2003 P59 PCM no TCC lock after reflash to 7603

[V8fan]

Hi guys
Reflashed P59 from 12579405 to 7603 - simply because I have my mod ver of 7603
All went good and car starts and drives but no TCC lock at all (even in diag I see status locked)
If I turn it on thru diagnostic -it works
But not working on road test
Is it possible that 2003 has some difference in hardware ?
I simply don't understand why it works if I activate thru diagnostic but not working while I test drive it

[antus]

if you turn it on with diagnostics through the pcm then the hardware must be working. So Im guessing there are other settings in the calibration that are out so its not meeting the requirements to lock. You'll need to check things like speed data, maybe pulses per km/mile are set wrong for the vehicle or maybe there are some other setting(s) you need to bring across.

[V8fan]

Its strange cuz I cloned mine 7603 to it and all parameters same (and mine works )
Mine was originally 7603 from 2004
I was expected some hardware changes but diagnostic tool has no problem to activate both TCC PWM and TCC lock solenoids

[antus]

If the diag tool is working, then if its a hardware difference its an input that is on a different pin, or different type of sensor signal, or the other option is that its calibration logic in the 2002 that is different. Either way, you should be able to see the difference if you put the data side by side and bring some settings across. Not sure if universal patcher can identify the same settings in different operating systems. Alternatively maybe commercial software can do it if you can find the files to compare in the right format. You dont need to save the changes or flash them in with that software, just a way to look for differences to validate what might be going on, then move back to free tools.

[V8fan]

Pins same
Its program logic related
In HPT I have 4 channels related to TCC lock
I dunno difference between them (no description) but at mine I have 3 channels indicates that TCC lock on (and sometimes 4th at engine braking) and its really locked
At 2003 only 2 channels signals that TCC on and 2 another not going to lock state
I had little time so I reflash back 9405 and copy/paste all parameters from mine
And its worked as should
I will proceed after I achieve similar PCM with such hardware