Tech 2 help

latvius · Dec 5, 2024

I got this far but then after I got lost going that route into a section I can't figure out. I found a YT series on tech 2 for dummies but it is for a saab, I will prolly watch it and see if I can learn anything.

swathdiver · Dec 5, 2024

If you were to click on F2, then on that menu there would be functions above the hard buttons below the screen. Those would say to open or close or make it colder or hotter, etc.

So you press those to test the actuator and can see other lines showing it in action moving through 0-255 counts or 255-0 counts.

After installing the new actuator did you perform a relearn? I leave the engine running doing these tests so the battery doesn't go dead.

Fless · Dec 5, 2024

Although those buttons are "hard" they're technically known as soft keys, since their functions change by what's shown above them on the screen.

They pair up with the screen info, like this:

latvius · Dec 5, 2024

Ok I just learned these are the function keys lol.
I'll go back in tomorrow and press f2 and go from there.
I haven't done a relearn from tech 2 was just disconnecting battery.

latvius · Dec 5, 2024

Fless said:
Although those buttons are "hard" they're technically known as soft keys, since their functions change by what's shown above them on the screen.

They pair up with the screen info, like this:

View attachment 444210

I actually figured that part out but I ended up on that same screen and couldnt figure out where to go from there. I guess those counts are error counts?

Fless · Dec 5, 2024

latvius said:
I actually figured that part out but I ended up on that same screen and couldnt figure out where to go from there. I guess those counts are error counts?

No, not error counts. The "actual" count should closely match the "commanded" count; the actual is the position of the door. Compare the two associated positions and know that a small difference is okay. That tells you that the computer is commanding the door to be at "x" position and the actual should be close to the same number.

In your pic the mode door is only one count off of the commanded position (83 vs 82, respectively). Much joy!

latvius · Dec 6, 2024

Fless said:
No, not error counts. The "actual" count should closely match the "commanded" count; the actual is the position of the door. Compare the two associated positions and know that a small difference is okay. That tells you that the computer is commanding the door to be at "x" position and the actual should be close to the same number.

In your pic the mode door is only one count off of the commanded position (83 vs 82, respectively). Much joy!

OK gotcha, that makes sense

Joseph Garcia · Dec 6, 2024

@latvius I have a couple of Tech 2 User Guides, one specifically for GM vehicles. The files are too large to upload to this Forum, but if you PM me your email address, I can send them to you.

latvius · Dec 6, 2024

OK I learned some more, now what does the comand state on and off do or supposed to do?

Fless · Dec 6, 2024

Command it OFF and see if the counts go to 0?

Tech 2 help

latvius

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swathdiver

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latvius

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Joseph Garcia

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