seat sensor
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, seat sensor in Past Cadillac Vehicle Discussion; Is it difficult to replace the seat sensor(s) drivers side front seat. keep getting the MSM B2115 code..(I think thats ...
  1. #1
    The Donald is offline Cadillac Owners Fanatic
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    seat sensor

    Is it difficult to replace the seat sensor(s) drivers side front seat. keep getting the MSM B2115 code..(I think thats right)

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    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
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    Re: seat sensor

    Quote Originally Posted by The Donald View Post
    Is it difficult to replace the seat sensor(s) drivers side front seat. keep getting the MSM B2115 code..(I think thats right)
    --------------------
    help US help you -

    codes are meaningless without DEFINITIONS -
    and no one has them all memorized -

  4. #3
    rodnok01's Avatar
    rodnok01 is online now Cadillac Owners Connoisseur
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    Re: seat sensor

    I'm not finding that code in my manual... I see B2100 series codes for seats.

  5. #4
    Ranger's Avatar
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    rodnok01's Avatar
    rodnok01 is online now Cadillac Owners Connoisseur
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    Re: seat sensor

    It's the sensor for recline. Shouldn't be too difficult to change with the seat out. Here's the FSM description of code:

    The potentiometer in the position sensor varies in resistance as the motor moves the seat back. The MSM receives a variable voltage input depending on the resistance of the potentiometer.

    During memory set, the MSM records the voltage across the recline potentiometer.

    During memory recall, the MSM moves the recline motor until the voltage across the potentiometer matches the voltages stored in memory.

    For the easy exit function, the MSM moves the recline motor until the voltage matches the information that the MSM has recorded in memory for the easy exit.

    During normal operation, the recline position sensor is checked against out-of-range voltage limits.



    The MSM will set the DTC B2115 any time the MSM detects that the recline sensor input voltage is out of range.


    When DTC B2115 sets as current, the memory seat module (MSM) disables the recline motor during memory recall or easy exit operations. The recline motor remains enabled for manual positioning.

  7. #6
    The Donald is offline Cadillac Owners Fanatic
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    Re: seat sensor

    Thanks rodnok, exactly the info I needed but Im probably going to pass on the repair because I'll bet the seat is a real bitch to get out..And not worth the effort I'll just go manual

  8. #7
    rodnok01's Avatar
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    Seat not bad to get out at all. You will need a helper to keep it from dragging around. I put blanket on back seat to keep damage away. 2 torx bolts, 2 or 3 connector and out it comes. Move seat all way forward and up to remove bolts. Then I layed seat back so I could tilt it up to get to the elec connectors and then It comes out a little easier. take it out through the rear drivers door. Have a spot ready to lay it upside down and protect the leather.

  9. #8
    The Donald is offline Cadillac Owners Fanatic
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    Re: seat sensor

    Quote Originally Posted by rodnok01 View Post
    Seat not bad to get out at all. You will need a helper to keep it from dragging around. I put blanket on back seat to keep damage away. 2 torx bolts, 2 or 3 connector and out it comes. Move seat all way forward and up to remove bolts. Then I layed seat back so I could tilt it up to get to the elec connectors and then It comes out a little easier. take it out through the rear drivers door. Have a spot ready to lay it upside down and protect the leather.
    OK I'll give it a try
    Thanks

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