I just put my front diff. back together on my 02 p650. I went to ride it and it done great for the first 1/2 mile then I locked it in 4wd and the 2wd & 4wd lights on the meter started flashing going from one to the other and it won't quit. Is there a way to reset this? What do I do? Please help. I have a big ride for tomorrow... Thanks...

 

Considering where you have been tooling, I'd say it is a failed 2WD/4WD Actuator code.

Pull it off and check it. Check your fuses also.

I don't see any instructions on "resetting" it.