612 HGTS and GTC packages

Cool. Fancy pulling the firmware?

 

Robin- Affirmative on the Motronic ECUs. That post was four years ago and I was relying on the Ferrari documentation, which we all know is not always the best. The early 612 WSM was likely derived from the 575M WSM and they never bothered to update. If you look at the Monroney for 139147, built around December 2004, it shows Motronic 7.3.2 already. Of course it also shows a four speed automatic with torque converter, carried over from the 456M, so again not an exemplary example of technical details. No doubt the 7.3.2 was correct, though, since nobody got that from a 5.2 456M or 7.1.1 575M.

There were some major updates of firmware along the way that caused changes in TCUs and Shock/Body ECUs, making the early ECUs incompatible with the later 612s. Makes me wonder about the 599, too, since my assumption was the change to 7.3.2 was around SN 156938 in Fall 2007. Earlier 599s were not compatible with the HGTE ECUs introduced late in 2009 as MY2010s. That may have been a faulty assumption, too, and 7.3.2 was introduced earlier with a firmware update that obsoleted the earlier ECUs. We do know early 599s had Motronic 7.1.1 based on the Enzo software, but whether the update to 7.3.2 occurred earlier, no firm idea. Nothing on the 599 Monroneys I have about Motronic system.

Incidentally, Eric already has the firmware from my HGTC 575M TCU. Should be no problem pulling it from a 612 7.3.2 TCU, either. The only question would be whether it is compatible with earlier Motronic 7.3.2 firmware. In the olden days, Eric and I provided matched sets of fobs with a new PIN code to about a dozen owners. OBEd once the location of the PIN code in the alphanumerics of the red fob and Alarm ECU/Immobilizer was discovered.


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OK, so we agree that Ferrari may have got their motronics versions mixed up.

You're bang on about the 612 WSM being based on the 575 manual- there's loads of photos in there that are lifted straight from the 575 manual. I suggest it was farmed out to the cheapest contractor with little in the way of checking.

Very much prepared to believe that the firmware updates made through the life of the model mean that there are limitations with trying to install the last gearbox/suspension ecus on early cars. Honestly though, there's only one way to find out.

Unless of course you're aware of anyone thats tried?

 

Oh as an aside on the Enzo ecu's (which I've never thought about before)- I just found this ebay listing that shows a Ferrari part number for an Enzo engine ecu, and the Bosch part number matches up with the ones used for 575/maserati 4200 (0 261 206 950).

https://www.ebay.com/itm/Ferrari-Enzo-Ignition-ECU-part-185257-/110612276709

I still think these are all really Me7.3.x ecu's and not 7.1.1 though!

 

The 360 came with Motronic 7.3, which was really 7.3.1, so no telling why they called the Enzo, F430 and 575M Motronics 7.1.1. The Enzo OM definitely says Bosch Motronic ME 7.1.1.

 

Here you can see the difference between pre Sept 07 ECUs and post Sept 07 ECUs. These are from 599s but it's same thing with 430, 612 and Mases.
1159 XXXX + 810 for pre ones and 1126 XXXX + 944 for post ones.


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Lol.. those photos are of the same part! The Bosch part number is the one beginning with 0 261... if that number is the same, then to all intents and purposes they are the same part to the outside world.

The other numbers will be internal product codes. What I’ve seen from looking inside these things is the change suppliers for the microchips- some are Siemens, some Motorola and some Infineon, but they all do the same thing. It’s just Bosch fishing around for the cheapest suppler for the base components.


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Note one comes from Germany and one comes from France, too. Same hardware. There is definitely something different in there that makes early and late Shock/Body ECUs and TCUs incompatible on the 612 and the 599. Maybe Trev has a clue on that.

Looks like a typo in the second label. Doubt they were making 599 Motronics in 2017.

 

Here is Taz old post. Something was changed from MY08 ( Sept 07 ) from serial# ~157K, both 599 and 612 ( engine code changed from F133F to 133H )

Jul 11, 2014
Affirmative, in late 2007, Ferrari made a major upgrade to the Motronic 7.3.2 fitted to the 599 (and 612). The earlier version of Motronic 7.3.2 is not compatible with the performance pack from the HGTE kit, although the handling and exhaust kits fit fine.

Same thing happened on the 612, where they went from the HGTS/HGTC kits on early 7.3.2 612s to HGT2 on the updated 7.3.2 612s.

 

Apparently I was smarter in 2014 than I was in 2016.

 

ECU part numbers for 612 : https://algarferrari.com/store/parts/12-cylinder/gt-group-2-2/612-scaglietti/table-14

Same for 599 : https://algarferrari.com/store/parts/12-cylinder/gt-group-2-seat/599-gtb-fiorano/table-12

 

Taz...the second label is January 1th, 2008 .


Here is my ECU made October 16th, 2007

 

I could well believe that later suspension modules won’t be happy speaking to early engine modules. If so, then it’s down to the code though, not the hardware.

I still want to try it!

I’m sure it could be made to work if there is a problem. Could do it by updating the engine ecu firmware, and overwriting the calibration tables for any engine components that were changed between early and late cars (if there are any).




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FIN- Affirmative, I read it backwards.

 

I see that the HGTC package incorporates the painted brake calipers (default color red)--does that mean that if you see red (or yellow) calipers on a 612, that it has the HGTC package?

 

No, since those were a separate option available on every 612. Easy to tell if a 612 has HGTC since they have larger factory CCM brakes and the HGTS models do not.

 

Looking to purchase an HGTC exhaust, bought a right hand one just need a left or should I just run a straight pipe from the cat?

(Fortunately I live where I don't have any emission requirements)

 

This is interesting! Maybe I should take a dump too.

What determines the clutch engagement and gear shift patterns? Is it the TCU, ECU or both?

 

The TCU has the algorithms for gear shifting and clutch engagement. It gets information from the Motronic ECUs.

 

Is there a way to check whether my ECU is 7.1.1 or 7.3.2? I ran a scan using Launch but I couldn't find any info about this.
My VIN is 1401XX

 

You could try reading post #30 in this thread........

 

Post #52 got me interested as an earlier car comes with 7.3.2

 

Practically speaking there is zero difference. The hardware is the same all the way through 612, and comparing the firmware on my early 612 with a OTO, the differences are not extensive. Fuel tables for example were identical.

 

The interim TCU seems to work with the 7.3.2 only though