Use a meter to see if power is getting to the motor. Do you have the Bentley
or another way to get the wiring diagram? What year? It is very rare for the
these motors to completely give up the ghost but the wiring, switches, and
control relays are a whole different story. On the early vans the common
failures beside the radiator switch are the fuse, fuse box, relay for high
speed and wiring. On the later vans add the fusible link, resistor behind
the headlight,  wiring to the air conditioner, and there are two relays, one
on the fuse box and one mounted above it.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Michael
Sent: Sunday, August 9, 2015 7:37 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Rad fan testing

Hi everyone,

I hear people talking about hooking a battery up to the radiator fan in
order to test it.

Never done it. Any ideas on the best way?

Jumping the connector doesn't work, the ground looks like it's connected to
the ground tree behind the fuse panel...now I'm trying to figure out if it's
just the motor.

Mike