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Write ups and tutorials for maintenance and modifications.
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Quick & Easy Door Switch Repair.

Mon Jun 29, 2015 10:16 pm

I have been dealing with a faulty set of door switches since I bought my Celica. I have cleaned/lubricated both but only had positive results on the left side. Today I snatched a couple from a local junk yard as well as a Passenger side seat belt. I replaced the switch while I had the trim off to replace the belt but unfortunately that switch was also faulty. . .

Determined to fix the issue while I was motivated, I disassembled one of the extra switches. I found the issue to be with corrosion on the plate that the 6mm screw goes through.
IMG_20150629_172140_278.jpg


Disassembling isn't necessary if you have a small file, just insert between the plate and the plunger thing like this:
IMG_20150629_171705_281.jpg


Test (door open):
IMG_20150629_180509_221.jpg


Although this worked great for me there is a chance that it may not for others because I noticed on the second switch I disassembled that the contact point on the plunger thing had worn off completely.
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Re: Quick & Easy Door Switch Repair.

Mon Jun 29, 2015 10:25 pm

Here's an example of the switch with the worn/broken contact on plunger.
IMG_20150629_182002_515.jpg

IMG_20150629_182034_890.jpg
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Re: Quick & Easy Door Switch Repair.

Tue Jun 30, 2015 12:44 am

thanks for the info lots of the celicas have this problem

Re: Quick & Easy Door Switch Repair.

Tue Jun 30, 2015 12:56 am

Hope it works for others, many Toyotas use this same switch.

Re: Quick & Easy Door Switch Repair.

Tue Jun 30, 2015 6:55 am

I would suggest just grabbing ls400 units like I did. Much nicer

Re: Quick & Easy Door Switch Repair.

Tue Jun 30, 2015 11:29 pm

Brand-new aftermarket ones are not expensive, either.

I usually encourage a little refurbish, but mine were far beyond a little cleaning.

Re: Quick & Easy Door Switch Repair.

Tue Jun 30, 2015 11:29 pm

Cargo pants at a junk yard is free! :)

Re: Quick & Easy Door Switch Repair.

Tue Jun 30, 2015 11:49 pm

^ Agreed!

Re: Quick & Easy Door Switch Repair.

Wed Jul 01, 2015 6:26 am

I vaguely recall a Toyota TSB saying that they redesigned these switches at some point to make them more durable. I can't find it now though. When I bought my Celica ST in 2002, the switches weren't working. I replaced them shortly after and the replacement switches are still working fine today. The factory parts are still available and not terribly expensive either. I ordered a pair for the all-trac from Toyota_Todd for cheaper than I could find aftermarket ones. And well, they're still in the box they shipped in...waiting for a nice sunny day for me to install them...along with a few hundred other parts I ordered.
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