Trouble shooting Window Winder motor

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ric28z

Veteran Member
Feb 12, 2012
100
Newcastle NSW
Just recently, while attempting to replace my right hand outer door handle I had need to remove the window winder motor.
Since the motor had stopped working and the glass was stuck half way, I needed to gain access to the door handle and at the same time replace that pesky non working motor.

After much swearing and skin removal I finally worked out how to remove the said motor, along with the mechanism, I tested the new motor, supplied by Rock auto some years ago and looked to work when plugged into the loom.
However on final test of the new motor it refused to work at all.

I tested it with direct current from my removed battery and still nothing, did note some arcing on the batt post as I momentarily touched the jumper wire to post.

Much more swearing ensued. Rock auto are happy to give me a store credit so long as I return the new motor, however since I am in Australia the return shipping was as much as the original purchase.

I figured I would investigate the old motor, cant be too much wrong with it.
From what I can see a clean up of the armature and a new set of brushes would probably do the trick.
Would save all the expense of returning the new motor and the original seems better constructed having a thermal cutout feature built in which seems to be lacking in the Chinese made replacement.

So hoping someone can advise how to diagnose the old motor, am I doing something wrong in trying to bypass the in car circuit and applying battery power direct to the terminals (as suggested by a google search).

Pics of old and new motor attached
 

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Bentley

Veteran Member
Aug 14, 2020
697
I have found that with the driver side switch overiding the others it can make testing somewhat tricky.... I always check out the drivers side switch assembly first
Was going to ask " are you sure its the motor" but I see you already figured that out....
Carry on ....
 
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Gamma454

Member
Jan 1, 2022
67
I made a 4 relay system with original harness so the window switch just acts as a ground for the relays. Then the window zip up and down straight off battery, fused of course .
 

ishayne

New Member
Feb 26, 2024
3
I made a 4 relay system with original harness so the window switch just acts as a ground for the relays. Then the window zip up and down straight off battery, fused of course .
can you give a short description of how you wired this?
Thx
 

Gamma454

Member
Jan 1, 2022
67
 

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