Rad Fan intermittant - killing the battery

[SuffolkD at aol.com]

Ben offers some reasons........
Now if this is like the newer 200's (mine is a 3B) I have a relay #214 which 
when pulled stops this exact event.
Photos here:
http://www.quattro123.com/Photos200.htm
and a lister mentioned somewhere on this companies web site:
http://www.waytekwire.com/CatPDF.htm is a ~$4 replacement relay / solution.

HTH - Scott by BOSTON looking to solve the same issue.

> From: "Ben Swann" <>
> 
> Just a few thoughts:
> The wastegate heat shield wire could get accidently grounded causing the
> after-run circuitry to be enabled - low speed fan on.
> 
> The fad fan switch could be shorting out -2 - positions AFAIR and usually
> fails in the opposite way IME.
> 
> The fan relay - in this case 1 of 2 could be shorting open or wiring causing
> effect of rad switch on enabling relay causing fan to switch on.
> 
> AC circuitry causes low speed fan mode with AC on Bi-level, Auto, or Def.
> when ignition on and temp set low.
> 
> Just a few possibilities and the wiring diagram will reveal the details and
> test with VOM - you're already onto it.
> 
> Also, definately recommend fusing the fan - ground side.  Should be details
> in archives.
> 
>