Repair of the Freetronic robotic gearbox control unit. Repair of the robotic gearbox "robot" Toyota Corolla, Auris Wiring diagram mmt box Corolla

MMT gearbox TOYOTA, is not an automatic, as many users and buyers of YARIS, AURIS, COROLLA cars think.

This box is a mechanical, or more precisely, a mechanical robotic gearbox. Its value lies in the fact that the on-board computer itself selects the optimal mode of gear shifting depending on engine speed, which improves the driving performance of the car, the durability of the components and mechanisms of the engine and gearbox, and fuel economy. The car control system adapts to the nature of driving a car given by a person, i.e. has a self-learning function.

MMT provides a smooth ride, convenience in that the driver does not need to be distracted at the moment of shifting gears while the car is moving. Cars equipped with this gearbox are more suitable for women, as evidenced by the positive feedback from the female half. The box is convenient for both beginners and older drivers, it is much simple and easy to drive, does not require additional effort and attention when driving a car and is cheaper to maintain than an automatic transmission.

For drivers who are accustomed to mechanical, it will seem dull and slow. Yes indeed, especially when MMT not yet warmed up, it shifts with noticeable braking, in order to reduce this phenomenon, you should move to the “M” position and shift gears manually, while the box slows down less and behaves faster.

Another property not in favor of the MMT is that as the clutch discs wear out, and let's say, a failure in the training program, which is hardwired into the gearbox control unit, the car starts to twitch. To do this, periodically, if this problem occurs, call in at the dealer's service station and initialize the gearbox, which brings all the data of the training program to the factory settings and the gearbox starts to work like on a new car. By the way, this procedure on warranty machines is done completely free of charge. Well, if you have a warranty, then you have to pay. And the more you drive, the more often.

Another very interesting feature of the box is the “Es” sport mode, in which your car will work more in lower gears, which will entail additional fuel consumption and wear of engine and gearbox components and mechanisms. Therefore, the sport mode should only be used in emergency situations, such as when overtaking.

Also, if you need to pick up speed sharply, then you should do this; first release the gas pedal, and then sharply press the pedal to the floor, and you will feel how the car will abruptly switch to a lower gear, thereby picking up speed sharply. But at the same time, you will notice all the same failure in driving your car.

In general, we can say that you need to get used to everything. And I'm sure that after driving a car with MMT gearbox, with all the existing disadvantages, you are unlikely to want to transfer to mechanics.

On cars of the brand Toyota Corolla, Toyota Auris, Toyota Yaris, Toyota Aygo, Toyota Corolla Verso 2005-2009 with a Fretronic robotic gearbox, a malfunction of the MMT control unit is quite common.

The cost of repairing the electronic unit of the Freetronic robotic gearbox removed from the car is 7,000 rubles (removing and installing the unit from a Toyota Auris, Corolla, Corolla Verso car - 1,000 rubles, for a Toyota Yaris car - 3,000 rubles).

We offer you a new service for replacing the MMT unit within an hour! We replace your faulty unit with our remanufactured one, after the replacement we initialize (adapt) the MMT box. The cost of this procedure is 11,000 rubles (Toyota Corolla, Corolla Verso, Auris) and 13,000 rubles for Toyota Yaris. The warranty for the replaced unit is 6 months.

ATTENTION NEW SERVICE - replacement of the clutch with subsequent adaptation of the gearbox - 8,500 rubles (the cost of only work, without spare parts, the car is accepted by appointment for 1-2 working days! Ordering spare parts at the Freetronic gearbox is also possible!).

Replacing the clutch actuator with subsequent adaptation - 2,500 rubles (by appointment!).

Our technical center can provide you with any spare parts for your Toyota Corolla, Yaris, Auris and Corolla Verso, call us!

The Freetronic robotic manual transmission (sometimes referred to as Multimode or simply MMT) was developed from the traditional manual transmission by adding actuators shifted by electric motors. By adding an electronic control system, both automatic and manual gear shifting became possible.

The photo shows the interior of a Toyota Corolla equipped with an MMT gearbox.

Information about the position of the actuators is read by proximity sensors and sent to the control unit (TCM) of the robotic gearbox. Three electric motors take part in the gear shifting process: one is responsible for the operation of the clutch (squeeze), the other two are responsible for shifting gears along the X and Y axes.

The only plus compared to a conventional automatic transmission is the ability to manually shift gears using the paddles on the steering wheel and slightly lower (~ 0.5 liters) fuel consumption. At the moment, Toyota does not install this transmission, but it continues to work in a slightly modified form on Peugeot / Citroen cars.

The defect on Toyota cars (Toyota) with an MMT robotic transmission manifests itself in the loss of assistance when starting off, when gas is added, the car twitches (manifested when starting to move and when starting forward and backward). With computer diagnostics, this error can be detected (sometimes there are no diagnostic errors at all!):

P0810- general clutch position error

P0900- error in the clutch actuator circuit

The disease is present on cars, the MMT transmission control unit numbers end in "0" or "1" (cars before 2008, by the end of 2008 Toyota began to install new units with the number "2" at the end, where the problem was fixed once and for all ). In 2009, Toyota decided to abandon this transmission in favor of a conventional "automatic".

Numbers of control units to be repaired (if there is no number from your unit among the numbers, it does not mean that it cannot be repaired. Call!) :

89530-12250 25 Toyota Auris

89530-12290 (Aisin 324811-11900) 29 Toyota Corolla

89530-12291 29 Toyota Corolla

89530-12220 (Aisin 324811-10770) B Toyota Corolla (2003 - 2006 release)

89530-64031 (Aisin 324811-12301) 31 Toyota Corolla Verso

89530-52140 (Aisin 324811-11640) 40 Toyota Yaris

89530-52090 (Aisin 324811-10220) 90 Toyota Yaris

To diagnose the above-described malfunction of a Toyota Corolla, Toyota Auris, Toyota Yaris, Toyota Aygo, Toyota Corolla Verso 2005-2009, you can drive up to our car service. The equipment used by us in the diagnosis is dealer and allows you to most fully and accurately identify the malfunction of the car.

After repairing your unit, it is imperative to initialize (adapt) the MMT control unit. You can do it with us. The cost of initialization after repair is 1500 rubles (in terms of time, the procedure usually takes 10-15 minutes).

We also offer you spare parts for sale for your Toyota car (Toyota) under the order from 2 to 7 days:

Clutch actuator assembly (new original)

Clutch for Toyota vehicles with MMT robotic transmission (Corolla, Auris, Yaris, Corolla Verso, Aygo)

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Jan 2007

ROBOT GEARBOX

By the second half of the 90s, Toyota was working with two traditional transmissions - automatic and manual transmissions, and it worked, I must say, successfully. But once its marketers noticed that automated (or robotic) manual gearboxes are gaining popularity in Europe - for all their incomprehensible love for mechanics, the inhabitants of Western Europe turned out to be no stranger to at least minimal comfort. Toyota just needed not to deviate from their own traditions - to wait a bit and then borrow technologies already developed by others. But alas, here they decided to manage on their own and learn from their mistakes...

The first experience was the Toyota FreeTronic system, impressive in its unreliability, a manual gearbox with automatic clutch. TFT can squeeze the clutch, but otherwise ... TFT electronics live their own lives and sprinkle false fault codes. The spool valve, pressure sensor and accumulator quickly end their days. In turn, the finished accumulator makes the electric pump constantly work, which does not tolerate such treatment for very long. The hydraulic drive fluid simply flows out through completely unreliable seals. Of course, this whole set of failed nodes periodically burns the clutch disc (surprisingly, this does not happen as often as it could). In addition to everything, TFT spare parts cost more than impressive money, and for a full-fledged repair, some locksmiths are not enough - you also need a person with a scanner, preferably a branded one. Although the easiest way to solve the problem is by installing a conventional mechanical box.

As a result, the system turned out to be so rotten that even Europeans who were not bypassed by the service network began to shy away from it. And the dynamics of sales made Toyota very quickly forget about FreeTronic technology. But then no one knew that Japanese engineers had prepared a second bomb for lovers of comfortable driving - Multi-Mode Transmission ...

Their task was clear - to make a "like an automatic" gearbox at the price of a mechanical one, and other divisions of the company will try to instill in customers what a breakthrough product they got - an alloy of simplicity and efficiency of mechanics with the comfort of an automatic machine. The experience of TFT has shown that it is better to do without hydraulic drives, the more pure electrics are cheaper and more perfect ... Five sensors, three electric motors - and now the unit is ready, not only independently squeezing the clutch, but also distorting gears.

In just three years in Europe (local car owners do not consider it shameful to share problems and deceived expectations), this box has managed to earn the definition "Dreadful gearbox"- from unfortunate drivers, servicemen and even tow trucks, through which Toyotas with M-MT often move.

In the absence of hydraulics, the number of possible malfunctions here has decreased. Transmission control units are most regularly replaced, a little less often - burnt clutch discs and power drives. But the main problem lies not even in the reliability of the parts, but in the fact that Toyota simply could not establish adequate operation of the M-MT and make it durable.

The most innocuous drawback is the impressive slowness of the box when switching. Exhausting jerks and traction dips are inevitable (M-MT is not able to switch, not only without breaking the power flow, but even without releasing gas, therefore it is obliged to choke the motor). When coasting, the box likes to inappropriately tuck a downshift, while going uphill, the “robot” gets confused in two adjacent gears and constantly switches up and down. The car rolls back on the slightest hill, which is generally unacceptable for a box that claims to be "as if automatic".

Ideologically, the M-MT was created for economical city driving in traffic jams, but it turned out that there was nothing to do in traffic jams on such a machine. The clutch overheats very quickly, starts to stink, then smokes and finally burns out - it can’t stand the “crawling” cork movement in principle, especially if you need to start off or crawl uphill. When driving with frequent stops, the box periodically forgets to switch, so starting from at least second gear only aggravates the fate of the clutch. Another serious problem is knocking out the gear and blocking the box in neutral, which occurs not only during stops, but even on the go - this is how a kind of protective M-MT algorithm is implemented. Kindly stop, cool the box a little, restart the engine - and, perhaps, the car will go further. They mostly worry about this: when there is no certainty that it will be possible to complete overtaking or simply turn at an intersection in front of oncoming traffic, it is not very pleasant to drive.

"There are big problems with the MMT gearbox. Last year, when the car was not yet a year old, the car switched to neutral while driving. Fortunately, no one was on the road behind us ... We were told that this is a known manufacturer's problem with The clutch and the new modified parts need to be installed.The clutch and the control unit were replaced.A few weeks later the same problem recurred, and the parts were changed again.A few more weeks passed - and now the problem happened right on the freeway.There were children in the car.The car is back in service "Now they say there is a problem with the ECU software... I hate this car. I'm afraid of it and don't want to drive again. I don't want to risk my life and the lives of my three children."

"The car is good, but MMT is one big problem. It has already broken down twice (jamming at N). I took the car to the dealer, they changed the control unit, but to no avail. The car ran 25 t.km and the problems started two months ago"

"We are disappointed. On a run of 5k km, the MMT box jumps between 3-4-5 gears ... Say that they replaced the ECU, but a week later the problems recurred. Now we were told that the ECU was replaced with a modified one, which was definitely checked in in all conditions and works perfectly. On the way home, the gearbox again rushes between 4 and 5 gears. "

“After three months on a new car, she already got me. Why? I have been driving cars with automatics for twenty years and I was assured that the MMT works smoothly like an automatic and economically like a mechanic. jerks in automatic or sport mode.The problem is shifting too long - for example, when you slowly roll up to an intersection, the box decides that you want to shift from 2 to 1 and starts shifting. During this time, you already start to accelerate - as a result you get two powerful jerks - when downshifting and immediately at the next upshift. Jerks and the fact that the box wants to completely unexpectedly change gears - I did not expect. All my passengers agree that the car is clearly sick. They checked it twice at Toyota dealers - they say it works fine. Talking with technicians, I heard different stories..."

"I have a Verso with MMT and a lot of problems with it. I have driven six different Toyotas so far and I can confidently say that there has never been such a duet of slowness and unreliability. The transmission has broken more than 5 times to date. New ECU installed, but problems continue, periodically the car throws gears into neutral and does not go ... "

Against this background, private advice from Toyota officials on driving with M-MT sounds simply mocking:

- If shifting becomes inefficient, then move on even gas for a while, allowing the transmission to rest.
- Help shifting gears - if you release the gas just before the moment of shifting, then it will happen more smoothly.
- Do not press the gas pedal too hard to prevent the protection from tripping and resetting to neutral.
- To prevent cyclic shifting during long uphill driving (eg 3-2-3-2-...), switch to manual mode and forcibly lock into a lower gear.
- To reduce shift jolts, accelerate smoothly without depressing the accelerator pedal more than half way.
- It is impossible to move at a very low speed, especially on a hill, otherwise the clutch will overheat with constant slipping. In this case, stop and cool it down.
- Try to drive in modes where the clutch is fully engaged.
- Try to avoid driving in dense city traffic jams.
- The M-MT system is a new word in Toyota technology and requires some adaptation. Try to rebuild your driving skills and driving style.

All this, of course, is nonsense - for this, automatic and automated boxes are bought so that when driving, you don’t have to think about them at all. It is for slow driving around the city, for easy starting uphill... And the car owner does not have to adjust to the next "brilliant" invention of Japanese engineers every time. You cannot make a workable unit yourself - so do not shift these problems to buyers.

Or maybe it’s impossible in principle to build a normal robotic box for mass machines? No, it’s very possible - take at least VAG transmissions ... But, unfortunately, there is a huge distance between their advanced DSG with two multi-plate “wet” clutches and the poor ersatz automatic offered by Toyota.

It is worth noting that primitive "robots" in Europe were introduced more as an alternative to mechanics than as a replacement for automatic machines. Therefore, thinking about the prospects, automakers offer a choice of all three options - "cheap" basic mechanics, a slightly more expensive "robot" and an expensive classic automatic. However, Toyota went the other way, completing all the younger models of the European market only with mechanics and M-MT - Yaris, Corolla Verso, and now a new generation of Euro-Corolla. Probably, fans of ordinary mechanical boxes still ride on these cars, but in our metropolis, where an automatic machine is simply necessary for daily driving, you will have to forget about the existence of such models - it seems that the Corolla story is over. Those who wish to continue to sponsor experiments on themselves can stay with Toyota, but what about the rest? Fortunately, there are enough other normal cars with normal transmissions in the world.

Here's to Toyota. Basically, Toyota has everything.

General The C50A (Multimode) gearbox is based on the conventional C50 manual gearbox.
To control the gearbox, electric drives for disengaging the clutch and selecting / shifting gears are installed on the gearbox housing. Electric drives, according to the signals of the sensors, are controlled by the control unit.
The control system can operate in two modes: automatic shift mode (E) and manual shift mode (M).
The shift lever is not mechanically connected to the gearbox; the position of the lever is determined using sensors, the signal from which is fed to the control unit.
To ensure safety, there is a gear lever lock system. The lever is locked in the following cases:
- if the ignition is off;
- if the lever is in the "N" position, the engine is running, the brake pedal is released.
The engine can only be started with the brake pedal depressed and the gear lever in the "N" position.
When the ignition is turned off, the transmission control system locks the gear lever in the set position and engages the clutch. However, if the ignition is turned off while the gear is being shifted, the buzzer will sound and the gear indicator will flash to warn that the vehicle cannot be parked with the gear engaged.

Initialization of the transmission control system (C50A (Multimode))

After replacing any element indicated in the table “Initialization of the gearbox control system”, it is necessary to first delete the data on the old element from the memory of the control unit and then configure the system for the new element.
[I]Note: Initialize only for those elements that have been replaced.

Initialization of the transmission control system

1. New elements:
- Gearbox assembly.
- Elements of the gearbox, the replacement of which required the disassembly of the gearbox.
- Electronic transmission control unit
Necessary operations:


3. Calibration

2. New elements
- Electric drive for selecting and shifting gears.
- Gearshift sensor.
- Gear selector sensor.
Necessary operations:
1. Initialization of the transmission control system.
2. Setting up the control system.
3. Calibration

3. New elements
- Electric clutch release.
- Clutch stroke sensor.
- Clutch disc and clutch cover.
- Release bearing.
- Clutch release fork.
- Flywheel.
- Crankshaft
Necessary operations:
1. Initialization of the transmission control system.
2. Setting up the control system.

Initialization.

1.stop the car.
2. Move the gear lever to the "N" position.
3.turn off the ignition.
4. connect terminals "4" (CG) and "13" (TC).

5. after connecting the leads, wait 10 s.
6.turn on the ignition.
7. Within 3 seconds, press the brake pedal at least 7 times.
Note: the buzzer will sound twice at 0.25 second intervals.
8.depress the brake pedal.
9. Keeping the brake pedal depressed, move the gearshift lever in the sequence indicated in the table "Initialization of the control system".

Table. Initialization of the control system.

10.Release the brake pedal.
11. depress the brake pedal.
12. The buzzer will sound several times (depending on the element being initialized) with an interval of 0.5 s (the interval between cycles is 0.25 s).
Number of beeps:
control unit initialization -2;
initialization of clutch elements - 3;
initialization of gearbox elements - 4;

Note: if the buzzer does not emit beeps or the interval between beeps is 1 s, then turn off the ignition, wait 15s and repeat the initialization steps from the beginning.
13. depress the brake pedal at least three times within 2 seconds.
Note: The buzzer will sound twice at 0.25 second intervals.
14. switch off the ignition and wait 10 s.
15. remove the jumper between terminals "4" and "13".
16.after initialization, it is necessary to configure the system.
Note: if the system setup has not been completed, then it is necessary to carry out the initialization procedure from the beginning.
a) stop the car, set the gear lever to the "N" position and turn off the ignition.
b) turn on the ignition.
c) wait at least 40 s.
d) turn off the ignition.
e) wait at least 15s.
e) turn on the ignition.
g) press the brake pedal and start the engine.
Note: when the engine is started, the "N" indicator will flash.
h) wait at least 10 s.
i) make sure that the indicator "N" is constantly on.

Calibration

When moving in the "M" mode, shift gears up and down at the speeds indicated in the table. Make sure the gear shifts smoothly.
If, after calibration, gear shifting occurs with jerks, then repeat the calibration.

Note: hold for at least 2 s in each gear.

Owners of used Toyota Corolla often encounter the problem of the correct and uninterrupted operation of a robotic gearbox. The Japanese have long admitted their mistakes in creating MMT for their cars. The occurrence of any breakdowns with the robot entails unscheduled repairs and initialization of all parameters. In order for the initialization of the Toyota Corolla robot to be successful, you need to perform a series of “procedures” that will help you set up the entire transmission system with high quality.

The robot is one of the many "projects" of the leader of the Japanese car industry, which simplifies the entire process of driving a car. The system is designed so that the driver does not think about the "mechanical" gear shift. Thus, the robot controls the transmission much better than the well-known machine.

Robotic gearbox Toyota Corolla

MMT included an ECU control unit and sensors that give signals when the car is moving. The transmission system itself has remained virtually unchanged, it contains a clutch and a manual gearbox, which in turn is driven by a robotic drive - an actuator. The control mechanism completely links the entire system, thereby making it automatic or semi-automatic, and also allows for manual operation.

A characteristic advantage in the MMT Toyota Corolla is driving comfort, of course, the automatic transmission is smoother and more familiar to everyone, but the robot has a number of abilities that are beyond the power of the “machine”. For example, in MMT, fuel consumption remains at the level of "mechanics", and reliability in operation and the cost of maintenance are much cheaper than "automatic". But whatever it was, any box has its pros and cons.

Problems with the robot Toyota Corolla

The Japanese debuted their first car with a multi-modal transmission at the end of 2006. Sales of cars with a robot did not last long on the market, as Toyota admitted its shortcomings and mistakes in creating such an interesting and attractive gearbox. Therefore, the Japanese were forced to discontinue production of this type of gearbox and introduce insurance for purchased cars for a short time. The owners of the Toyota Corolla robot faced such a number of problems:

• Failures in the control unit system, which led to frequent problems and unscheduled initialization procedures, sometimes every 10 thousand kilometers
• If not functioning properly, the box contributed to overheating of the clutch disc and premature wear. There were cases that the clutch required replacement already at 50-60 thousand kilometers.
• Interruptions in switching from one gear to another. Most often this happened in long traffic jams. MMT “thinks” for a long time, such a reaction leads to a slow movement of the car or contributes to jerks.
• Problems associated with the computer, due to which the above listed failures and malfunctions in the system appeared. I had to do a complete update of this control unit.

To date, "insurance" from Toyota for robotic gearboxes still exists. Specialized car services are ready to carry out a complete replacement of all elements of the MMT system. You can use the warranty card, but no one knows how long the “free” service will last.

What is the initialization of the robot gearbox on a Toyota Corolla car?

Initialization, in other words, resetting or setting parameters in the ECU. Most often, initialization on Toyota Corolla 2008 is carried out when replacing any elements of a robotic transmission:

• Replacing a complete set of MMT or a partial update of the clutch or gearbox elements (transmission is being initialized).
• Replacement of the electric unit and electric drive, as well as sensors (the ECU unit is being initialized).

Adjustments or calibrations are performed on unknown errors or failures.

When should you not initialize a Toyota Corolla robot?

More on the topic:

Corolla initialization should not be carried out, without any reason or complaints. The ECU does not like frequent updates, so an incorrect failure or calibration can lead to negative consequences. After the initialization, there may be short-term positive effects, but this is not for long. Undesirable parameter setting leads to increased wear of all MMT elements.

There are a number of erroneous opinions that seem to have a positive effect on the operation of the MMT during initialization:

• It is not necessary to carry out a reset if the position of the clutch supply drive rail is not correct.
• With delays in gear shifting, as well as jerks at low speeds.
• After the ECU settings, without intervention in the system, the car will not move better.

All procedures related to the initialization of the box or block must be carried out with the recommendation of professionals or the obvious occurrence of reasons for this.

The procedure for collecting or setting up the transmission system should be carried out by specialists, but if you decide to do it yourself, then follow the instructions step by step:

1. We put our Corolla on the parking brake.
2. We make a jumper in the DLC3 block of contacts CG and TC (we close the contacts with a paper clip at number 4 and 13).
3. We turn on the ignition and press the brake at least seven times (two short beeps will sound), this will mean that the car has started diagnostics.
4. Press the brake pedal and perform the following gear changes:

When setting up the electrical control unit: N - E - V then "minus" - M - "minus" - M - E - N

When initializing the clutch: N - E - M - "plus" - M - "minus" - M - "plus" - M - "minus" - E - N

With MMT settings: N - E - M - "minus" - M - "minus" - M - "plus" - M - "plus" - E - N

1. We release the brake and press it again, we expect a series of signals (the element we have selected is being configured).
2. With the correct process for initializing the Toyota Corolla robot and successfully completing it, you will hear:

Two beeps - ECU setting completed successfully.

Three beeps - Clutch initialization completed without errors.

Four beeps - the transmission is configured without errors.

1. Turn off the ignition and disconnect the contacts TC and CG.
2. If continuous beeps occur during setup or after it is completed, it will indicate that it was not performed correctly or with errors. To correct this problem and reboot the system, remove the key from the ignition and wait ten to fifteen seconds. Then start initializing Toyota Corolla again.

ECU initialization

ECU Toyota Corolla