it is a solid light and a manual gearbox,
light came on and occationaly went out and 4x4 indicator comes back on but is on every time vehicle used
Thank you, XXXXX XXXXX would want a scan tool that read the code in the transfer control unit.
otherwise I can let you know some common causes of these symptoms.
The ATP switch, wait detection switch, and transfer control actuator are all possibilities that commonly happen on these trucks.
Ideally any switch on the transfer case failing will prevent 4x4 operation. If any fault is detected it prevents 4x4 operation for fail safe reasons and turns on the 4x4 indicator.