anyone figured out how to flash vt cluster?

[The1]

ive still got mine here, sorry i havn't had time just atm to continue with it, but will soon.

[The1]

ok got the pinouts, looking at the back of the cluster pin 1 being top left, pin 20 being bottom right.

Pin 6 is Ground
Pin 12 is Serial Data
Pin 19 is Power +12v IGN
Pin 20 is Power +12v

When i power the cluster up on the bench it beeps and displays the X for fault codes logged. So i sent F2,56,0A,AE to see if it would do anything and the fault indicator X went off and cluster flashed like it reset so is happy with that!

[The1]

a quick lil pulse circuit should do the job ......old school cable in the the drill trick.....just for new cars.

I made one for a mate a few years ago.....he wanted it to be set to the current (failed) speedo reading. it took about 28 hours to complete though.
I used a pic micro for the job.....some quick maths (very quick) and worked out roughly how many pulses were needed to get it right and set a "for next" loop. So my math was a little off, about 6000 km off but another 15 or 20 mins and the job was done.

I havent tried this on a VT cluster though.

Justin

Not sure but i think someone tried that and when you hit 999,999 that's it. Could be wrong.

[GM Tech]

No it just goes back to zero and then you can set it with tech 2. This is only needed for vx series 2 cluster from memory. All the others can be done via eeprom.

[js1973]

I was given a vt single window cluster and the onboard chips look totally different to the one in the pic would it be of any use to upload a few pics.

[js1973]

Is this the chip that stores the k's ? 93s56

[festy]

I'd take a guess that it is, that's a microwire serial flash IC.

[The1]

yeh the single window is different to the 3 trip window, i have both here, i think ive posted pics of the 3 trip window board before.

[js1973]

seems to be a common chip used in european cllusters.
Heres a few links that might be useful.

http://www.telwis.pl/ponyprog-i2c-eepro ... 637ce6d1b3
http://www.codecard.lt/carprog/software ... od_44.html
http://www.savebase.com/infobase/downlo ... er_136.pdf

[VX L67 Getrag]

I have 2 of these & both have flashable eeproms to change odo & more?

Part numbers on back where it has vdo stamp are 45311_10 TL & 4544_10 TL
& have possible dates in lower corner on back to 48 98 & 10 98?

1 is a triple LCD & other single LCD?