So just got my SWEET 07 sequoia and made the mistake of not testing the 4x4 before I bought it, now planning a trip to the snow and decided to test it out with failure results

I have the 4hi 4lo and the locking center diff light lit up and flashing at me!

This truck is MINT so I am willing to bet the previous owner NEVER used the 4x4.

I need to know which route to go- front actuator? Center actuator?
Is there a rebuild that I can do on these or is it just straight replacement?

 

did you get the owner's manual? it might give you a course of action
might be something simple but have no clue.

trucks need to be put in 4WD at least monthly to keep stuff working correctly.

 

yep! Did everything the owner manual said to do.
I know, this system was never used!

 

for the record- Camelback toyota is stepping up BIG TIME and fixing this for me for free!
The problem- The center motor contacts got caught between two phases causing the ECU to freak out and not know what to do.
The fix- replace the center acuator- 2600 was the quote with 1200 being part alone!
CYCLE YOUR 4WD EVERY NOW AND AGAIN PEOPLE!!!!