Ok just got in after another unsuccessful attempt at learning the gb parameters. All other units seem to be working but the easytronic transmission will not program.
I jacked the car up and set vauxcomm Woking with learn gb parameters as this is the only real error code now being shown on the car- the car was jacked up and in neutral both front wheels turn ok ie. not stuck in gear.
I run the gearbox learning and it seems to start ok.. it steps through to “programming base position enabling programming mode #02 ok ! “ then it fails with “timed out 0x17”

Anyone any ideas ?

 

No idea on this one. Ive never had any issues in the past. Does your firmware and software match

 

Thatnks marks152, yea I checked few and saw versions and all is ok on vauxcom now. this problem is really killing me it strikes me that easytronic is not supported well by Bosc /Vauxhall.
Points I need to share
The car is communicating well throughout but the touch point fails....am I wasting my time with learning gb parameters of the touch point fails? To me you should still be able to learn gb. Even if touch point is not done because it just involves calibration of the select and shift motors.
Secondly vauxcom is not seeing a vin on the tcu? I’m sure it used to although it was not a vin but a serial number. If this is missing am I wasting my time ?

 

Maybe the easytronic module is defective.. Maybe its seeing something out of spec such as a worn clutch.

 

Yes agree marks 152, that was my thinking. I guess the key question is if the clutch is worn or the bleed is poor then would that really stop the gb learning. To my mind as the clutch manual release screw does not twist during gb learn procedure before the timeout then the clutch is not used ? But who knows? When running touch point and bleed process the clutch screw moves fine and the distance of the plate changes fine albeit showing a worn clutch 18mm

Does any body have experience of this. The only fault code on the entire car is that the tcu is missing it’s parameters there is no reference to the clutch.

Cheers for now

 

Hi guys, so a little update on the car…

We sent the TCU off to ECU-testing (www.ecutesting.com). They confirmed that there was indeed an issue with the software on the unit. They sent back the unit, and we refitted and bled the clutch. Great – it fixed the P1735. The car now displays “N” on the dashboard.

Of course, this being an Easytronic, we aren’t off the hook yet……

Although the car states that it is in “N”, the car will not turn over. We had the code P1728 (Shift Motor Mechanic) present, however after clearing this code it only returns occasional upon switching the ignition on. Having continuity checked the wiring loom from the TCU to the shift/select motor actuator and finding this to be fine, we then sent ECU-testing the shift/select motor to be tested. We expected there to be worn brushes or a bad feedback to the TCU causing the fault. However, ECU-testing confirmed no issues with the shift/select motor actuator. They have suggested that perhaps an external problem (ie: external to the Easytronic system) may be the problem, such as a mechanical problem with the gearbox. As the car has not moved in three years, and was running fine mechanically before it went into “hibernation”, I find this hard to believe. Perhaps the gearbox is stuck?

Also worth mentioning is that we have successfully bump started the car. The engine runs, but it still doesn’t select gears, and won’t rev past about 1,300rpm.

Does anyone have any ideas as to how to remedy this issue?

 

What codes do you have in the engine control unit, bcm, immobiliser, easy tronic unit.

 

Hi my name Is Eddie. I did a couple of articles back in 2015 relating to Easytronic cars. One was called easytronic problem to a fix.

The reason for me crashing this thread is that I have the same problem with a 2001 corsa c 1.2 easytronic. It will not learn the gears. I have had all the same idea's as you have tried, and a couple others which I will tell you about.

The op-com when I go in to values shows the shift motor as -10.68 mm actual where 0.00 mm is requested. The select motor is good. 0.00 mm 0.00 mm. This is with a replacement actuator as the original had one blown motor. So I have now tried 3 actuators, known to be working, and they all end up the same, about -10.68 mm which is a big difference. Then I decided to possible destroy an actuator by removing the motors. Firstly I put the motor in, them turned on the key so it would do the usual self test, went to op-com values, yes -10.68 mm, then without switching anything off, removed the motor and moved it by hand to register 0.08 mm as close as I could get it to 0.00 mm. Then I tried to learn the gears, exactly the same as before. It ended timed out and -10.68 mm. So my thinking is now, that either there is something physical in the gearbox which is doing this, or what is more likely that the clutch actuator needs new software, or a new board. Tech 2 could flash new software update, but op-com can not. I do not have access to Tech 2 so I am thinking of removing my clutch actuator and having that tested. Another option would be to get an auto electrician with tech 2 to help, but my previous experience with the "experts" (previous Astra article I did) makes me stop and think if i might just make the problem worse. I think i will chew on this before I remove the clutch actuator, as this seems to be working just fine, when I test the actual clutch position etc. I have used easytronics, ac tronic, and ecu testing before and they have all done good jobs, so I am leaning to having the actuator tested and re-flashed with an updates, as it seems to be running on original software, never updated. When I crack this problem, I will post the solution. Regards Eddie

 

Hi marks152, no, no other codes stored in any of the other modules.

Hi Eddie, thanks for joining. We know who you are. Your post on Easytronic: problem to a fix was by far and away the most useful post we have come across.

One thing that ECU-testing informed us after fixing my TCU was that my particular model of Easytronic Corsa is unable to be reprogrammed – with Tech2 or opcom. I would send you a picture of the info sheet they sent, but I’m not paying for a fancy account lol! So I’ll just type it out instead:



“Vauxhall Easytronic Clutch Actuator

The fault with this clutch actuator has been caused by an attempt to perform the following ‘F4: Additional Function’ then ‘F1: Learn Gearbox Parameters’ using ‘Tech2’ diagnostic equipment.

There are additional faults on the vehicle that prevented ‘F1: Learn Gearbox Parameters’ from being effective and subsequently damaged the internal ECU Software/Processor. (This is a design flaw with the logic of this particular unit and not the fault of the Vauxhall technician that attempted to perform it).

The additional faults on this car MUST be rectified first before the ‘F-light’ will extinguish from the instrument panel to allow the engine start function.

The clutch actuator also controls the hydraulic clutch operation, upon installation the clutch hydraulics will need to be bled diagnostically via ‘Tech2’ diagnostic equipment or using a conventional pressure bleed system. If this is not performed correctly the gearbox will not depress the clutch correctly.

!!WARNING!!
If using ‘Tech2’ diagnostic equipment – DO NOT attempt to select the following option: ‘F1: Learn Gearbox Parameters’.

If you select this option then this clutch actuator will have the following permanent fault code stored: ‘P1735 – Gearbox Parameters Not Learned’ the F-light will display on the instrument panel and the engine will fail to start.

In the event that these instructions are ignored and the above does occur, then the clutch actuator will need to be sent back to us to be reconfigured – this would be charged for.”



My dad spoke to them on the phone and asked why our Easytronic gearbox could not be programmed. I think he said that ECU-testing said that it was because the Easytronic system self-learnt or was pre-programmed or something, but I will have to confirm that with him.

Hope this helps.

 

So it seems that they say that the software on some of the clutch actuators can not be updated. Seems weird to me. How old is your clutch Actuator? So they are assuming there are other faults on the car, but you said you had gone through every other system, maybe do that again.

Has any one been near your car with tech 2?

One question for ecu-testing would be, "are they saying skip the learn gearbox parameters"? treat it like a plug and play? if so what things do they say you have to do, obviously bleed the clutch, and what else? their answer there would be a great help. Also if plug and play, why the fault code gearbox parameters not learnt???

As far as a problem with the gearbox itself, my car has not been off the road for any length of time, it worked fine right up until the dreaded "F" appeared, its on an axle stand, and is not stuck in any way, the selector tabs are 3 zero 3 and the reverse rod grove/inset is on the top of the rod, and as far over to the right as it can go, when seen from in front of the car.

 

One question for ecu-testing would be, "are they saying skip the learn gearbox parameters"? treat it like a plug and play? if so what things do they say you have to do, obviously bleed the clutch, and what else? their answer there would be a great help. Also if plug and play, why the fault code gearbox parameters not learnt???

I think they are indeed saying to treat it as a plug and play. I've just spoken to my dad, who spoke to ECU-testing on the phone regarding the issues of reprograming. From what dad can discern, ECU-testing were stating that it is to do with the firmware version on these TCU units. Basically, Vauxhall made some of the Easytronic TCU units (I presume the older ones - but again this is just conjecture) so that the firmware version cannot be updated. Not sure why Vauxhall would do this.

Yes you'd bleed the clutch, and probably want to also learn the touch point adaption to ensure that it releases the clutch when it needs to/doesn't slip. Mine certainly needed to clutch touch point adaption doing - it was miles off to start with. Took an age to release when accelerating from a stand still, but it is now massively improved.

 

Hi Jimmycheesebob I just had a brainwave. What if your clutch actuator and the one on my car are from the same batch? The batch that ECU-testing say you must not try a program it to learn the gear positions? It would mean that we both shot ourselves in the foot, so to speak, by using op-com to program the units. What do you think?

To try and prove this theory I list here the numbers that my op-com found when talking to the clutch actuator. Part number 09126186 Production date 20010702 Alpha code AA . How do your unit's numbers compare? May I ask you to list your numbers on here please? If they are the same or similar, it would lean me towards sending my clutch actuator away for work to ECU-testing.

Also just to recap, the only fault I have showing on the transmission is P1735-(0) Gearbox parameters not learned-Present. The only other code on the entire car is in the body control module, fault B3078-(0) Power sounder malfunction-present. Which 99 out of 100 means the rechargeable back up batteries on the alarm siren need replacing. I know this fault can make the alarm system try and re-set over and over again, so I must deal with this, but has anyone experience in it affecting the Easytronic system? My own gut feeling is no, as when you are using or programming the Easytronic's the ignition key is always in the "on" position, over-riding the alarm, but I will research this further. Any one with any thoughts on this, please let us know, thanks.

Well that is about all I have to say for the moment, you all take care. Eddie

 

Sorry about the slow reply folks. Busy week at work followed by a busy weekend! Only just sat down at the computer the catch up on the forum.

Hi Jimmycheesebob I just had a brainwave. What if your clutch actuator and the one on my car are from the same batch? The batch that ECU-testing say you must not try a program it to learn the gear positions? It would mean that we both shot ourselves in the foot, so to speak, by using op-com to program the units. What do you think?

I think this is exactly what has happened Eddie. I mean, as ECU-testing says, we aren't to blame - there is no literature anywhere on the internet (at least not that I am aware of) that states that certain Easytronic clutch actuators cannot be reprogramed. In my case, I believe there were other problems with my clutch actuator before we tried to reprogram it anyway, so I think ultimately I was always going to have to send it off to get it mended. I will get you the part number, production date and alpha code of my easytronic unit as soon as I can Eddie. I'm away from home at the moment, but I'll get the old man to plug the opcom in and find out for you as soon as he is free to do so.

I have also asked for the reports from ECU-testing on the clutch actuator and the shift/select motors and actuator. They say they'll email me them as soon as possible. This might hopefully shed a little more light on what in particular was wrong with my clutch actuator.



Anyway, I have more news about my car in the meantime. On Wednesday ECU-Testing returned my shift/select motor and actuator (including the wiring loom for it which I also sent them to be tested). As I posted previously (post #34), they told us that there were no issues with the unit on the test bed. So, dad refitted the unit that day, and was obviously expecting us to be in the same position as we were previously - a "N" on the dash, but not turning over. However, upon turning the key the car turned over and started! What's more is it selected gears..... and it moved! And this has been the case for the past few days now. We've run it several times just a few miles, and every time it has started first time, and it has shifted gears without issue. Dad even did the clutch point adaption as it was way off, and that successfully ran without issue. Honestly, I have no idea why it has suddenly started working, but needless to say we are very pleased. As I say hopefully the reports from ECU-testing might shed some light on this.

Dad did mention that when he removed the shift/select motor actuator from the car before sending it to the people at ECU-testing, the gearing on the shift motor felt "stiff". Perhaps being on the ECU-testing test bed freed the motors up slightly. This is just conjecture though.

 

I wonder if it's possible to use a used module. Not sure if the easytronic module has the security code in it. I dont seem to recall it having it on the astra h. It would have the vin stored but this shouldn't cause much of a issue.

 

Hi marks152 I have done this before, however it is not completely straightforward. You need your own cars security number + the security number stored in the second hand unit you want to install. Tech2 (not op-com) can then be used to delete the security and vin number's stored in this unit, making it as if it has just left the factory ready for installation. Once this has happened op-com can be used to code the unit to the car. Use the car's own security number, that way there is no conflict with any of the other modules.

Some companies sell these used units already de-coded. Also if the code of the unit you want to fit is not available, there is a program one can download, which reads the eprom files. I have a distant memory of a video showing the procedure. Regards Eddie

 

Surely if you can find where the codes stored it might be possible to read the eeprom and change the details or set it to blank.

 

yes it can be done if one downloads the program I spoke of. The problem I see is breakers want as much for second hand one as it costs to have the original repaired, but would be my first choice if the original one can not be repaired.

 

Hi Marks152 I have been thinking more on what you said about using an old clutch actuator, and my previous answer may have been wrong, and if it is I will delete it so as not to send readers in the wrong direction. I think you may be right, that the clutch actuator only has the vin number, and doesn't need the original security number., unlike say an engine ecu. So I am going to put this to the test, as I have a couple of clutch actuators here that I can try. I will report what happens, and if it works, that may will give Jimmycheesebob his solution. I will remit in the next few days, as I have a lot on at the moment. Eddie

 

Although finding out "what's going on?" would be really helpful, just popping in a :yipee: on the news that your car is moving, Jimmy. Progress always good to hear.

 

That's great news that the car is working. It would be very useful if you were able to set out exactly what your dad did, when the unit was returned, (presumably re-set again by ECU-testing). Obviously NO GEAR LEARNING, but bled the clutch, but which way? Using op-com or just using a pressure system?, and then what, clutch bite point? then drive it?

If you list this information, then it's here for everyone to read in the future, which may stop others making similar mistakes.

 

When i did the astra h a few weeks ago i bled it using a easibleed and opcom. Opcom tells you to pressurise the system to 2 bar and then it gives you further instructions.

 

Thank you for the kind words guys!

To answer your question Eddie, we first sent of the TCU to ECU-testing. This came back needing repairs, so they fixed it for us and sent it back to us. Upon receiving the TCU my dad refitted it and bled the clutch. He did this using a bleed kit and opcom. This cured the "F" on the dash, replacing it with a flashing "N". We could not get the car to go solid "N" and the car would not turn over. After moving the gearstick around a bit it would usually display an "F" again. Reading the codes with opcom we would get P1728 - shift motor mechanic. We then sent the shift/select actuator and wiring loom for this to ECU-testing. They found no faults with the unit so I assume they did no work (ie: refurbishment of the brushes etc) to the unit itself. Upon receiving the shift/select motor actuator and wiring loom back from ECU-testing my dad refitting the unit and that's when he turned the key just to see what would happen, obviously expecting no change. And that's when it fired up and worked. Once we had it working we did the clutch touch point adaption. It's all very strange. As I say, my guess is that perhaps they freed the shift motor when testing it, but as I say, it's just a guess. Maybe when I receive the in-depth reports from ECU-testing this will reveal more about precisely what they did to repair the TCU and the tests they did on the shift/select motors.


In the meantime I have the part number, production date and alpha number of my Easytronic unit as you requested Eddie. The part number is: 55352634. Production date is: 20101021. Alpha code is: AN.

Hope this helps.

Yeaaaaaaaa ;-). She is driving really well and the clutch is now much better than four years ago....now to get it through the mot.

 

Hi all just an update as to what is happening to the Corsa C. I sent the clutch actuator off to ECU testing. They found the same fault with it as Jimmycheesebobs. They repaired it and also sent instructions not to try and re-learn the gear positions. So on it went, bled the clutch, checked the clutch movement with op-com, all is well, then tried to get it to set bite on the clutch. It wasn't having that F started flashing, so off came the gear shift actuator, sent that off to BBA reman, who have said that the unit is working fine, with no faults. so I am awaiting the return of that. It will be interesting to see if the same thing happens when I try, i.e. will it start? If it does, it means these older clutch actuators which you can not re-program need the gear shift actuator to also be accurately set/positioned before they will work. I will let you all know what happens as soon as I can. Eddie

 

HI all the shift actuator cam back, and I fitted it. Sorry to say still no dice. N flashing in dash, no engine start, and when I try to get it to learn bite point, all I get is sequence error. Checking the values with op-com still the same original problem. SELECT POSITION request 0.18 mm actual 0.18 mm ======== SHIFT POSITION request 0.00 mm actual -11.12 mm.

So this is now starting to become a marathon. The only things left that I can think of, are either the cable between the gear change motors and the clutch actuator, although I checked these for continuity in the beginning, or a physical problem in the gearbox. However the selectors in the gearbox all seem to move by hand OK, as does the reverse slide correctly. I will also have a good look at the cable plug ends to see if any pins have been bent out of position. ANY OTHER suggestions for me to check GREATLY APPRECIATED. Eddie

 

Id have converted it to a manual by now. Im out of ideas. Its not a system ive had much to do with to be honest.

 

I am also going to a hell of time with one which the clutch disc worn out and I removed the gearbox and had the disc taken out, took it to be relin and fix back, baaam problem start, F welcomed me and it says clutch position error.. I tried to bleed the clutch yet still error exist, then I went on to perform gearbox relearn, it went to the stage but couldn’t do the touch point automatically, now when I did the gearbox relearn command, it had taken away the clutch position error off but brought up clutch temperature too high fault code and gearbox relearn not complete and geometry fault code...

My question is, is there different between the thickness of the clutch disc originally and that of relining, which could cause the clutch actuator to complain

I also notice that when i turn the key to on, my clutch actuator does not turn itself, even when i try to do clutch bleed, the actuator wont turn, i have another unit, which i put on the car,that also when i turn the key to on, it does not turn... but formerly all this was working fine... please i need help, i notice something unusual that before i did not remove the gearbox and fix the clutch in there, all things was working, but after it was refix and i try to bleed clutch and also do relearn again, then my tech2 begin to lost communication when i try to perform any of th special function, i also tried opcom, and it also gave error... in fact am worried a lot why the clutch actuator does not turn any more, upon key turn ON...

why is it impossible to use globaltis to perform recalibration update for the tcm, when you tried to perform that it give error message

 

If this were my problem I would go back to basics. Check the fuses there are 2 or 3. The wiring no pins bent out of place, either to the clutch or from the clutch to the gear change actuator. Using op-com do a clutch position test, does the clutch actually move? How old is your car? See how you get on, and if still a problem let us know.

 

All pins in the ecu connectors are intact and none has been bend by improper plugging of harness... i did watched it several to be sure, i also check all fuses and check the powers input to the tcm ecu, and all are intact.... scan tool communicate to the tcm alright... but just that when command is send to the tcm, there is no communication respond back from the tcm, such us, clutch test command or shift motor responding... sequence time error is the respond...

with regard to your url, link.. check your mail, i will help you with that,