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2004 Volvo S80 seat memory problems no longer working just stopped buttons do nothing

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tesla6379

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Oct 9, 2010, 8:57:44 PM10/9/10
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Hi,

This is my 1st time posting - almost guaranteed not to be my last. I
just bought my Volvo and love it so far...it's developed its first
quirk. The seat memory buttons just stopped working. They've been
working fine since I bought the car 1 month ago. Now, pressing memory
button 1, 2 or 3 does not change the seat position.

I can adjust the seat position using the forward/back buttons and the
tilt buttons - it's just the memory buttons that stopped working. If
I press the MEM 1 button, the driver side mirror twitches back and
forth for a couple seconds then...nothing. Pressing MEM 2 or 3
buttons does absoutely nothing.

I've been Googling for a solution - nothing
I checked Brickboard.com (cool website) - nothing

Hoping to find some help out here in cyberspace.

Thanks,
Jon

Roger Mills

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Oct 10, 2010, 5:28:02 AM10/10/10
to

I've never owned a car that that was designed to remember seat
positions, so I can only guess, and not speak from experience.

It sounds as if the 'memory' has forgotten your settings. I don't know
whether or not it uses volatile memory. Has the battery ever been
disconnected?

The motors which move the seat still seem to be working, but may not be
powered from the same place as the memory. Have you checked the handbook
to see whether there is a fuse *just* for the memory and - if so - have
you checked that fuse?

If it *has* lost it's memory for whatever reason, you may be able simply
to re-program it. Have you tried to *store* your chosen positions again
in the memory?
--
Cheers,
Roger
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tesla6379

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Oct 10, 2010, 11:45:51 PM10/10/10
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> checked.- Hide quoted text -
>
> - Show quoted text -

Hi Roger,

Thanks for the reply! I have tried to store the seat locations
again...but no luck. When I go through the process of storing the
seat location (the same as me and my wife went through 1 month ago)
the buttons still have the same failure mode:

Press MEM 1 button - driver side mirror twitches for a couple seconds,
no seat movement, then nothing. No error reports, nothing
Press MEM 2 or 3 button - Absolutely nothing happens.

The only thing that I did between these things working and not working
is remove the center console to clean the plastic parts etc. then
reassemble. I don't think anything got tweaked...but I did remove the
gear shift which does have electronic components. Could this have
fried something?

Jon

Roger Mills

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Oct 11, 2010, 6:47:41 AM10/11/10
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Don't know - but it sounds like you may have accidentally disconnected
something when you removed the console and gear shift. It might be an
idea to remove it again, to check that there are no unattached wires,
and that all connectors are fully seated. Where are the memory buttons -
are *they* on the console? If so, the wiring to them has to be a prime
suspect.

edas...@sonic.net

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Oct 11, 2010, 6:05:51 PM10/11/10
to
for some reason i think that seat memory runs through the ecu, which
doesn't just control the engine. like any other 'puter when you tickle
it over here it hiccups over there. use the OBDII port to run a
diagnostic, but let me tell you running this type of error down is
famously annoying. oh, doing a cold boot & re- entering your
perferences seems like a good idea.


On Mon, 11 Oct 2010 11:47:41 +0100, Roger Mills <watt....@gmail.com>
wrote:

tesla6379

unread,
Oct 13, 2010, 9:43:09 AM10/13/10
to
On Oct 11, 3:05 pm, edasd...@sonic.net wrote:
> for some reason i think that seat memory runs through the ecu, which
> doesn't just control the engine. like any other 'puter when you tickle
> it over here it hiccups over there. use the OBDII port to run a
> diagnostic, but let me tell you running this type of error down is
> famously annoying. oh, doing a cold boot & re- entering your
> perferences seems like a good idea.
>
> On Mon, 11 Oct 2010 11:47:41 +0100, Roger Mills <watt.ty...@gmail.com>
> >suspect.- Hide quoted text -

>
> - Show quoted text -

The problem is resolved. Looks like user error. I thought I had
entered the memory location properly but, I went back and tried again
- now I can store locations and recall the seat position fine, the
only thing not setting is the driver side mirror. Sorry for the
boondoggle guys - but thanks for the help!

Jon

John Robertson

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Nov 7, 2010, 1:50:20 AM11/7/10
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TRY CLEANING TERMINALS EVERY THING YOU CAN SEE INCLUDING FUSES


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