gt86 2017 cluster working on a pre 17 car
 

Hey guys! just wanted to show you guys what ive been working on.

Recently had a dilemma of buying a brz 2015 vs 2017 limited. but what i loved more on the newer model was the cluster looked a bit more updated. so i looked around and some people claimed it could some said you had to reprogram the cluster ... so i wanted to show you guys my findings as best as i could.

So if you want to do this switch and make it look as stock as possible, you will need to buy the cluster, the new steering wheel, airbag ( slightly different fitment from 13-16 vs 17-today), new clock spring. and any plugs associated to it (re-pining might be needed). so it can get expensive if you want to do this conversation.

Now to the question that alot of people have the issue when replacing a new cluster... If you have a turn key car (not a push start), the instrument cluster is part of the immobilizer system. When you replace a cluster, according to toyota TIS, if you are replacing with a brand new cluster, as long as you have everything else the same (BCM, KEY, ECU) it is pretty easy to program the cluster to the car using techstream. But it did not mention anything about used clusters. But according to some reports, some cars dont start when switching their cluster out on a turn key. Thus i think i can come to a conclusion that regular techstream cant program a used cluster to a different car.
(unless in the future i find out if it we can make the cluster "virgin" by reflashing the eeprom.)

This lead me to my first question if anyone can answer... These new cluster with the LCD on them, are they only in models that have push start? because.. it that is so. The cluster was never "binded" to a car because there is no need to.. would it mean they are still "virgins" in the sense there is no immo code stored into it.

Now for push start cars its almost plug in play. no issues.
brz or gt86 it worked fine.

[ame]https://www.youtube.com/watch?v=a***Pq4i5gQ[/ame]

So! Now for the next thing. We have to get the directional pad that's usually in the steering wheel ive worked the resistance on the buttons in order to get something going. If any of you have any suggestions where to put the buttons at let me know. I do have a 3d printer .. so if we have to make custom plastic pieces i dont mind.


http://www.geraldjustprojects.com/wp...2.29.49-AM.png

So im trying to make it as simple as possible. disconnect the old cluster.. add two extra pins in the back of the connector.. and connect the third cable to ground.

Im also thinking of using tese small 5way directional switches.. but there will be a extra button for the "back button that needs to be there as a second thing.
https://www.adafruit.com/product/504...BoCWH4QAvD_BwE

Attachment 169832

Any thoughts guys?

BTW does anyone have a BRZ 2017 cluster that would want to switch with mine? My OCD when turning on/off the car and seeing the 86 logo on a BRZ is weird lol. (or prehaps if i get a brz i could see if the setting for brz/gt86 are just a BIT flip on the eeprom or something.)

EDIT: its is a 2K resistor not 2.2 corrected it.

sorry for the double post. not sure how to delete it.

You can't program with techstream without the special security access. I bought the toyota factory access stuff and the option for security access is there, but it requires permission. Something that has to be done by a dealer.

I had plans to just add the buttons and put them in the center console where the heated seat switches go.

Hahaha, good stuff man. Are the cluster connectors the same? If so, this swap is ridiculously simple.

Yes they are. They are plug and play for the most part. If you have a key car, it just needs to be programmed to your car before it will start. Push button ignition cars will work right out of the box minus the Odometer being off. Some dealers should be able to change that. Only other thing that needs done is adding the wires for the screen controls.

Dam well from what i remembered it would be difficult if all keys are lost but the best info i found on this was this.

Attachment 169845

Under procedure "F" its not under the immo stuff its under the body control stuff.

I had one of those amazon techstream compatible cable that come with CD that have "techstream" so il test it out. They dont come with the security features so il give it a shot.

I though of that too but the seat heater switches get in the way under the panel. I was thinking maybe the radio trip panel on the left close to the wiper stock.

@geraldjust.. you a push-star BRZ correct?
I have a 17 and have ben looking at parts to make the swap(if possible).
Found these two for the gauge for the 17 860:
SU003-07448 and SU003-07449
Not sure whats the difference.
For the switch i found this part number:
SU003-07459
http://i226.photobucket.com/albums/d...psr9tnfscz.jpg

http://i226.photobucket.com/albums/d...psxstbsv3q.jpg

With my 17 86, all I would need is to get the gauge programmed and install the new switch?

@el-guapin
well 17+ that have atleast radio controls have the new clock spring that have the extra pins for the radio. so you might be ok, all you would need is the switches.

And yes! push start BRZ.
i don't see what is the difference between the two.

Well perhaps just the switch...

But not sure if from the clockspring you can always check the back of your current cluster and see if pins 23 & 26 have cables attached to them. (brown-white stripe & blue-white stripe) See the pictures i attached on my first post. If they are there.. it might be very simple.

And if you got a push start button all you need to get programed is the miles corrected.

if turn key then thats when it gets a lil dicely.

Thanks for the info. I, unfortunately, have turn-key ignition. Will have to research more about programming the new cluster.

@el-guapin

Toyota dealer could prob do it for you. Im looking into the internal of the clusters. Perhaps the immo keys are saved in the eeprom so it could be copied over. Or something similar to that.

After much tinkering i figured out how to reset the cluster, So it could probably accept new programing keys for immo. but in order to program it you would still need to go to a dealer. Figured out how to correct the milage too though.
http://www.geraldjustprojects.com/wp...829_122114.jpg

If anyone is interested i can dump the flash chip on the cluster. This is what keeps all the graphics for the screen. Prehaps if i get my hands on the "GR" cluster or STI or BRZ i could dump those too in order to make them interchangeable. or If anyone is willing to help me reverse engineer the flash we could make custom logos or something.

If anyone is interested here are the pictures of these new clusters internals. and the flash chip close up.

http://www.geraldjustprojects.com/wp...829_122226.jpg
http://www.geraldjustprojects.com/wp...829_122234.jpg
http://www.geraldjustprojects.com/wp...829_133502.jpg

Amazing thread. keep it going. :bonk:

Subbed

@geraldjust... Thanks for sharing!. Just a thought, you should get a hacked techstream program(easily available online)and one of those eBay mini VCI cables to see if you can program the cluster. Actually, if you buy the cable the program is included.

I could try to do that but since i dont have a turn key car i might not see the same options as that car. So for now its up in the air about that.

Does anyone know if any aftermaket face guage overlays for the 2017+ clusters?

Hey guys! i made a small board to try to fit under the blank button on the Traction control button area.
Im thinking probably drilling two small holes to accommodate to the Joystick shaft and the back button shaft to be able to stick out and probably add some decals arrows to make it as OEM looking as possible.

http://www.geraldjustprojects.com/wp...3348692960.jpg

Sorry wanted to include a upclose pcb pic of how small it looks.

http://www.geraldjustprojects.com/wp...8971043666.jpg

Nice idea !

Appart from the price I'd love to have the new cluster installed !

well if i make this kit not sure what i would price it at. Its a very niche market for these things. But like myself im sure there are some people who might be interested in it. But the prices of used cluster could vary and new ones are a bit expensive.

If anyone has a BRZ 2017 lcd clsuter and wants to switch to a gt86 lcd let me know! il even program the mileage to correct it for you lol.

Is the mileage on the 2017 cluster stored in the flash chip or a separate eeprom like the 93c66 on the older clusters? Care to share what programmer you used to read and write to the flash chip? I'm interested in a kit if you decide to make one but the price of a new cluster is prohibitive. I'd use a used cluster but only if I can correct the mileage.

Yea its stored as a EEPROM. its a 93c86 i believe. But the format compared to the older clusters is not the same. its using a different storing system. Similar but not exactly the same. im using a tl866cs programmer. But almost any EEPROM reader/writer could work. Make sure you have the right data though. So double read and then write back the same data to see if it stuck. I first ran into a problem of accidently using a 8bit format rather then a 16 bit format.

IF your interested i might offer a mileage correction service if anything.

Oh again this will work plug in play with push start cars! if you got key car you will have to go to a dealer to get it programmed anyways.

Thank you very much for the info! I have a push button start car so the immobilizer won't be a problem. I'd like to have it display the correct mileage though. I only have an R270 programmer and I'm not sure if it can read/write to a 93c66 or c86. Unfortunately mileage correction service won't work for me since I am halfway across the globe.

you could always try to get yourself a 93c66 chip and see if you can read or write to it. im sure they could be bought cheaply from were you are. If you want and get your cluster, read and send me the bin file for the eeprom. And il send you the corrected file to burn back to the cluster.

SO! update guys!

The rest of the components are here and i was able to put some together. But i ran into a issue that i did not anticipate.

http://www.geraldjustprojects.com/wp...0224637202.jpg

So the blank button clips on onto the rest of the bracket with two side pivot points. So if i make a kit. would you guys be comfortable braking off those two tabs to make the pcb fit inside the plastic then glue it down with epoxy? that way would be the most solid feeling switch. OR, i could try to 3d print a button that would somehow fit in and screw on though the bottom. But i mostly have just white and black filament.

And in order to get the three wires out of the box. you will need to drill a hole thought the front or back of the side of the holder. Any thoughs guys?

Hey guys! so another update after a day of tinkering with my 3d printer i managed to get a button with the same curve on top and bottom. But i havent been able to get a goood looking finish on it. So with a couple of minutes of sandpaper it gives a good matt finish. il probably paint it later on. I haven't received the low profile tach button for the back so i'm just waiting on that to complete the installation. There will be another side to the 3 pin cables were it will have the extra pins to attach to the connector in the cluster.
http://www.geraldjustprojects.com/wp...3294471964.jpg
http://www.geraldjustprojects.com/wp...2953356178.jpg

any alternative for us AT plebs who already have buttons where you intend to put the controller?

Well i guess the Conversion from AT to MT would be to hard hu. lol kidding. I can perhaps print out a small bracket to to go under the board and you can screw it down onto the plate were the seat warmers go. If you dont have heated seats lol. And i can add a template were to drill the holes. and prob add M3 hex nuts and bolts.

Could that work?

LOL I have heated seats too. only thing I could think of would be some kind of switch in the empty space where the headlight controls and trunk release go, but even then, once I install my fog lights even that space will be taken up.

HAHA your right .. hm.. I have a idea! how about on the left side of the radio trim. right behind the wiper stock. its a very common plastic trim plastic. If people mess it up, it would not be too complicated to replace that trim plastic.

pic?

Here ya go!
http://www.geraldjustprojects.com/wp...3018310887.jpg
http://www.geraldjustprojects.com/wp...2577322909.jpg

its meant to be as small as but not coming off.

lol I meant a pic of the trim you were talking about

Oh sorry! i mean this trim. Either the Radio trim on the left or the cluster trim on the right.

http://www.geraldjustprojects.com/wp...5468137281.jpg

So finally installed everything. I discovered a extra ground pin on the connector that not populated on the pre 17 cars. So, adding the ground cable will be easier then what i was originally thinking. So its just a matter of adding three pins to the back of the Cluster connector.

Woh! it does make it feel a tad Better.

OH! random! Apparently the cluster stores not only if its KPM vs MPH, Ambient in C or F.... but the Automatic AC temp.. When i corrected the odometer Mileage on the eeprom for my car... i flipped a bit down bellow those setting. On the bench i did not see anything but as soon as i plugged it into the car the car... the AC switched to C lol...

http://www.geraldjustprojects.com/wp...2505570677.jpg

[ame]https://www.youtube.com/watch?v=rhLV551YVm4&t=[/ame]

@geraldjust... Do you know if the cluster is specific to a manual or auto vehicle?. Or the same one works on both?

Same on both. I got my cluster from a A/T. I did not notice anything crazy, even the Gear Selector Indicator works just fine on a Manual.

Pro tip! make sure you dont unplug the cluster when the car is on. if not some ECUs will keep a error code. lol.

THNX!!.. also, which part number you have? I asked because I found primarily two: SU003-07448 and SU003-07449. Not sure what is the difference.

SU003-07448 is what i have but i think the -9 is just the next year update part number.

@geraldjust could you share how did you dump the cluster? I got 86, BRZ, GR86 and STI version on hand, see if we could compare the binary.

Are you talking about the eeprom or the flash chip?

for the flash chip is one of these:

https://www.ebay.com/itm/New-Flashca...68Zg:rk:1:pf:0

You have to desolder it from the board. (hot air station make is suuper easy)
Mines flash reader is coming in the mail any day now. But you do have t be proficient with doing board level repairs.

Don't think I got the enough skill and don't want to ruin the dash:bonk: See if it is possible to read by soldering a few legs to the chip. Will keep you posted.