Reverse Switch
#1
Reverse Switch
87 TII drive train in an 88 convertible.
My reverse switch has an internal short to ground, causing the meter fuse to blow every time I put it in reverse. Nothing new here, it's a common problem, right?
So this came to my attention 5 years ago, and I'm tired of not having reverse lights.
Fast forward, and here I am now looking for a new switch, and it seems pretty impossible.
My car does not have the factory ECU, and I no longer have a shift light. So the fact that the reverse switch is also the 5th gear switch is useless. I just need a reverse switch.
So is it possible to use the NA switch? Same thread pitch? Will it still actuate in reverse (but not function as a 5th switch?)
I realize they're not the same, but I just want to know if installing the NA switch in a TII trans will actuate the reverse lights?
Or is there some other way of fixing this issue? I saw a post from icemark years back about taking it apart and cleaning it out. Anyone tried that?
My reverse switch has an internal short to ground, causing the meter fuse to blow every time I put it in reverse. Nothing new here, it's a common problem, right?
So this came to my attention 5 years ago, and I'm tired of not having reverse lights.
Fast forward, and here I am now looking for a new switch, and it seems pretty impossible.
My car does not have the factory ECU, and I no longer have a shift light. So the fact that the reverse switch is also the 5th gear switch is useless. I just need a reverse switch.
So is it possible to use the NA switch? Same thread pitch? Will it still actuate in reverse (but not function as a 5th switch?)
I realize they're not the same, but I just want to know if installing the NA switch in a TII trans will actuate the reverse lights?
Or is there some other way of fixing this issue? I saw a post from icemark years back about taking it apart and cleaning it out. Anyone tried that?
#2
CC of L-Squared Shots
I've never really had experience with using a different switch as mine have always worked...
However, I also don't see why you couldn't make your own circuit with the switch connected to a new relay with its only purpose was to route power to the reverse lights? It's only a few wires and a new relay as with any circuit.
However, I also don't see why you couldn't make your own circuit with the switch connected to a new relay with its only purpose was to route power to the reverse lights? It's only a few wires and a new relay as with any circuit.
#3
talking head
NA " M " box switch is different
any jap import FC gearbox will have a two wire switch ( reverse only ) that i expect are not in the same demand as the 4 wire switches on oz and US vehicles
hints the rx5 5 spd ( the early "R" box ) has the right switch
any jap import FC gearbox will have a two wire switch ( reverse only ) that i expect are not in the same demand as the 4 wire switches on oz and US vehicles
hints the rx5 5 spd ( the early "R" box ) has the right switch
Last edited by bumpstart; 05-18-14 at 05:04 AM.
#4
Well, the rx5 isn't very common in the states, but I'm sure the Japanese model could be sourced easily enough.
I considered using the switch as a switched ground, but I'm not too sure how reliable it is as a ground seeing as it wasn't designed for that. The question then would be "how long will it last at that point?"
I considered using the switch as a switched ground, but I'm not too sure how reliable it is as a ground seeing as it wasn't designed for that. The question then would be "how long will it last at that point?"
#5
Rotary Freak
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well, if you use it as a switched ground for a relay, you'll only be passing 100 ma through it or so, it can definitely handle that.
I had to take apart the switch & clean it out on my transmission when I first did the turbo swap - the worst part was just cutting some of the crimping between the metal housing & the switch out so that you could get to the guts of it. It wasn't difficult at all, just make sure you think about how you're going to re-attach the metal housing to the switch.
I had to take apart the switch & clean it out on my transmission when I first did the turbo swap - the worst part was just cutting some of the crimping between the metal housing & the switch out so that you could get to the guts of it. It wasn't difficult at all, just make sure you think about how you're going to re-attach the metal housing to the switch.
#6
Make It Happen!
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why not just get a new switch? https://www.mazdatrix.com/86-92Electrical-Chassis.htm
#7
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I had to take apart the switch & clean it out on my transmission when I first did the turbo swap - the worst part was just cutting some of the crimping between the metal housing & the switch out so that you could get to the guts of it. It wasn't difficult at all, just make sure you think about how you're going to re-attach the metal housing to the switch.
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why not just get a new switch? https://www.mazdatrix.com/86-92Electrical-Chassis.htm
#9
Rotary Enthusiast
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When our JDM Tii arrived the reverse switch was broken off but the plunger and base were still there. I hooked up a 12v button switch like you'd get at Radio Shack by using that epoxy clay. I think I had the wrong type of switch and had to hook up a relay to reverse it but it worked fine for several years.
#10
Well, Ido know how to search quite well. After a lot of searching, I found nothing for an S4 transmission. The mazdatrix website says it's for an S5, and I can't tell if that's the same as for an S4 or not. And at $170, I'm not just going to order it and hope for the best. I think I'll try my hand at disassembling it to see what's inside. If it breaks, it's nothing lost, so I only have something to gain at this point.
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