First, short the two wires on each switch together and see if the lights go on.  If not, it's likely wiring, if they do, it's the switches.  Replace both of them. It's not uncommon for these to fail.

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Jim Felder
Sent: Thursday, October 08, 2015 12:27 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Help me diagnose and fix no brake lights

Daughter was driving behind me in the Westy today and called me to say
neither brake light was coming on. All other lights working. Brakes
excellent, newish MC and brake light switches.

All fuses look good. Where should I start looking?

Thanks in advance for your help. I need to head out of town overnight next
friday.

Best,

Jim