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- - Cooling fans (http://986forum.com/forums/boxster-general-discussions/73280-cooling-fans.html)

gabedrummin

09-15-2018 11:21 AM

Cooling fans

What triggers the cooling fan relay to kick the fans on? My left fan is not comming on and the fuse is good and so are all the relays .Checked both fuses and all 4 relays.? Thank you all ..!

particlewave

09-15-2018 11:30 AM

Engine temperature.

Use a jumper at the relay socket. This will tell you if it's a relay signal issue or if the problem lies in the wiring or fan itself.

particlewave

09-15-2018 11:34 AM

Jump between pins 30 and 87, like this:

http://i875.photobucket.com/albums/a...AD000A932C.jpg

thom4782

09-15-2018 12:46 PM

if the left high speed fan works, but the low speed one doesn't, then the most likely culprit is the ballast resistor.

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