brake sensors

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Cadillac Seville / Cadillac Eldorado Forum Discussion, brake sensors in Past Cadillac Vehicle Discussion; Hi everyone , I have a 2001 caddy Seville SLS , VIN-Y 4.6 , anyway , I have intermittent "change ...
  1. #1
    timman is offline Cadillac Owners Fanatic
    Automobile(s): 1996 cadillac deville
    Join Date
    Jun 2010

    brake sensors

    Hi everyone , I have a 2001 caddy Seville SLS , VIN-Y 4.6 , anyway , I have intermittent "change brake pads" come up on the dash. They are very low (front and back) , but I just cant remember if the sensors need to be changed every time the pads are changed. Any help ????? Thanks , Tim

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  3. #2
    kingjay's Avatar
    kingjay is offline Cadillac Owners Member
    Automobile(s): 1999 Seville SLS, 2007 STS-4 V.6
    Join Date
    Nov 2012
    Bonita Springs, FL
    I believe that they do.

  4. #3
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
    Join Date
    Sep 2010
    East Boston MA.
    The sensors are sacrificial, so whichever one/s worn through will have to be replaced. You could also just take the two sensor wires and splice them together if you don't need the warning function.

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  6. #4
    blancaclaudia is offline Cadillac Owners Member
    Automobile(s): 2002 STS w/ F55
    Join Date
    Feb 2013
    Tucson, Arizona

    Re: brake sensors

    As stated previously, the sensors are sacrificial. Very likely that they'll need to be replaced if you are getting the message. Recently I replaced the bearing/hub assembly on the front of my 2002 STS. No messages on the dash, and no other indications that the pads needed replacement. The sensors were just being "touched". Obviously, I replaced the pads. Personally, I would always rather replace the pads than the rotor. Ceramic pads were $50 for the fronts.

    If your car is approaching 100K, replace the wheel bearing/hub assembly at the same time as these will soon need to be replaced (100K is about the max life). $150 parts for the pair. Otherwise, you'll be duplicating the cost for labor.

  7. #5
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 67,500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: brake sensors

    Brake pad wear circuit - it's a series circuit, so one sensor wears (you don't know which one) and the message shows.

    They are sacrificial - simply a piece of wire embedded in a phenolic puck - when the wire wears through, the circuit opens. If you're a conscientious owner and do regular maintenance checks you don't need the crutch - check pad wear when you rotate your tires. My EBC Redstuff rear pads did not have the sensor cutout so I bundled the (good) sensor wiring and wire-tied it to the suspension arm.

    Different types for different years. Call Chris in parts at Rippy Cadillac over there >>>>>>>>>>

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