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tellboy

Mmt Gearbox Yet Again Flashing N In Drive Positions

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Hello guys

I refreshed my English and came again
Hey guys. I am the owner of a Toyota Corolla 2006 MMT 1,4 D4D with a semi-automatic gearbox. My problem is that sometimes it won’t shift upwards from 2nd to 3rd gear. The display will show that it’s shifted to 3rd but it will actually be in neutral and I have to let go of the gas pedal until it falls back to 2nd or change to manual controls and take it from there. I’ve noticed this happening when I’m “pushing hard on the gas pedal” to shift gears (RPMs getting above normal range); when I’m gently easing into a higher gear everything works smoothly. Sometimes it will shift up to 4th directly from 2nd instead. Rarely, and if I let go of the gas pedal, it will actually go into 3rd as it should have but only after a few seconds have passed.

Similar thing happens occasionally when I’ve managed to go into 3rd and then push it to go into 4th but it will jump up to 5th instead.
The guys at the official service told me I needed to change clutch disk, pressure plate and releaser (done that) and also the clutch actuator which is rather expensive though, so I’m trying to figure out if I can have it repaired instead? Or any other ideas how to fix this? Is it definitely the clutch actuator at fault in this situation?

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On 2/14/2018 at 6:59 AM, Spyros_Corolla_2006_MMT said:

Similar thing happens occasionally when I’ve managed to go into 3rd and then push it to go into 4th but it will jump up to 5th instead.
The guys at the official service told me I needed to change clutch disk, pressure plate and releaser (done that) and also the clutch actuator which is rather expensive though, so I’m trying to figure out if I can have it repaired instead? Or any other ideas how to fix this? Is it definitely the clutch actuator at fault in this situation?

Sounds like a combination of both the clutch wearing out and actuator getting old. What is the mileage of your car, has the clutch disk ever been changed? Do you also find the car has less power than before the shifting problem started?

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hello from me again... 2 years past and had this wellknown broblem again: flashing N and no gear to move.

Same solution again... changing the clutch disk set and problem fixed

Let me say all the story,,,,,,,,,,,,first gone to toyota where they said that they have to change actuator,disk set and trasmission ecu all cost about 2000e+

hahaha,,,then gone to my local mechanic and have changed only the disc set cost 140e+120e work.of course i knew my actuator and the trans ecu was ok.

Then we called the toyota official computer guy to programm the car(toyota corolla 2006 d4d mmt) but he said that he couldnt do it because a faulse codoccured every time he tryed to programme,,so he left saying that i have to change the ecu absolutely.

so i programmed 

 the gearbox by myself(the thing by wiring the obd,,etc,,this process is written in many sites)

ANOTHER problem i had some time ago was that i had a serious problem when the car stsrted changing gears from 1st to 5th or 3rd to 1st and generally the gearbox gone crazy//////.GONE to toyota service and they had the car for a week to fix it.After done nothing at all i took the car home and find out that a fuse was burned and when this happend the gearbox gone crazy///This fuse is a general fuse under the steering weel fusebox 10A. After changing a 100 fuses in 2 monthes period i discoverd that a false

lamp was the cause for the reverse when changing Rgear/////i cried my parking sensor thrown away at first and after find out the reverse lamp was the problem/.

GOOD LUCK TO ALL

 

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I have just posted this update on the issue:

 

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Hi, i have read through the feed from beginning and now know how common the problem is! 

I'm wondering anyone can give me the details of a specialist that deals with these semi automatic cars as no mechanic i know will touch it! 

I'm in Essex UK 

any help appreciated 

Many thanks 

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I think you should report this to DVSA. I did and DVSA were concerned that this happened to me out of the blue with no warning, driving along and the car suddenly stuck in neutral. After keeping on top of things with the DVSA they have recently forced Toyota to do an inspection on my vehicle, which I am now awaiting the results of. I think the more people that report this to the DVSA the more likely they are going have to force Toyota's hand on this issue. For far too long this issue has remained unresolved. 

Even if you did get the expensive repair done at a Toyota garage, who's to say the issue won't re-occur 30k miles down the line?

Please please report this issue to DVSA as it is something they are currently looking into.

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On 9/12/2018 at 10:18 AM, Brookek91 said:

Hi, i have read through the feed from beginning and now know how common the problem is! 

I'm wondering anyone can give me the details of a specialist that deals with these semi automatic cars as no mechanic i know will touch it! 

I'm in Essex UK 

any help appreciated 

Many thanks 

I would say it is a very common problem for the early generations of MMT. You will probably find even more threads from the Aygo.

Few independent garages are will to deal with it due to the extensive work that has to be done. i.e. changing the actuator, maybe clutch as well, and most importantly reprogramme the gearbox ECU. 

 

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You say common for the early generation of MMT. I would just like to add that my vehicle was one of those early generations of MMT that had the Customer Satisfaction Campaign done back in 2009 and yet the problem materialised a mere 30k after. As I didn't own the vehicle back then I cannot say whether or not the MMT issue occurred prior to this work, but what has been proved is even the remedial work done on the vehicle doesn't resolve this known problem.

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On 9/13/2018 at 5:26 PM, Simon1982 said:

I think you should report this to DVSA. I did and DVSA were concerned that this happened to me out of the blue with no warning, driving along and the car suddenly stuck in neutral. After keeping on top of things with the DVSA they have recently forced Toyota to do an inspection on my vehicle, which I am now awaiting the results of. I think the more people that report this to the DVSA the more likely they are going have to force Toyota's hand on this issue. For far too long this issue has remained unresolved. 

Even if you did get the expensive repair done at a Toyota garage, who's to say the issue won't re-occur 30k miles down the line?

Please please report this issue to DVSA as it is something they are currently looking into.

Mailed toyota europe for this.Toyota came up by ToyotaHellas the dealer of my country and they said they have nothing to do because the car was bought used from Italy!!!!AAAAAHHHH yeaaaah!THEN ITS NOT TOYOTA???Hahahaha .What i cannot acxept is...that if you open the Toyota's web site the most you'll read is that they produce SAFE cars bla bla bla,,,and they are very concerned about passenger safety blabla bla...Very funny,,,isntr it?

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you will have same problem if you will remove 90080-87030 relay, which is under the bonnet.

change relay. price 7£ on ebay (5 minute job).

or it can be problem with Throttle Position Sensor 89457-52010  price on ebay 20£.

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Hi I baught a 2012 Auris 1.4 d4d mmt automatic last week and today the car didn't start because I couldn't change gear to N from E after few minutes tried again and it started .Now I am afraid is my car is also affected with the above problems?

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Hi Tellboy, without trying to be nasty at all the Toyota MMT gearbox is more trouble than it's worth.

My advise would be sell the car at the earliest you can. 

Regards, Mike.

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18 hours ago, Mike169 said:

Hi Tellboy, without trying to be nasty at all the Toyota MMT gearbox is more trouble than it's worth.

My advise would be sell the car at the earliest you can. 

Regards, Mike.

Seconded!

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I have had this problem on and off for years. I tried a coupled o ODB readers to see if they could throw some light on errors but the two I used  simply wrecked the ECU and removed all learned settings. I have just changed the battery  and the problem has reappeared in spades so I can't drive very far and it always disengages the box when I stop.

I had two Yaris at one stage and the problem was so bad on the first I scrapped it even though it only had 45K on the clock - mainly because Toyota wanted more than the car was worth to 'repair' it.

The current car is going to go the same way.

The MMT box is a total failure but until you understand the Japanese mentality you cannot imagine why they ever decided to do it rather than cutting a decent deal for proper auto boxes in volume.

Avoid all version of this junk and btw, it is not worth repairing  because you will get the same problems again

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Also, I won' sell the car since if I did it would be very cheap and might be bought by a young person or worse, by a father for his daughter. Imagine what might happen if it suddenly disengaged or refused to engage when you pull out!

Toyota should be ashamed of themselves as should their useless garages

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52 minutes ago, sceh said:

Toyota should be ashamed of themselves as should their useless garages

The Club has no association with Toyota, and we don't know whether anyone from Toyota visits these forums, so comments like this are probably wasted efforts.

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13 hours ago, FROSTYBALLS said:

The Club has no association with Toyota, and we don't know whether anyone from Toyota visits these forums, so comments like this are probably wasted efforts.

No, they aren't and probably don't, but there's nothing untoward in someone having an opinion. Or is that frowned upon now?

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2 minutes ago, mrpj said:

No, they aren't and probably don't, but there's nothing untoward in someone having an opinion. Or is that frowned upon now?

No it isn't, but if the poster was hoping Toyota would take note, it is fruitless.

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