the instrument panel. Furthermore, the "4x4 HIGH" light flashes on
and off.

In addition, Prior to the herein describe problem, the brake pedal
felt like the ABS was on, even on dry pavement and at low speed. Now,
with all lights still on in the instrument panel, it seems that the
onboard computer "OC" has disabled 4WD, ABS and Advance Track
"AT"(which the OC is saying to service the AT) therefore am now
driving 2WD. I even tried to turned off the truck and turned it on
right away and it seems that the onboard computer is trying to reset
itself (no light in the panel, but the pedal start to feel like the
ABS is on (hissing pedal), however, after a few 100 yards of driving,
I am back to square one (ABS and AT lights on and 4x4High light
flashing with disabled function!!)

Anyone has any ideal of what the problem might be?

I have purchase an OBD2 computer to verify what error code I might
get. However did not yet received it!!

Thanking you in advance for your help!!