CV Axle Replaced & now 4wd won’t Engage

I replaced my passenger side CV axle with OEM axle and now the 4wd won’t engage? The light blinks but nothing beyond that. The install seemed pretty smooth. This is on my 2012 Tacoma. Anyone direction would be great!
Thanks!!

 

I doubt it was due to the installation of the axle.
The axle wouldn’t stop it from going into 4WD.

I bet it wasn’t working before. You just didn’t know it.

Some voltage readings will tell you where your problem is,
https://www.tacomaworld.com/threads/4wd-system-operation-help-thread.742420/

 

No lights on the dash, check engine/ABS?

 

No lights on the dash, except the blinking 4wd light. I had put it in 4wd briefly while loosening the axle nut but then took it out. The 4wd had worked prior, used it in snow within the past few weeks. I can hear the 4wd trying to engage but never does.