2003 Escalade service air ride warning
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, 2003 Escalade service air ride warning in Cadillac Escalade Forums; Just replaced the rear air shocks and compressor for a customer of mine with arnott units b/c the old parts ...
  1. #1
    02luxodeville is offline Cadillac Owners Member
    Automobile(s): 2002 Deville DHS
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    2003 Escalade service air ride warning

    Just replaced the rear air shocks and compressor for a customer of mine with arnott units b/c the old parts were blown. Now the service air ride warning on the dash keeps coming up and I can't figure out why. It isnt sending a DTC to the OBD II and I checked the new parts I installed, they're all working properly. No loose connections w/ hoses or wires from what i can tell. I'm all out of ideas, any help? Thanks!

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    mikedyk43's Avatar
    mikedyk43 is offline Cadillac Owners Fanatic
    Automobile(s): 2006 Escalade
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    Quote Originally Posted by 02luxodeville View Post
    Just replaced the rear air shocks and compressor for a customer of mine with arnott units b/c the old parts were blown. Now the service air ride warning on the dash keeps coming up and I can't figure out why. It isnt sending a DTC to the OBD II and I checked the new parts I installed, they're all working properly. No loose connections w/ hoses or wires from what i can tell. I'm all out of ideas, any help? Thanks!
    I don't know their proper name, but there are potentiometers mounted in between the frame and the rear suspension. Sometimes when the vehicle has the rear suspension fully extended (jacked up until tires are off the ground), one or both of these can rotate to the opposite direction. You can check these out by jacking up the rear by the suspension and removing the rear tires. They are very noticeable once the tires are removed. The wife blew a rear tire once and dislodged one side, took me a while to figure it out, but constant "service air ride message" as well.

  4. #3
    the cadillac man's Avatar
    the cadillac man is online now Cadillac Owners Master
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    Re: 2003 Escalade service air ride warning

    just a fyi the rear air module can only be probed by a tech-2 device not a code reader like at auto zone.

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