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I realize everyone has different truck configurations, and needs. Hopefully everyone that needs to fit a tow mirror onto their 2018+ F150 will find a kit that will work, without too much trouble. I got the wiring figured, just need to find a good spot to mount the sensor.
Attached is a PDF file listing the wiring diagram for the RH mirror for a 2018. #2 and #6 wires are for the AAT, but on the LH mirror I believe the #2 and #6 wires are used for the auto=dimming mirror function if truck had it (mine does not).
My Trail Ridge kit came with a side marker and puddle/spot kit to adapt these functions to trucks that did not come with these functions. Pics of the kits for info:
The Trail Ridge kit from 1A Auto impressed me with the overall fit and quality, and completeness of the kits/directions. The driver side mirror was basically bolt on, the passenger side mirror required a 2 wire AAT t-tapped into the truck door harness #2 and #6 wires. I need to find a spot to permanently mount the AAT sensor, but also have a GM AAT sensor on order to test out. The size and shape of the GM sensor might make for an easier mounting. Will update as it arrives.
Ok, just to finish this off, I tried wiring in a GM AAT instead of my Ford unit, thinking it is more compact and perhaps easier to mount somewhere on the tow mirror assembly. I guess the GM unit is calibrated differently than the Ford unit. The Ford AAT reading 56 deg, while the GM unit read 86 deg. Decided to go with the bulkier Ford sensor, and mounted it onto the inside of the door flange of the mirror. Not much open space on the backside of the door mount, trimmed the sensor a bit, barely fit.
You can see in the picture just the tip of the AAT sensor is showing. I used some silicon caulking on the back side, so this is waterproof now. Reads fine currently, as our weather is very cool, and been getting rain showers. I would guess that the black housing that I mounted the sensor into will transfer some heat on a sunny day to the sensor and give a falsely warm temp. Will have to wait and see how much the temp reading is affected. Sitting in the hot sun, it may be pretty significant until some air flow cools things down.
Regardless, not much choices for me, so this will be how it goes. Good thing this sensor doesn't control anything with the engine system, like a IAT. I really miss having auto a/c in my F150, so manually adjusting cool/warm air flow is how things go now anyway.
1A auto retrofit power fold mirrors using lariat harness and modules
So I bought these powerfold mirrors and decided to do the retrofit to my XLT. I've been trying to sort this issue with the AAT sensor since they make a blanket statement about compatibility for the F150. As far as i can tell these mirrors did not come with AAT sensors since i got the fault after the swap. I would have thought that the 22 pin connector from a 2018 lariat would have the wiring for the AAT but there are no wires at #2 and #6 pin locations on the harness. I'm going to assume that the harness is different on the lariat as far as pin location and color code as i cannot find a pin at the correct location or the right wire color code. does anyone know where i can find a wiring diagram?
I got my wiring diagrams for my 2018 XLT at motorcraftservice.com
Paid for a 72 hr subscription and downloaded all the diagrams I needed. The diagrams are specific to the model. What year is your XLT? You bought power folding mirrors for a 2018 Lariat?
1A auto retrofit power fold mirrors using lariat har
1A auto retrofit power fold mirrors using lariat harness and modules. This is a 2018 XLT I used modules and the harnesses from a Lariat to get the 22 pin connections to cover all of the features that the mirrors have that an XLT would not. Bliss,puddle,turn signal spots, powerfold. The mirrors did not come with AAT in them so I pulled the harness with the pins from the XLT mirrors. But where do they go? Looking for someone with a wiring diagram for a 2018 lariat door harness. The AAT would have been in the mirror on that truck... maybe I need to pin it into the BCM. This mirror swap is way more headache than it was worth....
I feel ya. It was quite a challenge for me to get my tow mirrors working on my '18. Not all 2018 F150 models had AAT in the passenger mirror, only after a certain build date (might be around 2/18). So if you picked up a harness for a early 2018 Lariat, might not have the #2 and #6 pins in the connector, since the AAT would still be in the front grill area. If the mirrors you bought don't have the AAT in the mirror, how were you planning on wiring in a AAT? I ask mostly because I had a tough time finding a place to mount the AAT.
Hope you get it figured out. You are added a bunch of added mirror functions to your truck, and I think others have done similar (some youtube videos on this), but 2018 got more difficult due to the AAT.
Sorry I can't offer more info. Hopefully some others will chime in.
1A auto retrofit power fold mirrors using lariat har
I pulled the pins from the 8 pin plug and the wiring all the way to the sensor. Just need to go to the proper moles connecting for and push the pins in to that connector. I believe I can use the harness inside the door right ar the module. Will see if someone can lead me in the right direction.where did you get access to the diagrams?
I pulled the pins from the 8 pin plug and the wiring all the way to the sensor. Just need to go to the proper moles connecting for and push the pins in to that connector. I believe I can use the harness inside the door right ar the module. Will see if someone can lead me in the right direction.where did you get access to the diagrams?
Anyone can purchase a 3 day subscription to the online wiring diagram library. I don't recall what the cost was, but it was not too bad iirc. At least you can specify exactly what year and model truck you want diagrams for, since they are all different. Ford made this part pretty challenging.
03-05-2019, 10:40 PM
