When I place the truck in neutral and activate the switches, everything looks normal, lights change and everything, you can hear the transfer case changing and making the same sound
when the failure occurs the light 4WD unlocked remain lit.
Why do you suspect of the switch?
I've been reading a lot about transfer case and everything related lately,
the problem looks to me below, the 4WD engage without command and according to what I read, it can be caused for a defective VSS, or defective encoder, or definitely a bad TCase (folk) or other thing inside.
I also suspected the TCC module but I have inclination to think if the module is defective the lights should be changing, don't you think?
This is my plan.
1.- I will change the sensor,
2.- I will change the encoder if nothing happen
3.- I will have face the TCase replacement
one last question, any of these changes will require any programming?
I will keep you posted.
Wednesday, June 12th, 2019 AT 5:57 PM