Auto Dimming mirrors?..
12-31-2018, 09:04 AM
#61
Auto Dimming Side Mirror 2018 XLT 302A
I have a 2018 XLT 302A with existing auto dimming rear view mirror. Does anyone know if there is additional wiring needed to get a side mirror from a 2016 XLT to auto dim?
04-09-2019, 10:38 PM
#62
My notes, not clean but has all the info for my truck 2018 XL. The wiring diagrams are for a 2017 since they haven’t released to new drawings yet. I have found most everything is the same except a few things. One was the plug on the c pillar, which I had to just trace the wires to make sure I used the right ones, but the colors didn’t not change, thank you ford!
Ground
Harness
Wires inserted into existing plug
Front view
Female pins for C pillar
The harness I made from simple automotive wire, oem plug WPT1294, female pins to plug directly into the headliner harness (in previous photos). The mirror itself is BU5A-17E678-LA which I purchased on eBay for $50. I hooked it up today and it all worked.
The fact is is it took a lot of research of wiring diagrams etc, and I was carful making the harness. You only need five wires if you plan to dim your outside mirror too, three otherwise. So the wpt1294 has 16 wires, I used a jewelers screwdriver to remove the unused pins so it would be neat. I also kept the pigtails flat to the point at which the ar soldered to the longer wires. The makes it fit nicely under the headliner.
Post by tbsheets used BU5A-17E678-LA. I'm currently in a rental 2019 f150 xlt with the Auto dim mirror and the back shows part number fu5a17e678va. And when looking on tasca for my 2017 f150 xlt, I'm getting part number BU5Z-17700-D. Are these all the same part but just superceding each other?
Any clarification would help. No matter which one I go with, I'm going to get on eBay with the plug in it already hopefully and build my harness from that. I already have the 22 pin Auto dim/ fold/ blinker/ spots from a lariat if that info helps. Thank you again for your help
04-12-2019, 11:19 AM
#66
04-12-2019, 02:42 PM
#68
Senior Member
Hey guys, I'd rather revive an old thread with most of the info in it, rather than start a new one. I'm looking to do this mod soon but getting conflicting part numbers for the rear view mirror, itself.
Post by tbsheets used BU5A-17E678-LA. I'm currently in a rental 2019 f150 xlt with the Auto dim mirror and the back shows part number fu5a17e678va. And when looking on tasca for my 2017 f150 xlt, I'm getting part number BU5Z-17700-D. Are these all the same part but just superceding each other?
Any clarification would help. No matter which one I go with, I'm going to get on eBay with the plug in it already hopefully and build my harness from that. I already have the 22 pin Auto dim/ fold/ blinker/ spots from a lariat if that info helps. Thank you again for your help
Post by tbsheets used BU5A-17E678-LA. I'm currently in a rental 2019 f150 xlt with the Auto dim mirror and the back shows part number fu5a17e678va. And when looking on tasca for my 2017 f150 xlt, I'm getting part number BU5Z-17700-D. Are these all the same part but just superceding each other?
Any clarification would help. No matter which one I go with, I'm going to get on eBay with the plug in it already hopefully and build my harness from that. I already have the 22 pin Auto dim/ fold/ blinker/ spots from a lariat if that info helps. Thank you again for your help
04-15-2019, 12:52 AM
#69
Thank you for bringing that up. I will either go with the part number mentioned in the original thread or one for a 2017
09-13-2019, 02:43 PM
#70
Senior Member
May I ask what year is your SCREW STX? Mine is 2019 w/o auto dimming but does have a sensor for pre-collision assist. Dealer told me they can change to auto-dimming mirror for $599 so I am sure it is feasible. Of course I don't want pay that much so just wondering if the wiring is same or even easier.