I have a 94 cadillac seville STS and recently the ABS and brake light have come on. The digital display states "brake fluid switch problem 37" then the message "Traction disabled 88" comes on. I repaced the fuild level sensor but still get the same thing. Where and how do I find the brake fluid switch? I have the cadillac service manual and can't find that code or type of part. Any help would be great.