Blower motor resistor (control module) location?

[Snellensee]

Hello everyone,
Could someone tell me or post a picture of the location of the blower motor resistor in the 4th gen? I traced all the wires and harnesses and I can't find it. My blower motor works off and on and Im trying to find that resistor but to no avail. The 4th gen looks completely different than the 3rd gen that I had few years ago. Thanks in advance.

 

[99WhiteC5Coupe]

Hello everyone,
Could someone tell me or post a picture of the location of the blower motor resistor in the 4th gen? I traced all the wires and harnesses and I can't find it. My blower motor works off and on and Im trying to find that resistor but to no avail. The 4th gen looks completely different than the 3rd gen that I had few years ago. Thanks in advance.

You may want to post your year, make, model and trim level in case anyone has year-specific information.

The speed control module may be placed differently on models with standard HVAC control and the automatic HVAC control.

 

[Trainmaster]

You're aware that the blower is computer controlled and changes speeds independently of the switch setting?

 

[Snellensee]

2024 XLT dual climate control

 

[Snellensee]

You're aware that the blower is computer controlled and changes speeds independently of the switch setting?

So there is not a traditional resistor that controls the speed? Or is it built into the blower?

 

[05Superduty]

So there is not a traditional resistor that controls the speed? Or is it built into the blower?

Quick question, do you have the Auto selected on the air conditioning? If so, it will turn the fan up and down based the temp in the cabin. You can keep the "auto temp" working just fine and manually control the fan by making sure there is not a light on the "Auto" button and then increase or decrease the fan speed manually.

 

[Trainmaster]

There is a blower motor module which is located under the dash lower cover next to the right kick panel fuses. This is not your typical resistors. I doubt your problem, if you have one is caused by the module.

 

[Snellensee]

Quick question, do you have the Auto selected on the air conditioning? If so, it will turn the fan up and down based the temp in the cabin. You can keep the "auto temp" working just fine and manually control the fan by making sure there is not a light on the "Auto" button and then increase or decrease the fan speed manually.

I rarely use the Auto but even when I did, the blower would not run. The AC kicks in and the only way to get cold air is to open the outside vents and drive over 40 mph and let the outside air run through the system. I did manage to get it running again by taking out the fuses and putting them back in, disconnected the blower harness and plugging it back in. I really don't know if that did anything and for how long it would run because it keeps doing this and the dealer is of no help. Last time I took it in the blower worked after I got there.

 

[Snellensee]

There is a blower motor module which is located under the dash lower cover next to the right kick panel fuses. This is not your typical resistors. I doubt your problem, if you have one is caused by the module.

Thanks for the tip, I will look for it next time the blower goes out. What else would make the blower work on and off?

 

[Trainmaster]

Are you certain that it's not working properly? As others have written, the blower cycles on and off and varies speeds independently of the switch settings.

A malfunction of the module *should* set an OBD2 code.

 

[SLOANSMITTY]

I have the 2011 Ford Expeidition XL - I am redoing the wires to the blower resit. and blower motor and I must have crossed wires because now the fan will stay on the whole time regardless of pushing buttons on controls..............until the wires burn out in about a 3 week time period. Where can I find the wire configuration so that I know I'm hooking the right ones up.

 

[Snellensee]

Are you certain that it's not working properly? As others have written, the blower cycles on and off and varies speeds independently of the switch settings.

A malfunction of the module *should* set an OBD2 code.

When its out, its out completely. No air flow at all. No code either and it usually either works or doesn't on starting the engine. Its hot down here year round so the AC stays on all the time. The compressor kicks in and the fan controller display (digital) shows different speeds but no air flow at all. Its back working and so far so good. I didn't do anything besides pull both fuses out and put them back in and unplug the blower harness and plug it back in. It sounds like its not the module though. I just remember the resistor going bad on previous vehicles and thought it may be the same but times have changed. Thanks for your guidance.

 

[HILLY]

I have the 2011 Ford Expeidition XL - I am redoing the wires to the blower resit. and blower motor and I must have crossed wires because now the fan will stay on the whole time regardless of pushing buttons on controls..............until the wires burn out in about a 3 week time period. Where can I find the wire configuration so that I know I'm hooking the right ones up.

May get a better response in the 3rd gen forum...

 

[Left Coast Geek]

on any car with 'auto' fan speed, instead of the old school resistor, there's an electronics module that modulates the power to the fan according to either a PWM or digitally encoded signal. This is often on the side of the fan housing

the wiring diagram for a 2019 Expedition, the pages on the Automatic Climate Control show the Blower Motor Control Module on the fan assembly, tucked in under/behind the glove box. Ah, manual climate has the same thing. looks like 3 pins on a 4-pin connector, the power comes from a fused relay in the Battery Junction Box, there's a ground, and a Variable Blower Control signal from the Front Control Interface Module (FCIM). Ah, here's the Blower Motor Control Module: https://ford.oempartsonline.com/oem...5PTIwMTkmdD1tYXgtbGltaXRlZCZlPTMtNWwtdjYtZ2Fz