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Old 03-13-2019, 02:17 PM   #1
89AKurt
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Wiring connector for back-up switch

I found the wire terminal plug that goes to the back-up switch on the transmission is messed up. When I barely got it inserted onto the terminal, it works. But it falls off too easily. Is there a source for just the terminal plug?

I would show pictures, but Flickr is being stupid at the moment.
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Old 03-13-2019, 05:38 PM   #2
'68OrangeSunshine
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Re: Wiring connector for back-up switch

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Originally Posted by 89AKurt View Post
I found the wire terminal plug that goes to the back-up switch on the transmission is messed up. When I barely got it inserted onto the terminal, it works. But it falls off too easily. Is there a source for just the terminal plug?

I would show pictures, but Flickr is being stupid at the moment.
Kurt, have you tried bending back one of the terminal prongs, so there's more internal tension on the connector?
Did the plug come into contact with hot exhaust pipes?
Don't know of any vendors carrying Backup Light Switch Plugs for the SM465.
Seems like a junkyard quest, or post a WTB ad.

For pix, I upload my digital camera shots to my laptop, then pull them out of the Pictures file to post. No middleman.
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Old 03-13-2019, 07:24 PM   #3
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Re: Wiring connector for back-up switch

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Originally Posted by '68OrangeSunshine View Post
Kurt, [...]
For pix, I upload my digital camera shots to my laptop, then pull them out of the Pictures file to post. No middleman.
I'll look for those scenarios.

Here is a picture. I thought we were limited on digital space for posting pictures. I tend to take a few.

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Old 03-13-2019, 10:22 PM   #4
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Re: Wiring connector for back-up switch

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Originally Posted by 89AKurt View Post
I found the wire terminal plug that goes to the back-up switch on the transmission is messed up. When I barely got it inserted onto the terminal, it works. But it falls off too easily. Is there a source for just the terminal plug?

I would show pictures, but Flickr is being stupid at the moment.
Mine is the same way. I think the plastic has shrunk with age, so it's nearly impossible to get it fully seated. I heated the piece you show in your picture with a hair dryer and it snapped right on. A very thin coating of grease inside the plug also wouldn't hurt. Give it a try...
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Old 03-14-2019, 12:13 AM   #5
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Re: Wiring connector for back-up switch

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Mine is the same way. I think the plastic has shrunk with age, so it's nearly impossible to get it fully seated. I heated the piece you show in your picture with a hair dryer and it snapped right on. A very thin coating of grease inside the plug also wouldn't hurt. Give it a try...
"Hey neighbor, can I borrow your blow drier?" What for? If that's what it takes, I'll try it.
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Old 03-14-2019, 12:29 AM   #6
'68OrangeSunshine
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Re: Wiring connector for back-up switch

The system chokes on multiples. There is a limit to 5, but I've been rejected by 2 or 3 sometimes. Often I get some gibberish about 'Security tokens.'' If I wait or cut down the number of pix, it posts.

Funny, LMC sells the Backup Light Switches, but no pigtails for it.
I would try Saxart's idea. How much have you cleaned off that gearbox?
Maybe if you got it very clean, things might just fit.
Spray it with degreaser, then taxi over to the $1.50 carwash and zap it good. Wear your wetsuit. Clean trucks run better. Plus you'll be dropping off 20 to 50 lbs of caliche.
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Old 03-15-2019, 11:20 AM   #7
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Re: Wiring connector for back-up switch

Just ditched my stick for an auto, so got that harness neatly bundled. If you were closer, i would offer it up to you, but otherwise check the bone yards.
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Old 03-15-2019, 11:45 AM   #8
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Re: Wiring connector for back-up switch

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Originally Posted by '68OrangeSunshine View Post
[...]

Funny, LMC sells the Backup Light Switches, but no pigtails for it.
I would try Saxart's idea. How much have you cleaned off that gearbox?
Maybe if you got it very clean, things might just fit.
Spray it with degreaser, then taxi over to the $1.50 carwash and zap it good. Wear your wetsuit. Clean trucks run better. Plus you'll be dropping off 20 to 50 lbs of caliche.
For once, I'm ahead of you! Been to all the car washes around here that *might* have hot water and high pressure, numerous times, even when the transmission tunnel was off I did from inside the cab. I got a can of the degreaser to spray on before going again. It's cleaner than 99% of the vehicles on the road. LOL Also costs $1.75 or $2.00 up here. I should take more time to clean out the plug, with a toothpick and carb cleaner.
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Old 03-15-2019, 11:47 AM   #9
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Re: Wiring connector for back-up switch

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Just ditched my stick for an auto, so got that harness neatly bundled. If you were closer, i would offer it up to you, but otherwise check the bone yards.
Thanks for the offer, thought someone would have one cluttering up garage space. Stay tuned.....
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Old 03-16-2019, 09:49 AM   #10
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Re: Wiring connector for back-up switch

Have you compared it to the connector used on the front turn signal? They look pretty similar to the 68-72 style.
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Old 03-23-2019, 09:51 AM   #11
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Re: Wiring connector for back-up switch

Are you stuck on having an oe connector? I used female 1/4" spade terminals on mine. polarity doesnt matter, its simply closing a ground circuit.
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Old 03-23-2019, 01:58 PM   #12
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Re: Wiring connector for back-up switch

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Are you stuck on having an oe connector? I used female 1/4" spade terminals on mine. polarity doesnt matter, its simply closing a ground circuit.
I was thinking of doing that, thanks for specifying the size. Having Pebble Beach standards is out of the question.
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