The turn signal and 4 way flasher wiring is a bit complex. You will have to do some troubleshooting. Begin with looking for a blown fuse or other power problem. The 4 ways get power all the time where the turn signals require the ignition to be on. 

Dennis
 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of thewestyman
Sent: Saturday, June 27, 2015 2:41 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Emergency flasher won't work

Hi to all,

The turn signals work on both vans but the emergency flasher does not.  I have a few switches and all of them fail to make it work.
I’m not sure if this has ever been discussed.  
Wonder where to start to look into things.
Best wishes to all,
Zoltan