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EF Thermo fan - signal wires? 

 

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 Post subject: EF Thermo fan - signal wires?
Posted: Thu Jun 24, 2010 10:28 pm 
Parts Gopher
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Age: 43

Posts: 87

Joined: 7th Sep 2009

Location: melbourne
VIC, Australia

Just wiring up the EF thermofans.
Drew a rough circuit diagram.

There is a siganl wire for each relay from the ecu.
Two signal wires are the same colour, dark blue, shown thick in the pic... Generally when wires are the same colour they do the same job
Does the ecu trigger both these relays simultaneously? doubt it.
Attachment:
IMG_1750.jpg
IMG_1750.jpg [ 39.9 KiB | Viewed 128 times ]

 

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 Post subject: Re: EF Thermo fan - signal wires?
Posted: Sat Jun 26, 2010 11:19 pm 
Stock as a Rock
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Location: canberra
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that diagram looks like it would have the far left relay pull in for both thermos in series and probably low speed, second and third relays pulled in gives full power to both motors but the top one is missing an earth so it would do nothing, is the diagram correct? the fourth relay switches an earth to nothing. im not sure what to make of it. I'll get a copy of the ford wiring diagram on monday and let you know what's doing if no-ones answered you by then.

 

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