Quote Originally Posted by EagleMark View Post
Can't you do anything without math?

Well here's 16196395 and A10 goes to VSS but not a very good diagram.
That's a pretty poor diagram, and just shows a connection to some non existant (in the diagram) VSS sensor, that could mean a DRAC, or directly to a sensor, it's really quite vauge and wouldn't base any thoughts ablout 4L80E not using a DRAC on that single diagram.

And here's 16197427 with VSSB and 4L80E going to PCM hi and lo so maybe it's 4x4?

Near the bottom at pins F12 and F13, it shows an input from the DRAC (VSSB), and these are known to be correct vehicle speed input pins.

Trans input speed is just that, input speed at the trans input shaft, not output shaft. The "hi" and "lo" in this case are refernces to electrical properties, the "lo" is essentially a ground, and the "hi" is the actually changing signal from the sensor that the ECM uses to watch trans input speed.

[quote]and here's a 16197427 VSS going into VSSB but does not say trans?




Huh? I see mention of both location on transmission and showing connection directly to the DRAC.