Here's what I have for checking the pots...
Memory Seat checking for bad
potentiometers
"You may have a faulty potentiometer for one of the seat
movements. The way to check them is to first set all movements to the
mid-way position. Then run each one to it's full position and
press the memory button. If the led
lights up run it fully the other way and press the button. Return it to
the mid position and go to the next movement. Check all ranges, front
cushion up/down, rear cushion up/down, cushion forward/backward, seat
back raise/recline and headrest up/down. Remember to return each one to
the mid position before trying the next one. If one fails to light the
led you have a bad or out of adjustment potentiometer for that movement
function."
I did this and found only the one pot to be off (the one that moves the
seat back forward/rear). When I attempt to use my memory seat function
the seat back just goes back and back... obviously doesn't 'know' where
it is.
Here's what I found on adjusting the pots (contains some testing
instructions too)...
Adjusting Potentiometers:
"Remove the seat, tear it apart for access, reinstall it loosely, get
out your digital volt meter and get ready.
You have to set each range of motion to the middle position, run it
fully one way, press the memory button and hope the LED lights up, run
it fully the other way, press the button and hope again and repeat for
each of the 8 ways the seat moves. If the LED doesn't light up you have
to adjust the potentiometer for that motor. Even the headrest has to be
tested. If that one has to be adjusted the rear of the seat has to come
apart.
You use a small screwdriver to turn the adjuster screw on each
potentiometer while watching the volt meter. Each range of motion should
produce a feedback voltage at the limit of its travel. For instance,
headrest fully raised--4.36 volts. Fully retracted--0.14 volts. Same for
each other range (forward/rearward, seat back recline, etc.)
This is really not something you'd want to get into on your own and I
would strongly suggest having a qualified technician do it for you."
Can anyone tell me where the pot is that adjusts the seat back? Seems
if I can get access to that pot that I can attempt to adjust it so that
the voltages peak as described above... or atleast play with it until I
can dial it in.
I apologize for not giving credit where credit is due on these
posts... I did not capture the original poster's name. Good luck.
Thank you for your response..but I was told that there is a button battery in the circuit that may need replacing, is there a battery in the circuit...yes or no....thank you.
That may
well be correct. Remember that the information settigns is (and keep) stored by a small battery even when the
computer is off. This systems works same way in your phone even if is turn off or when the computer has been turned off; the dates remain
intact even with the computer off and unplug from electrical alimentation (or if the battery has been withdrawn,
in the case of mobile).
Test it.
I'm sure that the dealer is obvious, but you can also check with bentley
publishers. TY for using Fixya.
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THANK you, but if you had the circuit plan you could tell if it had a battery...I will have to search for the battery not knowing if there is one.
But thanks anyway.
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