SteelTX Posted April 24, 2023 Report Share Posted April 24, 2023 (edited) Noticed cooling fan(s) was running the other day when I got home. Just thought it normal. But, Monday morning the car's battery was dead. And when I connected jumper cables the fan(s) came back on. Did some checking and this model, and it has a 2 channel fan relay (because of optional towing package ) mounted just under the air intake behind the radiator. Appears it's function is to turn on the fans with increase temperature. Tested with an ohm meter and found that one channel, the upper, is on all the time even when cold. Question, is this the only thing that controls the fans? Or is there some other control sending power when needed and then this device will ramp up the second fan as needed? Thanks, Ron C. Edited April 26, 2023 by SteelTX 1 Quote Link to comment Share on other sites More sharing options...
DILLARD000 Posted April 25, 2023 Report Share Posted April 25, 2023 (edited) Believe on your Towing\2ChannelOutput PWM FanController, the Input side is a 3PinSocket; those 3Wires are 12vPower + Ground + PWMControlFromComputer = 8.0~0.8v = 0~100%FanSpeed. Sound like that 2Channel PWM Controller has cratered, a NotoriousFailureItem. Recommend replacing with OEM part FordMotorCraft# 7t4z-8b658-b & avoiding cheaper offbrand replacements (i painfully learned that lesson on this item). You can also buy & replace the entire DualFan+Shroud+Contoller as an assembly, of course for more dollars. Edited April 25, 2023 by DILLARD000 2 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted April 25, 2023 Report Share Posted April 25, 2023 need to replace the fan assembly to fix this issue longterm. may be the module, or not. recommend motorcraft. dorman can be used but make sure the connections are TIGHT. 1 1 Quote Link to comment Share on other sites More sharing options...
SteelTX Posted April 25, 2023 Author Report Share Posted April 25, 2023 Have a fan controller coming in today. Will see. In the meantime. Open hood, plug in fan, drive to destination, unplug fan.... LOL..... Thanks, Ron C. 2 1 Quote Link to comment Share on other sites More sharing options...
Haz Posted April 25, 2023 Report Share Posted April 25, 2023 These documents may also be helpful... Power Distribution-BCM - Wiring Diagram - Cell 013, Page 2 - 2012 Edge Workshop Manual.pdf COOLING FAN MODULE - Wiring Diagram - 2012 Edge Workshop Manual.pdf COOLING FAN MODULE - Connector C1554 Details - 2012 Edge Workshop Manual.pdf COOLING FAN MODULE - Connector C1554 Locator - 2012 Edge Workshop Manual.pdf Cooling Fan and Shroud - 3.5L, 3.7L - 2012 Edge Workshop Manual.pdf Good luck! 4 1 Quote Link to comment Share on other sites More sharing options...
SteelTX Posted April 26, 2023 Author Report Share Posted April 26, 2023 Got a new 2Channel PWM Controller from Autozone. $223 total after a 10% discount via a friend. OEM part. Forever warranty. Issue fixed. Appreciate the help from everyone. Ron C. 4 Quote Link to comment Share on other sites More sharing options...
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