Cat Grader 140H

[amansolomon]

What cat140H gear shift not working in order if I start with move with if change from high to low and vice versa don't change speed move with the start with it and read fault code

030
0271

036
0100.03
0545.05
0274
0267

081
0669.02
0177 code how to fix it

 

[Nige]

Try fixing the 0669.02 first. That is a transmission input speed sensor Code.
Also post a full machine Serial Number please.