Blinking 4x4 lights on dash

[boomer725]

Last night while driving the 4x4 high and 4x4 low lights on the dash started blinking. They will blink 5 or so times in unison and then stop for about 3 min. 4 wheel drive will not engage anymore. Ideas?

 

[boominXplorer]

Check the T-case wiring harness. If its ever been undone its easy to take back off after that first time so you could of hit a bump and it unplugged.

 

[nailhead_sled]

Disconnet your neg battery lead, let it sit for 15 mins, reconnect and check if the problem still exists.
It solved the problem for me.

 

[TPLYNCH]

Make sure the speed sensors on the T/F case are still plugged in. May want to pop them out and clean them. If the lights are blinking 6 times, that is an indication of a fault with the speed sensors. If it is 5 times, that is a different fault, but i'm not sure what. The sequence of the blinking lights is the code.

 

[CodePoet]

The flashes are actually telling you there's an error code...and the sequence of them lets you diagonose them. Do a search on this site, I know there is a thread on here describing what the error code/flashes being communicated means.

Good Luck
CP