Notices
LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Bad Master switch or dead window motor?

Thread Tools
 
Search this Thread
 
Old Apr 14, 2018 | 01:46 PM
  #1  
stoney1997's Avatar
stoney1997
Thread Starter
Rookie
 
Joined: Dec 2017
Posts: 45
Likes: 2
From: TN
Question Bad Master switch or dead window motor?

Winter has finally disappeared in good ol' East Tennessee and I've finally had the chance to tackle the little issues.

I have a problem with, possibly, the master switch. The driver side window will roll down, but not up unless I tug and pull until it randomly decides to go up again, IF IT DOES. The other 3 windows work perfectly fine. I can hear all the clicks when I mess with the other windows, but I hear nothing when trying to mess with the drivers window.

I took off the switch, and looked at it, and it looks like the metal/copper lead going to the drivers switch is "burnt" or kind of a warped color but everything else looks mint.
So could I save a few dollars by just buying a master switch or do I need to dig deeper to see if the window motor is bad (too)?
Reply
Old Apr 14, 2018 | 07:53 PM
  #2  
Moarpower's Avatar
Moarpower
Lead Lap
 
Joined: Apr 2017
Posts: 701
Likes: 29
From: Qld
Default

I have swapped out and cannibalised many of these switches. They are very temperamental and extremely fragile these days.

I would honestly start buying a few when you see them. Get a working one and check if it works. Always replace the cheapest part first after diagnosis.
Reply
Old Apr 15, 2018 | 12:19 AM
  #3  
stoney1997's Avatar
stoney1997
Thread Starter
Rookie
 
Joined: Dec 2017
Posts: 45
Likes: 2
From: TN
Default

Originally Posted by Moarpower
I have swapped out and cannibalised many of these switches. They are very temperamental and extremely fragile these days.

I would honestly start buying a few when you see them. Get a working one and check if it works. Always replace the cheapest part first after diagnosis.
Well I went ahead and bought a switch off ebay for $30, so we will see by next week if I bought a fancy new gadget that doesn't work or the holy grail.
Reply
Old Apr 14, 2020 | 01:32 PM
  #4  
blkstealthpaid4's Avatar
blkstealthpaid4
Advanced
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: May 2001
Posts: 652
Likes: 7
Default worked?

Originally Posted by stoney1997


Well I went ahead and bought a switch off ebay for $30, so we will see by next week if I bought a fancy new gadget that doesn't work or the holy grail.
Did it fix it
Reply
Old Apr 14, 2020 | 08:43 PM
  #5  
stoney1997's Avatar
stoney1997
Thread Starter
Rookie
 
Joined: Dec 2017
Posts: 45
Likes: 2
From: TN
Default

Originally Posted by blkstealthpaid4
Did it fix it
Actually yes. Surprised to see a comment 2 years later.

The original master switch had archs and whatnot along the path for the drivers switch and part of the passenger switch. Plugged in the new switch and Everything worked perfectly fine afterwards. Its definitely the cheaper option to go for to sort out whether it' a switch or a window motor.
Reply
Old Apr 15, 2020 | 06:39 AM
  #6  
CELSI0R's Avatar
CELSI0R
Racer
10 Year Member
Photogenic
Loved
Community Favorite
 
Joined: Nov 2015
Posts: 1,788
Likes: 412
From: NJ
Default

Originally Posted by blkstealthpaid4
Did it fix it
What are the symptoms your car has?

I would recommend testing the motor first, before buying the switch. All it takes is a battery and a few jumper wires to the connector.

Does your window work at all? Does the motor make any noise? Do your other windows work?
Reply
Old Apr 15, 2020 | 08:45 AM
  #7  
blkstealthpaid4's Avatar
blkstealthpaid4
Advanced
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: May 2001
Posts: 652
Likes: 7
Default

I replaced with a switch from the junkyard.Unless my junkyard switch was bad
Reply
Old Apr 15, 2020 | 08:46 AM
  #8  
blkstealthpaid4's Avatar
blkstealthpaid4
Advanced
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: May 2001
Posts: 652
Likes: 7
Default

My junkyard's window cancel button was sticking.smh.So I need a to try a 3rd switch.smh
Reply
Old Apr 16, 2020 | 07:35 AM
  #9  
greasegun's Avatar
greasegun
Driver School Candidate
 
Joined: Jan 2010
Posts: 45
Likes: 4
From: ontario
Default

Originally Posted by stoney1997
Winter has finally disappeared in good ol' East Tennessee and I've finally had the chance to tackle the little issues.

I have a problem with, possibly, the master switch. The driver side window will roll down, but not up unless I tug and pull until it randomly decides to go up again, IF IT DOES. The other 3 windows work perfectly fine. I can hear all the clicks when I mess with the other windows, but I hear nothing when trying to mess with the drivers window.

I took off the switch, and looked at it, and it looks like the metal/copper lead going to the drivers switch is "burnt" or kind of a warped color but everything else looks mint.
So could I save a few dollars by just buying a master switch or do I need to dig deeper to see if the window motor is bad (too)?
I just opened mine and cleaned it with smooth sand paper and wiped it off with a isopropyl alcohol. And the switch that does not work for the back window i put in an aluminum foil to have a full contact and it works. Just be careful when you open it up there are 4 or 5 little springs that will pop out.
Cheers
Reply
Old Apr 16, 2020 | 07:50 AM
  #10  
CELSI0R's Avatar
CELSI0R
Racer
10 Year Member
Photogenic
Loved
Community Favorite
 
Joined: Nov 2015
Posts: 1,788
Likes: 412
From: NJ
Default

Originally Posted by blkstealthpaid4
My junkyard's window cancel button was sticking.smh.So I need a to try a 3rd switch.smh
Clean the contacts before getting another switch.. Don't throw more parts at it yet.

Are your symptoms the same as stoney's? I would also test your window motor, in case it isn't the switch.
Reply
Old Apr 17, 2020 | 05:23 AM
  #11  
blkstealthpaid4's Avatar
blkstealthpaid4
Advanced
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: May 2001
Posts: 652
Likes: 7
Default

The same exact symptoms.I already opened and tried re-soldering some contact points on the master switch.The second junkyard switch had the window lock button not either staying down or up.3 rd switch is on its way.Upon arrival, I will pb blaster the regulator while changing .We will see when it arrives.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
wahaus
LS - 1st and 2nd Gen (1990-2000)
5
May 29, 2019 07:46 PM
dadewi
GS - 1st Gen (1993-1997)
3
Sep 18, 2012 09:16 AM
cmarsh
GS - 1st Gen (1993-1997)
6
Sep 26, 2009 05:32 PM
toykilla
Maintenance
1
Oct 19, 2006 03:50 PM




All times are GMT -7. The time now is 12:30 PM.