... things like high idle or maybe kneel circuits wont set a code??!!
as the ecu wont know that i didnt switch it on and i maybe still have a problem in these!
a high tps count should be shown as code ??
No, none of these things is considered to be a problem or failure within the transmission, which is what codes are for. They are "normal" operator-controlled (usually) events. High TPS count could just mean you have your foot on the throttle -- that's not a "failure," per se
, but the tranny still does not want you to shift into gear with the revs up above idle.
The CEC-1 book that I mentioned will have wiring diagrams for all the tranny inputs, along with wire numbers. This should help you trace things out, such as the interlock for the kneeling circuit. Also, the 748 ideally mates to an electronically controlled engine; however, it sounds like you have a mechanical. So there are senders on the mechanical side that might be touchy, or have loose wires, etc., such as the throttle position sensor (on an electronic engine, the TPS is just a data link between the two control units, so an actual position sensor problem would show symptoms on both the engine and the tranny).