Toyota MMT BIG problem

**Shah001** · 1st December, 2017, 11:15 PM

Hello all
i have same problem, the n disappeared on my Yaris mmt. Can anyone help please.

**Shah001** · 1st December, 2017, 11:17 PM

Also can anyone please tell me which eeprom I need to reload??

**vasko** · 2nd December, 2017, 01:31 PM

check transistors for clutch actuator and selector motors
many time i found burned transistors

**Shah001** · 8th December, 2017, 01:42 AM

Thanks for reply Vasko mate.
i will check the transistors tomorrow .
is it any chance you can tell me if the eeprom on this is 8pin one or more??
i can read and write the eeproms but I don’t know which one I need to rewrite.
i would really appreciate if you can point me in the right direction.
thanks.

**Shah001** · 10th December, 2017, 02:53 AM

Originally Posted by vasko

check transistors for clutch actuator and selector motors
many time i found burned transistors

Thanks for reply Vasko mate.
i will check the transistors tomorrow .
is it any chance you can tell me if the eeprom on this is 8pin one or more??
i can read and write the eeproms but I don’t know which one I need to rewrite.
i would really appreciate if you can point me in the right direction.
thanks.

**Shah001** · 10th December, 2017, 02:55 AM

Originally Posted by vasko

check transistors for clutch actuator and selector motors
many time i found burned transistors

I have checked the resisters but found all of them good.
now I really need your help.

**damian475** · 11th December, 2017, 08:00 PM

Vasko Ure dump is in x16 or x8?
Im looking for learned dump for 89530-70090
Asin 324811-13550

**SAMMAD67** · 26th February, 2018, 07:13 PM

I have Toyota Aygo 2011 ( model KGB10R )with MMT . There was Clutch and bearing noise at the time of especially upshifting.I initialized the clutch cover by using GTS. but after that the GEAR POSITION INDICATOR from the combination meter display disappeared. i have done calibration multiple times but there is no activity in the display. the car is not even shifting the gear and is not moving. please what is this happening and how to get rid of this situation. is this EEPROM problem or something else if yes then from where i will found learned EEPROM for TOYOTA AYGO 2011 MMT ECU part # 89530-70100.? Plese Help

**SAMMAD67** · 27th February, 2018, 05:36 AM

Originally Posted by dariobmw

Good morning i need help from a good toyota expert , i bought a toyota corolla with MMT transmission
and the clutch fried , after some time the car was on my garage a friend told , sell to me that .......
and now the problem started !
i detached the battery and changed the clutch , start the car ( from here all ok ) and a not good clutch
release was the first symptom (the car before run good but the clutch slip from all gears but no errors
on dash ) .
So the intention was to make a adaption to the clutch actuator (like the smart) and with the diagnostic
connected ,after the adaption the N on the dash disappeared OMG !!!!!!!!!! no more clutch no more
gear actuator no more rpm over the idle , the strange is on the dash NO LIGHT ON but no N too .
Now the car is a good ornament , and annoying to move .

1st question WHY THE N DISAPPEARED ?
2nd how can i make the car run again ?

Please no answer to take some petrol and burn because i a big temptation !

Hi, I have ToyotaAygo KGB10r with MMT. there was slip shifting problem i.e., a slipping noise and gear rattling noise heard mostly at the time of upshifting. i tried to calibrate its clutch cover with the help of Global Tech Stream. but as i performed calibration , the GEAR POSITION INDICATOR from the Combination meter display disappeared. now vehicle is shifting any gear and not moving at all. i have read your forum posts and think that you may have some idea about such fault.so kindly guide me in this course that why this problem caused like this . i am an automotive professional but have never seen such mmt transmissions. Please tell if its eeprom is corrupt and from where can i aquire this again?

**SAMMAD67** · 11th March, 2018, 04:16 PM

hi, i have toyota Aygo 2011 KGB10R with MMT ECU: 89530-70100 . I need learned EEPROM Dump. there is some calibration issue as no gear position shift indicator display in the combination meter even after dozens of time re calibration performed. no gear is being shifted.neither clutch nor transmission is being calibrated.I have used GTS and manual calibration method too(http://www.blue-print.com/mmt/INF134...65_266_274.pdf) . Need assistance in this problem.Thanks

**ladadens1** · 20th March, 2018, 01:15 PM

i have desolder the eprom.but cant whrite it.whats the trick to whrite it?

**SAMMAD67** · 25th March, 2018, 01:08 PM

PUT THE EEPROM IN THE CORRECT ORIENTATION INTO THE EEPROM CHIP HOLDER AND INSERT THE HOLDER INTO THE IC PROGRAMMER. THEN FIRST OF ALL READ IT TO SEE WHAT IS INSIDE YOUR EEPROM CURRENTLY.AND SAVE IT WHAT SO EVER IT WILL BE. THEN ERASE THE EEPROM AND THEN OPEN THE PROGRAM YOU WANT TO WRITE AND CLICK ON 'P' ICON TO WRITE THE PROGRAM INTO THE CHIP. AND THIS IS THE WHOLE STORY.THIS WILL BE A MATTER OF SECONDS TO WRITE A CHIP.

**hguritr** · 22nd June, 2018, 11:15 AM

i have change the clutch kit , ecu is toyota 89530-52160 , i have write your file , car is alive , but it start moving very bad same as at E and R ... how is possibile ?! thanks

**catalinonciu** · 2nd October, 2018, 09:28 AM

Hi Vasko,

What programmer i need for writing of the dump file?

Thx

**DenzoAutoTec** · 25th October, 2018, 04:03 PM

Originally Posted by shailinb

Hi Dariobmw,

I am having the same problem after changing clutch. No indicator on dash and only idle, no throttle response. Something went wrong during initialization.

Did you ever get your clutch fixed? If yes then how?

I looked at the nono94 method, but the corolla has a different actuator then the corolla (with two servo motors).

Hi friend. Did you manage to sort out the mmt issue. I need help