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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, Rear parking sensors not working in Cadillac Escalade Forums; hey guys, check out the end of the this thread http://www.cadillacforums.com/forums...ml#post1908057...
  1. #31
    zerocarpileup is offline Cadillac Owners Fanatic
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    Re: Rear parking sensors not working

    hey guys, check out the end of the this thread


    http://www.cadillacforums.com/forums...ml#post1908057

  2. #32
    COWTOWN SURVEYOR's Avatar
    COWTOWN SURVEYOR is offline Cadillac Owners Member
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    Re: Rear parking sensors not working

    My parking assist worked great for years with my reciever hitch attached. One day it stopped working . After a trip to the dealer and some embarrassment I discovered that the little black
    plastic /rubber trailer ball cover that I bought this weekend to cover up my rusty ball was just enough to set it into non working mode. Trailer hitch is still attached minus the cover and everything
    is back to normal.

  3. #33
    ddbrand is offline Cadillac Owners Member
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    Re: Rear parking sensors not working

    I know this is an old post, but if by any chance you still have those sensors, I'll take 'um!

    ----------

    Quote Originally Posted by whosurpopi View Post
    Congratulations, That is exactly what was wrong with mine. I used tape to create the good connection, but the zip tie seems like a great Idea. By the way, I have four sensors that are new if anybody wants them. I purchased them before I found my bad connection. $200 for the set shipped.
    I know this is an old post, but if you by any chance should still have these, I'll be happy to buy them from you.

  4. #34
    bigirb2002 is offline Cadillac Owners Fanatic
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    Re: Rear parking sensors not working

    mine started working AGAIN AFTER i changed my oil lmao

  5. #35
    squiroz000 is offline Cadillac Owners Member
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    Re: Rear parking sensors not working

    Thank you so much. I did exactly as you said and I fixed it, the wires were loose. Again I appreciate the information.

  6. #36
    pro_usa1776 is offline Cadillac Owners Member
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    Re: Rear parking sensors not working

    Mine quit working too. Ill check the connections out tonight. I get a 4 beep alarm, and flashing red LED, when I put the car into reverse. I also have my rear brake lights that stay on when the headlight switch is on. If the switch is in the off position the brake lights work correctly.

  7. #37
    the cadillac man's Avatar
    the cadillac man is offline Cadillac Owners 10000+ Posts
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    Quote Originally Posted by pro_usa1776
    Mine quit working too. Ill check the connections out tonight. I get a 4 beep alarm, and flashing red LED, when I put the car into reverse. I also have my rear brake lights that stay on when the headlight switch is on. If the switch is in the off position the brake lights work correctly.

    I would bet you have a bad ground as that will cause the issue your having with the lights

    The flashing red light means the park sensors have a trouble code in the system I can help with that

  8. #38
    John P is offline Cadillac Owners Fanatic
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    How do you find trouble codes CM?

  9. #39
    the cadillac man's Avatar
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    Quote Originally Posted by John P
    How do you find trouble codes CM?
    The module is under the second row passenger seat(short wheelbase Escalade only) the test mode harness is next to it

    Jumper that and then put the truck in reverse(engine NOT running) and watch the display
    It will flash like this
    Outside red and outside amber
    Codes
    Outside red and outside amber

    The test mode loops so it will give you more then one chance to get the codes
    To clear the codes afterwards just remove the jumper and drive the truck up to at least 25mph

    Get the codes and I will help out

  10. #40
    CaddyEscalade is offline Cadillac Owners Fanatic
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    Re: Rear parking sensors not working

    I am also trying to diagnose this on a 2003 Escalade, there are 2 things under the rear passenger seat. One has a black bosch module with a blue plug and the other is just a multi-wire plug connector. I'm not sure what I am to jumper? And where am in reading the codes from once jumped? Thanks

  11. #41
    the cadillac man's Avatar
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    Quote Originally Posted by CaddyEscalade
    I am also trying to diagnose this on a 2003 Escalade, there are 2 things under the rear passenger seat. One has a black bosch module with a blue plug and the other is just a multi-wire plug connector. I'm not sure what I am to jumper? And where am in reading the codes from once jumped? Thanks
    The Bosch module should have a small two pin harness likely taped to the larger harness

    Jumper it and shift the truck in reverse with the engine not running(just key in run position) it will display the codes then

  12. #42
    John P is offline Cadillac Owners Fanatic
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    There is nothing under my second row? I've got quad captains if that makes a difference?

    Thanks for your reply.

  13. #43
    the cadillac man's Avatar
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    Do you have a Escalade esv?(or a ext?)

    If so then it's in a different spot(same module just different location)

    Standard Escalade has the module under the second row passenger seat(the test harness is very close to it)

  14. #44
    CaddyEscalade is offline Cadillac Owners Fanatic
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    Re: Rear parking sensors not working

    Ok I found it finally, it was under the carpet. Her is what the code I got. First both outside lights amber and red light up then the middle amber light flashes 4 times and then the a single red light on the right. Does that mean anything to you?

  15. #45
    the cadillac man's Avatar
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    You will need to check the reverse input wiring(likely on the harness panel under the right rear quarter panel) and the driver's side outboard sensor(swap the sensors around and see if the code fallows the sensor if so then it's a bad sensor)

    Also make sure the harness is snug and tight at the module as sometimes a loose connection there can throw the reverse code

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