Page 2 of 4 FirstFirst 1234 LastLast
Results 11 to 20 of 31

Thread: memory seat module

  1. #11
    Join Date
    Oct 2004
    Location
    Southern Maryland
    Posts
    2,550
    Feedback Score
    0

    Default

    Man, you have that thing down to parade rest.
    Self test disabled? I guess you can forget that test.

  2. #12
    Join Date
    Oct 2004
    Location
    Southern Maryland
    Posts
    2,550
    Feedback Score
    0

    Default

    Pics
    The second pic looks like a factory delete of the memory neutral module.
    Can you back-probe the R/LB wire for 12v while cranking?
    Attached Images Attached Images

  3. #13
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,103
    Feedback Score
    15 (100%)

    Default

    i wanted to but the sky looked mean and ready to dump on me.

    buttoned up everything on the car including the omitting of the memory seat module.

    your pointing to an "output wire i think..
    shouldnt i back probe an input red/lb wire for 12v in "start"?


    what you are seeing is a group of 5 wires that was a part of a six pin connector that failed.
    not sure what your shrink tube comment in the pic was?

  4. #14
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,103
    Feedback Score
    15 (100%)

    Default

    sorry softtouch,, im gonna get that red/blue question answered tomorrow.

    i have to understand more about "WHICH" red blue wire that i know you want me to check.

  5. #15
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,103
    Feedback Score
    15 (100%)

    Default

    for the heck of it,, i decided to pull codes since having taken out my memory seat module i get a check engine light.

    this is an 87 5.0L

    currently and over the past two years i have had two oxegen sensors simply plugged in and hanging in the engine bay.
    i have gotten 25mpg easy and no check engine light till this memory seat module thing came up ,, which came up only after my son hit a deer.




    Active codes are:
    82 2.3L TC - Fan Control wire shorted to ground - A/C and Fan Circuits
    AIRB solenoid - Solenoids and Air Injection

    memory codes are:
    29 Vehicle Speed Sensor problem - VSS

    34 EVP - (R) EGR did not respond properly during test - EVP
    EVR - (O, R, M) EVP sensor is/was high - EVR
    PFE - (O, R, M) PFE sensor is/was out of range - PFE

    41 (R) System lean - Fuel control
    (M) System was lean for 15 seconds or more (no HO2S switching) - Fuel control

    91 (R, M) System running lean - Fuel control
    Transmission SS 1 circuit/solenoid problem - Transmissions

  6. #16
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,103
    Feedback Score
    15 (100%)

    Default

    update

    there is a single wire jumper brown connector shown in earlier pics which represent a memory neutral module.
    i just looked close and that jumper is really specific. so specific that ford actually put "FORD" on the wire and an E7 part number ,, all this info directly on the wire itself.

    to the red light blue question............
    when in start, battery voltage is present on the Red light blue wire coming into the connector.
    the shown jumper is a special named ford red light blue as well.

    the the ford red blue jumper connects to a red / white.
    the red / white wire travels under the carpet up to a gray 12 pin connector.
    this red/white wire changes back to red light blue which then terminates on the PCB of the memory module.

    with the key in the cranking or start position, i have battery voltage present all the way up to the PCB of the memory seat module.


    oddly,, i have a VSS code mentioned in the previous post!! yet no speedo malfunction is noticed. maybe ill pull the codes on my speedo.
    Last edited by jcassity; 10-20-2017 at 10:13 AM.

  7. #17
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,103
    Feedback Score
    15 (100%)

    Default

    does anyone know of a good forum to bring this issue to that might have more insight?

    i have questions like "if the door switch push botton system is not in the game", will the console functions still operate etc.
    i think the answer is yes to my question.

    so a bench test can be done if i am able to use the basics,, power input, provide an input and output ground, then apply 12vdc to the respective motor inputs and expect a relay to ciick then expect 12dc output to the coordinated expected wire color.

    maybe this is uncharted territory,, nothing on the web is found yet using my various searches.

  8. #18
    Join Date
    Oct 2004
    Location
    Southern Maryland
    Posts
    2,550
    Feedback Score
    0

    Default

    There must be sensor inputs for the memory module to know where the seat is located.
    The main seat motor assembly has three motors. It should also have three sensors as a part of this assembly.
    You should have two cables coming from this motor assembly to the memory module.
    One of the cables is for the motors. Get the color codes from your EVTM.
    The other cable is for the sensors. It should have five wires. A voltage reference and signal return to the three sensors and three sense wires.

    If the memory module doesn't see the sensors, nothing works.
    These sensors don't require any mechanical motion to have an output. They can be used as a "proximity" sensor to detect a nearby magnetic field and to measure how far away it is. ( This is what I have concluded on how it must work after reading a bunch of stuff.)
    Diagram for 97 Explorer:
    Attached Images Attached Images
    Last edited by softtouch; 10-26-2017 at 04:27 PM.

  9. #19
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,103
    Feedback Score
    15 (100%)

  10. #20
    Join Date
    Oct 2004
    Location
    Gap Mills WV 24941
    Posts
    14,103
    Feedback Score
    15 (100%)

    Default

    I am looking more closely now.. the memory seat setup has been that one mystery that i didnt care about till now.

    I see that for memory seat ford made the motors separate from thier respective gear box.

    the motor has a cable that drive its very own gear box.

    there are three wires on each gear box which i expect would be the hall effect sensors.

    so......... it appears the seats position is infact like what you said,,,, seat track sensors are actually there just not on the track but on the gear box cable plug in connector.

    see attached.

    all these hall effect wires go to one connector. there are three wires on each of the three gear boxes.

    inside the wire loom as the hall effect sensors travel as input signals to the memory seat, some of the wires are spliced together as "common".

    they all arrive on a gray 8 pin connector.

    "Yes" to your edited photo asking me if the sensors are in the heat shrink tubing.

    now to figure out which of these three are getting zero signal.

    since the EVTM does not show these three conductors job, i will find out on a single gear box which one represents the windings and which one represents the wiper.

    at that point i should be able to maniuplate the signal on the defective one to allow manual seat controls to work.

    next i will have to figure out how that connector comes off in order to attempt a repair if needed.

    IN one group of 3 yellows which splice to one yellow ,, the single splice end fell of so i cant be sure this was me who broke it or the connection was on the outs.

    all the splces are cad welds.

    Actually the first thing i will do is reterminate all the wiring and jumper around the splices,, then wiggle test the hall effect connetors while i manually make/break seat controls.

    im thinking that when i find the issues be it intermittant or what have you ,, i will get a red LED light to atleast come on showing a fault.
    Attached Images Attached Images

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •