94 rodeo mode display

Hi everyone, I am a new member. I have a 94 rodeo v6 A/T 4wd. It drves like it's in limp mode but no check trans light and power/winter mode don't work. I have another rodeo a 93 and the display and power/winter modes work fine on it when I swapped parts. All fuses are good and alternator output is 14.2 volts. I have cleaned the range sensor but it made no difference. I traced the wirimg and it has power/ground and continuity. Any help would be much appreciated thanks.