are you sure you have speed sensors and they are at all wheels? the front wheels will have a wire going to the caliper that is meant to alert you to worn brake pads. a speed sensor would be on the hub, and a magnetic hookup would read the pulses from it.

if you have abs, your master cylinder lines will connect to a large box with ABS on the box, and several lines will exit the box.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!