4wd high not working low does.

[zenchal26]

Hey can’t get this 4wd high to work on this 1994 1 ton chevy. Goes into 4 low but not high, has shifter on floor. Replaced actuator on front axle with the upgraded motorized one. Replaced switch on transfer case. Shift to low can hear actuator work and lights on shifter light up. Switch from 2 to 4 high no noise from actuator no light. Is there any other electrical components to the system or am I chasing wires to find broken ones at this point?
Posted via Mobile Device