Backup Reverse Light Switch Alternative?

I take it the replacement was an aftermarket unit?

I bought a replacement from one of the vendors and since they all have the same one it really doesn't matter who. It lasted about 1500-2000 miles and this past week shorted to ground internally when I shifted into reverse. I want to find a different style.

Steve,

You might want to fire an e-mail off to Jon Haas. I seem to recall he was developing one that mounted in the shifter housing and used some sort of proximity sensor, to detect when the shift lever was in the reverse slot.

This was a while back but Brian Graham of Graham Tools/Pantera sold the newer version of the switch. My friend bought one and said it was a lot better quality and worked great. The new style replacement backup switch part # 06033aa. I don't know if the part number is Graham's or an actual manufacturer part number though.

The tool business is still on line but I don't know if he's still in the Pantera parts business but it wouldn't hurt to call. Here's a note I found on the website "A blast from the past...Graham Tool Company sold parts and provided restoration and customization services for DeTomaso Pantera owners. Our first company logo was designed by Chip Foose. It was in a shape that represented two new business ventures...teeth and tools. But what happened to the Pantera parts collection? Stay tuned...in fact.. we still have lots of Pantera parts in storage. What are you looking for? Call toll free at (888) 262-2550 or email Brian@GrahamTool.com"

Here'a the new switch installed in my friend's car -

Thanks for the info. It looks like that switch sits out quite far. I was hoping to keep it as compact as possible. Just need to find the right switch. The thread is a M10x1.0.

Steve

you can put it on a rocker switch or a shiftier tunnel switch triggered by shifting into reverse, this gets rid of the unsightly wire out the side of the Z.F..

one of my pet peeves with new cars...what is the purpose of the "backup light". cursing through a parking lot you can find backup lamps on with no one even in the car, no longer being the indication the car is starting to move backwards.


googling for backup switches, finding links that provide the thread size haven't been found by me.
something like this for a VW looks promising

like this, easy.

i took the old switch out that broke off when I pulled the tranney and went to Autozone and matched the tread size and pitch. then tweeked the adjustment till it worked but it was 7 years ago

I had this arrangement for over ten years, then when I got rid of my key I moved it to a starter trigger.

quote:

Originally posted by Joe 1974 L #6656:
i took the old switch out that broke off when I pulled the tranney and went to Autozone and matched the tread size and pitch. then tweeked the adjustment till it worked but it was 7 years ago

Joe,

Can you take a picture of your switch? Maybe look to see if it has any numbers on. It?

Thanks.

As you can see it cleans up the mess of the wire.

Chris, Any pictures? How did you mount the switch? Cleans things up in the engine compartment.

I used a TR6 brake lamp switch, drilled out the ZF housing to 12mm and THEN found out it was a Normally Closed switch!!

So I fitted a relay, but the switch had to be drastically modified for it to operate.

So if you also hear someone recommend this mod, it is possible, but not very good at all.

quote:

THEN found out it was a Normally Closed switch!!

Actually, it is a normally open switch.

At least it was when it left the factory.

What happens after that, especially with Panteras, is anyone's guess.

I continually fail to understand the logic to explain why an owner would modify a permanent part of one's car, such as a drilled-out selector housing cover, when a correct vendor-supplied part is readily available.

We are caretakers of our cars. They will live long after we are dust.

I'd hate to be the future owner who needed to replace this Pantera's back-up switch, then ordered a factory correct switch only to find what he somehow needs to replace is something (made by who?, on what cars?, what years?) entirely different, and "drastically modified". Should that hurdle be conquered, then he will find the altered wiring and need to figure THAT out.

Roland in Germany no doubt stocks this switch. Most likely OEM quality.

Lot of good that will do a future owner of a Pantera with a Triumph switch.

Flame suit on.

Larry

SOBill diagram showing the switch closed WHEN the selector is in reverse and has depressed the switch plunger.

When a momentary switch (one that automatically returns to its previous position when released) is labeled NO (normally open) that means when it is taken from it's packaging, sitting bare in your hand, the LINE and LOAD terminals of that switch are not internally connected and are not closing a circuit.

A NO momentary switch will only conduct current when it is depressed.

A NC (normally closed) momentary switch will STOP conducting current when it is depressed.

I believe what Peter was saying was that he found after installing the TR6 switch that it (the TR6 switch) was normally closed.

All the more reason to buy a known-to-be-correct OEM switch.

No drilling/tapping. No drastic modifications. No relay......

Why.... reinvent the wheel?

K.I.S.S.

Larry

I have a series of 3 switches that start the car, the back-up lights are powered by the starter activator switch. They are 1) powers up all ignition, power to running process. 2) power to starter ( back-up lights ). 3) start button to crank engine. I have a indicator light if I start to drive without turning the # 2 switch off. Their is a couple of real reasons this is practical, if your in a full throttle jam you can just hit the switch, very quick kill switch, without locking up your steering wheel. The other benefit is since the starter is independent you can bump or crank the engine without starting the engine.

Never mind...I readed slower and got it

the backup lamps come on with ONLY power to the starter push button

quote:

If I understand...

the backup lights come on when the starter is running.

what is the reason?

how about when reverse gear is selected?