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Can somebody tell me where the high speed fan sensor/switch is or provide alternate diagnosis?
 

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It's computer controlled.
High speed won't come on until like 220°F or so.

Sent from my SM-N960U using Tapatalk
 

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There is a relay for it in the Forward Control Module. When I used to go to the drags all the time, I used to jumper it so it ran all the time. Over on one of the LX forums we called it the 25 cent fan mod.....two spade connectors and about 2 inches of No. 12 wire.
 

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It's computer controlled.
High speed won't come on until like 220°F or so.

Sent from my SM-N960U using Tapatalk
So, my fans do not come on. I used a multimeter to confirm there is no voltage at the plug where they both connect. The fuses and relays are fine. So the only thing left for me to check is the wires between the fuse box and fan plug. If continuity is fine, and they still don't work, what then? What is there left to check?
 
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