Tre-Cool wrote: ↑Sat Jul 13, 2024 12:39 pm
So my knowledge there are 2 things with the compatibility.
1 is the hardware taking the flash, so pre 2009 will take anything to 2006 & the same for 2006 to 2009.
2009.5/2010 will take anything to end of production for our commodores, since most Operating systems have some overlap to the wider GM world I can't see why they wouldnt work. I've flashed a 2012 tcm to 2017 VF & it worked.
ECM to TCM compatibility is the 2nd hurdle. This comes down to CAN communication setup between the 2 modules, the U0100/0101 codes are directly related to the SOHM configured on each module. The ecu in your instance is expecting to receive data on a specific can ID so it knows it's got a healthy connection to the TCM. So in this case it's likely that while the trans is happy, the ECU is not getting what it expects the TCM to be broadcasting to & flags the fault.
if the box is shifting as expected, just turn the dtc code off.
after the update to 2017 OS, i get 2 error codes,
0x7EA: P0658 - Actuator Supply Voltage A Circuit Low (Pending, Current, Permanent)
0x7EA: P0962 - Pressure Control Solenoid A Control Circuit Low (Permanent)
wuld you think that is incompatible hardware or a wiring issue? I dont recall that issue with the other OS
i'd be checking your wiring. there should be 2 x constant 12v from battery along with 2 x switched ignitions.
Pin Wire Colour Circuit No Function T42 Pin
1 Orange/Yellow Battery 12v 32
2 Black Ground 49
3 Orange/Black Park/Neutral Switch
4 Orange/Yellow Battery 12v 32
5 Black Ground 49
6 White/Blue Stop Lamp Switch Signal 42
7 Tapshift wire
8 Can Low 3
9 Dark Blue Accessory Wakeup serial data (12v ignition) 11
10 Brown/Black Can High 1 7
11 Brown Can Low 1 6
12 Pink Ignition 12v 31
13 Brown Can Low 2 37
14 Brown/Black Can High 2 38
15 Can High 3
16 Orange/Black Replicated TOS Signal 5
antus wrote: ↑Mon Jul 15, 2024 9:18 pm
@tonn0297 do you mean chip level pinout? Not TCM connector pinout? I am thinking the TCM connector should be documented and you can see any power pins changed that might cause that DTC and be something fixable with wiring.
yea i mean chip level, as the TCM connector sadly dont have any of the solenoids pined out to messure on. Ill recheck the TCM plug, and flash the 4908 back into it to see what happens.. i wuld be sad if indeed a software issue, as i do not assume i can swap CAN msg over from a newer os..
So flashing back to the 4908 trans do not throw any error codes, other than not beeing able to communicate with the ECU.. So its 100% a OS thing, but odd that trans shifts fine when the error was not there.. maybe i can dissable the DTC and it will work fine??
So ive tried loading the 24256125 in it, and the trans shifts, ive attached a HPT log. But the engine do not pull timing on shifts so its probably not good to drive with..
So im gonna try and compare the OS / CAN portions of the 24256125 and 24276638 or alike, hoping its just a small change to get it to work... tho i do not have anything to flash a BIN to the TCM, only HPT... (very much wish i got the efilive stuff), as i cant upload a XDF to HPT to get custom definitions
Or maybe making a teensy to do a man in the middle and dooing all the translations there... Tho a new TCM is like 160$ refurbed, so i may go that route, but making a teensy that will enable any 6L80E to work with any ECU that had them in
was gonna reply to your thread on hpt, but will do it here instead.
So i had a commodore in for tuning yesterday, it had ECU OS-12635863/12635862 & TCM OS-24254909/Cal-24254908.
Upgraded them to ECU-12639270 & TCM-24256125 as i have more custom parameters mapped in them.
Anyway, looking at the tcm bin files, there is defeintly a difference for the can data both in whats transmitted & received.
Theres only a couple of TX can differences, but a whole heap of RX differences. can id 19D should be the transmission request for torque mgmt from memory. I was looking into this the other week for 1 of my cars but im drawing a blank at the moment.
Tre-Cool wrote: ↑Sun Jul 21, 2024 2:18 am
was gonna reply to your thread on hpt, but will do it here instead.
So i had a commodore in for tuning yesterday, it had ECU OS-12635863/12635862 & TCM OS-24254909/Cal-24254908.
Upgraded them to ECU-12639270 & TCM-24256125 as i have more custom parameters mapped in them.
Anyway, looking at the tcm bin files, there is defeintly a difference for the can data both in whats transmitted & received.
Theres only a couple of TX can differences, but a whole heap of RX differences. can id 19D should be the transmission request for torque mgmt from memory. I was looking into this the other week for 1 of my cars but im drawing a blank at the moment.
wuld there be any shot of remapping that? or not worth it? Im unsure if the 2010 valvebody will accept a 2017 TCM
