your brake pedal the little rubber bumber is worn out or the switch is out.... very easy fix
Probably the switch on the brake pedal,
Check the fuse, the bulbs, and the brake light switch.
about a $1000, but look for a better deal
You will need to change the brake light switch. The brake light switch can be found below the dashboard on the drivers side.
The brake light switch must be broken or out of adjustment.
check your fuses and the brake light switch above the pedal
under ure brake pedal u have a brake switch simple fix.
This grossly unsafe. If you have just the booster fail the brakes will still work but not well. If the brakes fail completely you could crash and die.
Adjust or replace the brake light switch.