TCC enable in Universal Patcher

[paradigm]

I cannot get my TCC to lockup. It is definitely a tune issue, as I was able to use an Autel scan unit to command lockup. However the Autel states that the TCC enable is set to "No".

I segment swapped the trans cal and diag from a stock 2007 express van bin (OS 12613248) but it still doesnt command lockup. Which parameter should I be enabling in the tune to get the PCM to command lockup?

[antus]

I dont have the exact answer but if I filter the available options against TCC in universal patcher there are a lot of options. If I were you I would open the old and new bin and search for TCC in both and then go down the list looking for differences and copying them across.

[paradigm]

I dont have the exact answer but if I filter the available options against TCC in universal patcher there are a lot of options. If I were you I would open the old and new bin and search for TCC in both and then go down the list looking for differences and copying them across.

Thats exactly what I did, opened both and compared looking for differences but there was none with any of the TCC_ parameters. Only thing I see that is not checked on any tune I have opened is "TCC_Enable_Solenoid_Present which is unchecked; however I do not believe that the 4L80e has this enable solenoid whereas the 4L60 does and hence why it isn't checked?

[joukoy]

If you have too much misfire, TCC will not work. There is also other rules, like minimum coolant temperature etc.

[V8fan]

I cannot get my TCC to lockup. It is definitely a tune issue, as I was able to use an Autel scan unit to command lockup. However the Autel states that the TCC enable is set to "No".

I segment swapped the trans cal and diag from a stock 2007 express van bin (OS 12613248) but it still doesnt command lockup. Which parameter should I be enabling in the tune to get the PCM to command lockup?

Did you changed OS version ?
I had such issue when reprogram different OS
All works but TCC wont lock up
I reflashed back OEM OS and transfered all parameters -and it worked as should
I have no clue what it was and that PCM was sent to its owner so I cant do it again to find solution

[paradigm]

If you have too much misfire, TCC will not work. There is also other rules, like minimum coolant temperature etc.

Car isn't misfiring, overheating or throwing any trouble codes, or displaying any signs of trouble.

[paradigm]

I cannot get my TCC to lockup. It is definitely a tune issue, as I was able to use an Autel scan unit to command lockup. However the Autel states that the TCC enable is set to "No".

I segment swapped the trans cal and diag from a stock 2007 express van bin (OS 12613248) but it still doesnt command lockup. Which parameter should I be enabling in the tune to get the PCM to command lockup?

Did you changed OS version ?
I had such issue when reprogram different OS
All works but TCC wont lock up
I reflashed back OEM OS and transfered all parameters -and it worked as should
I have no clue what it was and that PCM was sent to its owner so I cant do it again to find solution

I believe it has the stock OS loaded, I am not sure if the prior owner would have changed that. I only segment swapped the transmission calibration and diagnostics from another 07 bin file.

[paradigm]

he only thing that I saw that I am not sure applies to the 4L80 is that the TCC_Enable_Solenoid_Present is not checked, however I believe the 4L80 doesn't have this solenoid and only the PWM solenoid for TCC, or are they one in the same and this should be checked?




Is there anything else I should be looking at in the tune to get the computer to command TCC lockup?

[V8fan]

4l60e typically has 2 solenoids ( I believe all 95+ have 2)
TCC on-off and TCC PWM
First rerouting oil to apply(enable) lock-up clutch and PWM responsible of pressure that applied to clutch (and it often disabled hydraulically into VB after performance rebuild because VB eroded by continuous oscillation of PWM shifter and loose pressure = burnt clutch )