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Modified Tech Discussion Forum for Tech related discussion for Modified XJ's and MJ's.

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  #76  
Old October 10th, 2021, 10:21
azzy89 azzy89 is offline
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Booster Upgrade

Quote:
Originally Posted by giacomo.m View Post
I also saw that there is another white switch on the brake pedal, on the top what is its function ?

could it possibly be used for the rear stop lights ?


Giacomo

That switch should be your torque converter lock up switch, some people have used them for brake lights as well. For mine, when doing the WJ master and booster swap, I really had to mess with that switch to get it to function 100% of the time. I had to leave the bolt on the pedal a little loose and had to double nut it. Take care if using the torque converter lock up switch.


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  #77  
Old October 10th, 2021, 12:20
giacomo.m giacomo.m is offline
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Re: Booster Upgrade

Thank you azzy89
I will try to loosen the brake pedal bolt, and what problem could happen if i used the white switch for the brakes lights ?


Giacomo
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  #78  
Old October 10th, 2021, 23:58
azzy89 azzy89 is offline
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Quote:
Originally Posted by giacomo.m View Post
Thank you azzy89
I will try to loosen the brake pedal bolt, and what problem could happen if i used the white switch for the brakes lights ?


Giacomo

Well if something gets wired wrong you could potentially fry your TCU. But if you use it just as a switch it should work fine. Also keep in mind the brake switch is replaceable, I believe the TC switch is JY only.


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  #79  
Old October 11th, 2021, 00:01
azzy89 azzy89 is offline
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Booster Upgrade

Here’s an article to check out

https://www.google.com/amp/s/budgetg...light-fix/amp/


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