VVTI 5 speed auto box problem

[wyniesvvti]

I'm running a lexus vvti with 5 speed auto box with standard ecu on toyota camry shifter.
in drive position the auto box only shifts up to 4th gear.
is there some wiring that must be done on ecu to select overdrive or 5th gear mode?

 

[JZH]

I just happened to have watched one of Kelvin's videos, which might help:

Ciao,

JZH