[DeTomaso] Driver's side window motor
Mike Drew
MikeLDrew at aol.com
Wed Oct 12 16:46:08 EDT 2016
Garth,
It's much simpler than that. If you move the switch and there is no corresponding displacement of the ammeter needle, then it's the switch. Whether the motor is fried of the gear is jammed, if the switch worked there would be ammeter movement. So that's the first test.
Well, you should also check the fuse. Remember the windows have their own tiny fusebox....
Mike
Sent from my iPhone
On Oct 12, 2016, at 12:29, Garth Rodericks <garth_rodericks at yahoo.com> wrote:
> Well, I suppose if the gear was jammed it would prevent the motor from moving, but no movement or sound detected from the motor. Usually when the gear fails, as I understand it, the motor can still be heard, but there's no window movement.
>
> I'll check for resistance first, then jumper the motor from the battery to verify if it's the motor. Then, I'll remove the motor assembly (window transmission) to inspect those components and check the motor independent of the gear assembly if necessary.
>
> Thanks!
>
>
> From: marshall smith <marshallgsmith at sbcglobal.net>
> To: Mike Drew <MikeLDrew at aol.com>; Forest Goodhart <forestg at att.net>; Garth Rodericks <garth_rodericks at yahoo.com>
> Cc: DeTomaso Mail List <detomaso at server.detomasolist.com>; Phone Richard Bosch <theemonkey at yahoo.com>; John Buckman <jb841 at cox.net>
> Sent: Wednesday, October 12, 2016 12:20 PM
> Subject: Re: [DeTomaso] Driver's side window motor
>
> How did you verify it's not the window gear? You would have to open the window transmission to know that.
> --------------------------------------------
> On Wed, 10/12/16, Garth Rodericks via DeTomaso <detomaso at server.detomasolist.com> wrote:
>
> Subject: Re: [DeTomaso] Driver's side window motor
> To: "Mike Drew" <MikeLDrew at aol.com>, "Forest Goodhart" <forestg at att.net>
> Cc: "DeTomaso Mail List" <detomaso at server.detomasolist.com>, "Phone Richard Bosch" <theemonkey at yahoo.com>, "John Buckman" <jb841 at cox.net>
> Date: Wednesday, October 12, 2016, 11:59 AM
>
> I have
> stock window switches, but I installed a new Bosch window
> switch
> with no change -
> driver's window still doesn't work.
>
> __________________________________________________________________
>
> From: Mike Drew
> <MikeLDrew at aol.com>
> To: Forest Goodhart <forestg at att.net>
> Cc: Garth Rodericks <garth_rodericks at yahoo.com>;
> DeTomaso Mail List
> <detomaso at server.detomasolist.com>;
> Phone Richard Bosch
> <theemonkey at yahoo.com>;
> John Buckman <jb841 at cox.net>
> Sent: Wednesday, October 12, 2016
> 11:03 AM
> Subject: Re:
> [DeTomaso] Driver's side window motor
> Garth,
> Do you still have the stock
> switches? Few stock switches are still
> working anymore--they have a
> finite lifespan. The stock replacements
> from Wilkinson are notorious for
> poor quality (I've held one that was
> broken in the package!). For
> years people have used Bosch replacements
> which look almost identical to
> stock. In fact so many cars have them
> that many people don't even
> realize they aren't stock!
> So, what kind do you have?
> Mike
> Sent from my iPhone
> On Oct 12, 2016, at 10:32, Forest
> Goodhart <[1]forestg at att.net>
> wrote:
> > Garth,
> > Do you see any movement of
> the ammeter when you operate the switch?
> > Window motors do not have
> any relays in the circuit but they have a
> > built in circuit breaker
> in the motor.
> > Start
> with a jumper directly from the battery to the motor and
> see
> what
> > happens. Power to one
> lead, ground to the other. Revers for
> operation
> > the other direction.
> > Forest
> >
> __________________________________________________________________
> >
> > From: Garth Rodericks via
> DeTomaso
> <[2]detomaso at server.detomasolist.com>
> > To: DeTomaso Mail List
> <[3]detomaso at server.detomasolist.com>
> > Cc: Phone Richard Bosch
> <[4]theemonkey at yahoo.com>;
> John Buckman
> > <[5]jb841 at cox.net>
> > Sent: Wednesday, October
> 12, 2016 10:01 AM
> >
> Subject: [DeTomaso] Driver's side window motor
> > Another electrical
> issue that developed on the way home from the
> > Niello
> > Concours last
> week...
> > My
> driver's side window motor no longer operates.
> I've never
> before
> > had a problem with the
> window motors. Driving home Sunday evening
> I
> > had
> > the window down a
> couple inches for some airflow in the cabin
> (since
> > the heater/AC blower
> fan was not working). I closed the window
> for a
> > few minutes then when I
> tried to re-open it the motor made a
> > momentary
> > noise like it was
> starting to lower the window, then stopped.
> After
> > that, nothing! No
> noise or movement either up or down.
> > I tried replacing the
> switch with a new Bosche switch, and no
> change.
> > I removed the door
> panel and verified it's not the dreaded window
> > gear
> > issue - the motor is
> not turning at all.
> >
> I've lowered the window manually with the emergency
> crank and
> still
> > no
> > movement, regardless of
> the window's position.
> > I checked voltage on
> the different posts with my multimeter and
> found
> > that one of the
> contacts was only getting about 3-4 volts when the
> > switch was put in the
> down position, and the other contact got
> 11-12
> > volts when the switch
> was put in the up position, but no movement
> in
> > either direction
> regardless.
> > The
> passenger side window works fine and the motor has the
> same
> 11-12
> > volts at either post
> depending on the switch position - up/down.
> > All fuses are good.
> > Any thoughts on where
> to look for the problem? Or suggestions on
> how
> > to further diagnose?
> > I cannot see any break
> in the wiring or a poor connection
> somewhere.
> > Again, could this be a
> relay issue? The stock wiring harness
> appears
> > untouched in this area
> behind the switch console and under the
> dash.
> > I have not yet tried
> running a jumper wire directly to the motor
> from
> > the switch. I suppose
> that should be my next step.
> > Again, open to any
> ideas. Can't really drive the car anywhere if I
> > can't close the
> windows and lock it up.
> >
> Cheers!
> > Garth
> >
> _______________________________________________
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> >
> _______________________________________________
> >
> >
> > Detomaso Email List is not
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> References
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>
> 11. http://server.detomasolist.com/mailman/listinfo/detomaso
>
> -----Inline Attachment Follows-----
>
> _______________________________________________
>
>
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-------------- next part --------------
Garth,
It's much simpler than that. If you move the switch and there is no
corresponding displacement of the ammeter needle, then it's the switch.
Whether the motor is fried of the gear is jammed, if the switch worked
there would be ammeter movement. So that's the first test.
Well, you should also check the fuse. Remember the windows have their
own tiny fusebox....
Mike
Sent from my iPhone
On Oct 12, 2016, at 12:29, Garth Rodericks
<[1]garth_rodericks at yahoo.com> wrote:
Well, I suppose if the gear was jammed it would prevent the motor from
moving, but no movement or sound detected from the motor. Usually when
the gear fails, as I understand it, the motor can still be heard, but
there's no window movement.
I'll check for resistance first, then jumper the motor from the battery
to verify if it's the motor. Then, I'll remove the motor assembly
(window transmission) to inspect those components and check the motor
independent of the gear assembly if necessary.
Thanks!
__________________________________________________________________
From: marshall smith <[2]marshallgsmith at sbcglobal.net>
To: Mike Drew <[3]MikeLDrew at aol.com>; Forest Goodhart
<[4]forestg at att.net>; Garth Rodericks <[5]garth_rodericks at yahoo.com>
Cc: DeTomaso Mail List <[6]detomaso at server.detomasolist.com>; Phone
Richard Bosch <[7]theemonkey at yahoo.com>; John Buckman
<[8]jb841 at cox.net>
Sent: Wednesday, October 12, 2016 12:20 PM
Subject: Re: [DeTomaso] Driver's side window motor
How did you verify it's not the window gear? You would have to open the
window transmission to know that.
--------------------------------------------
On Wed, 10/12/16, Garth Rodericks via DeTomaso
<[9]detomaso at server.detomasolist.com> wrote:
Subject: Re: [DeTomaso] Driver's side window motor
To: "Mike Drew" <[10]MikeLDrew at aol.com>, "Forest Goodhart"
<[11]forestg at att.net>
Cc: "DeTomaso Mail List" <[12]detomaso at server.detomasolist.com>, "Phone
Richard Bosch" <[13]theemonkey at yahoo.com>, "John Buckman"
<[14]jb841 at cox.net>
Date: Wednesday, October 12, 2016, 11:59 AM
I have
stock window switches, but I installed a new Bosch window
switch
with no change -
driver's window still doesn't work.
__________________________________________________________________
From: Mike Drew
<[15]MikeLDrew at aol.com>
To: Forest Goodhart <[16]forestg at att.net>
Cc: Garth Rodericks <[17]garth_rodericks at yahoo.com>;
DeTomaso Mail List
<[18]detomaso at server.detomasolist.com>;
Phone Richard Bosch
<[19]theemonkey at yahoo.com>;
John Buckman <[20]jb841 at cox.net>
Sent: Wednesday, October 12, 2016
11:03 AM
Subject: Re:
[DeTomaso] Driver's side window motor
Garth,
Do you still have the stock
switches? Few stock switches are still
working anymore--they have a
finite lifespan. The stock replacements
from Wilkinson are notorious for
poor quality (I've held one that was
broken in the package!). For
years people have used Bosch replacements
which look almost identical to
stock. In fact so many cars have them
that many people don't even
realize they aren't stock!
So, what kind do you have?
Mike
Sent from my iPhone
On Oct 12, 2016, at 10:32, Forest
Goodhart <[1][21]forestg at att.net>
wrote:
> Garth,
> Do you see any movement of
the ammeter when you operate the switch?
> Window motors do not have
any relays in the circuit but they have a
> built in circuit breaker
in the motor.
> Start
with a jumper directly from the battery to the motor and
see
what
> happens. Power to one
lead, ground to the other. Revers for
operation
> the other direction.
> Forest
>
__________________________________________________________________
>
> From: Garth Rodericks via
DeTomaso
<[2][22]detomaso at server.detomasolist.com>
> To: DeTomaso Mail List
<[3][23]detomaso at server.detomasolist.com>
> Cc: Phone Richard Bosch
<[4][24]theemonkey at yahoo.com>;
John Buckman
> <[5][25]jb841 at cox.net>
> Sent: Wednesday, October
12, 2016 10:01 AM
>
Subject: [DeTomaso] Driver's side window motor
> Another electrical
issue that developed on the way home from the
> Niello
> Concours last
week...
> My
driver's side window motor no longer operates.
I've never
before
> had a problem with the
window motors. Driving home Sunday evening
I
> had
> the window down a
couple inches for some airflow in the cabin
(since
> the heater/AC blower
fan was not working). I closed the window
for a
> few minutes then when I
tried to re-open it the motor made a
> momentary
> noise like it was
starting to lower the window, then stopped.
After
> that, nothing! No
noise or movement either up or down.
> I tried replacing the
switch with a new Bosche switch, and no
change.
> I removed the door
panel and verified it's not the dreaded window
> gear
> issue - the motor is
not turning at all.
>
I've lowered the window manually with the emergency
crank and
still
> no
> movement, regardless of
the window's position.
> I checked voltage on
the different posts with my multimeter and
found
> that one of the
contacts was only getting about 3-4 volts when the
> switch was put in the
down position, and the other contact got
11-12
> volts when the switch
was put in the up position, but no movement
in
> either direction
regardless.
> The
passenger side window works fine and the motor has the
same
11-12
> volts at either post
depending on the switch position - up/down.
> All fuses are good.
> Any thoughts on where
to look for the problem? Or suggestions on
how
> to further diagnose?
> I cannot see any break
in the wiring or a poor connection
somewhere.
> Again, could this be a
relay issue? The stock wiring harness
appears
> untouched in this area
behind the switch console and under the
dash.
> I have not yet tried
running a jumper wire directly to the motor
from
> the switch. I suppose
that should be my next step.
> Again, open to any
ideas. Can't really drive the car anywhere if I
> can't close the
windows and lock it up.
>
Cheers!
> Garth
>
_______________________________________________
> Detomaso Email List is not
managed by POCA
> Posted
emails must not exceed 1.5 Megabytes
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list grant license to the list to forward
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> message posted here to all
past, current, or future members of the
> list. They also grant the
list owner permission to maintain an
archive
> or approve the archiving
of list messages.
>
> References
>
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