[93zupra]

Hey all,

Just trying to share something I was able to mostly confirm over the weekend ( I say mostly because I don't have enough components connected to test the windshield wipers). Let me start by saying this is something I did with my car, if you do the same and somehow destroy yours I can't help you. With that said, I've been slowly restoring most of my interior (I plan on starting a build thread soon - the car is almost done), but the one component that was just awful to look at was the combination switch. The headlight switch specifically was worn and old looking with the decal mostly faded. The car has also had a broken clock spring ever since purchase. So, to remedy both of these, I've been trying to find a NIB replacement combination switch for quite a while with little luck. I know in 98 the supra toyota switched to a different style, and those switches are still available for purchase so I searched to try to find way to incorporate that to a 93-97 steering column. This didn't really amount to much, other than a ton of extra combination switches laying around that I have no use for haha! Not to mention, I might have had to enlarge the holes on the discontinued column cover to accommodate the arm style changed in 98 and it seems that the dash harness airbag wiring to the clock spring is longer in the 98 cars (I definitely didn't want to splice airbag wiring), but I never confirmed and it sort of fizzled out. Check below for the differences:

93-97(top) vs 98 (bottom)

98 style installed with the thicker arm style:

This led me to try to see if any other early to mid 90's Toyota's used similar combination switches/clock springs (6 turn clock spring with the same connectors) and were still available for purchase. With that said (and I might be wrong) I couldn't find any that had both rear wipers and a separate fog light switch on the headlight stalk. This didn't matter a ton to me as I've deleted my rear wiper and I assumed I would either wire the fog lights to come on with the headlights or just find an OEM Toyota fog light switch to incorporate in the interior somewhere. The closest I could find was a 93-97 Corolla which seemed to have a connector which would be plug and play.

They didn't list the length of the wiring from the switch to the connector so I was concerned about how that would fit, however, after install, it's almost a perfect fit. When the wheel is in its highest tilt position there is some slight pressure on the wiring, but it doesn't seem to be overly tight. The connector even has provisions like the stock one to lock into the steering column for an OEM fit. I was very happy with the result.

Here it is installed including my sweet new gauges (courtesy of the man, the myth, the legend, Stu Hagen!) - this is the first time I've seen them lit up in person:

A few notes...This is just me testing things out, I figured worst case if this didn't fit I could use the clock spring (mine has been damaged since purchase), also as I said I don't have enough connected to test the wipers, however the washer spray pump does work and the headlights, dash lights, blinkers and 'brights' all appear to work as they should. For those interested the part number is 84310-1A650. I was able to find one on the auction sight brand new and I'm sure if you look around you might find some more - it seems that some toyota parts sights list it in stock and some have it as discontinued. Also Standard Motor products makes what appears to be an aftermarket version as well: CBS-1011 found here: Standard Motor Products CBS-1011.

 

[pham]

Thanks this is nice because I know these a re fragile and easy to break pieces. When I purchased my MK3 this was broken and finding this piece for a 91 (post 89+ when they added the airbag and seatbelt safety features) this is a huge PAIN IN THE ASS part to find for a 89, 90, 91, or 92 supra - including the plastic clamshell covering the column.

 

[sci2000tech]

Thank you so much for this!

The plastic housing on mine broke where the headlight switch mounts, so when I would turn my headlights on it would be stuck on brights. I was able to repair it, but it just broke in another spot. I was about to try and retrofit an IS300 combination switch which I know doesn't bolt right up and would require some adaptation just to physically fit, let alone try and figure out the wiring. Just by knowing this unit will line up to the factory mounting spots you have saved myself, and I'm sure countless others, a lot of time and headaches.

Just to add some info, the IS300 clock spring does fit the 93 Supra combination switch and allows for some extra pins. I was able to use the IS300 clock spring and harness with an IS350 steering wheel and it allows for the steering wheel lights as well as radio control function with an audio control adapter.

 

[Halfwalker]

That's very cool - any chance you could post some details about what you did, what bits you needed etc. ?

I've been thinking about getting an IS300 wheel, which has the buttons for auto-trans shifting on the wheel. Can re-purpose those to anti-lag or something ... Going for an IS350 wheel with a bit more functionality could be very slick.

 

[Ken Robinson]

Thanks for the bit about the aftermarket part CBS-1011. I ordered it about two weeks ago. I'm fine with deleting my rear wiper and combining the fog lights with the headlights. Currently none of my lights (except brake and reverse) work. I've tested all other potential causes for this issue. So this is the only other thing that would make sense. Lets hope!

 

[93zupra]

Fingers crossed it works out. Can you post pictures of the part CBS-1011 when it arrives? I’m curious how close to oem it is.

 

[Ken Robinson]

Six weeks after ordering CBS-1011 I received an email this morning from Summit saying this part has been discontinued by the manufacturer. I've looked for an oem Corolla combo 84310-1A650 with no luck. Anyone know where else I could source one?