[DeTomaso] Fan relay

[Mark McWhinney]

If I understand you right, it looks like you have the relay set up OK.  The
87-30 takes the heavy load from power source to fan.  The 86-85, which
enables the 87-30 flow, runs from the switch to ground.

Just keep doing the continuity checks.  I eventually found my fan problem on
the connection from the relay to the fan.  It was due to a fried connection
inside one of those white multi-lead connectors that was deep under the
dash.

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Mark Tumbarello
Sent: Saturday, June 09, 2007 1:47 PM
To: detomaso at realbig.com
Subject: [DeTomaso] Fan relay

Hi all, I just replaced the fan relays and thermo switches after the low 
temp fan failed to auto activate. I've checked wiring and found a failed 
connection at the brown lead from the thermoswitch. I resoldered and checked

for continuity with 0.1 ohms resistance. I reconnected with all the new 
parts and still no fan activation. I can bypass everything and get the fan 
to run when activating the ignition switch, but I can't seem to get it to 
activate through the new relay. I have it wired #85 to ground #86 to switch 
#87 12v from ignition and #30 12v out to fan. What am I doing wrong here?  
Thanks, Mark


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