th400 kickdown

[timcrow00]

my trans has and electronic kickdown with the switch on the gas pedal. the switch on the gas pedal has power and is sending power down to the trans like its supposed to and when its supposed to, however the kickdown does not work unless speed is under 35 and even then it will only down shift 3-2 not to low gear like it should. and there is no passing gear kickdown. does the module that the wire hooks into go bad or is something wrong with the trans itself, just had i rebuilt a couple weeks ago