MTFS - Multi Function Temp Sensor Testing

[Ben Swann]

Thanks Randy,  
 
Info is helpful.  I was looking also for info. on how to test to see if switches are
good, marginal, or bad.  I have a bunch of switches and am trying to determine if they
can be used or not.
 
Ben

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From: QuikQtr at aol.com [mailto:QuikQtr at aol.com] 
Sent: Sunday, July 20, 2008 12:44 PM
To: benswann at verizon.net
Subject: Re: MTFS - Multi Function Temp Sensor Testing


ECT (MTFS) Terminals:
 
#1 : Brown w/Black = goes to Engine Temp Gauge: If you Short this Terminal to Ground
with the Key On the Temp Gauge should Move to Full Hot
 
#2 : Blue w/Yellow = goes to the A/C Control Head and Shuts off the A/C Compressor when
under an Over Heat Condition or if the ECT Fails
 
#3 : Black w/Blue = Terminal 15 (Ign. On Power) = No longer Required with newer
3-Terminal ECTs
 
#4 : White w/Black = Connected in Parallel with the Coolant Level sensor to Trigger the
Idiot Light (Auto Check System) when under an Over Heat Condition or if the ECT Fails
 
Later, Randy



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