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No light on transfer case switch

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Old Jan 31, 2023 | 11:46 AM
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Default No light on transfer case switch

Newbie to the forum...

I've had my 2019 for three years and past the base warranty, into the extended. The transfer case switch on my dash works fine to switch 2WD to 4WD, however there are no lights within the switch, which makes it hard to see at night or low light. Shame on me for not paying attention to this earlier in my ownership where I could have had it replaced, and now I'm not sure if it's covered under Ford extended or not. Can anyone confirm if the lighting is built into this switch or if it's somewhere else I need to look?

I've researched the part to this part number - FL3Z-14B166-BA.

I'm making an assumption that the light is built into the switch and not a separate light behind the switch in the dash. Dealer wants to charge for diagnosis (really annoying), and since I can find the OEM part it would be cheaper for me to just replace it myself since I should be able to pop it out of the dash, unplug the old, plug in the new. Please tell me if I'm off base on any of my assumptions. I believe all the white lettering in the image below should light up if it's consistent with the rest of the dash board.



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Old Jan 31, 2023 | 11:50 AM
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i cant remember on my 16 or 18 if that switch lit up, i know it doesn't indicate what range you are in
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Old Jan 31, 2023 | 12:10 PM
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They don't light. If you look at your dash it will tell you if you're in 2H or 2L
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Old Jan 31, 2023 | 12:13 PM
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Originally Posted by Scott91370
They don't light. If you look at your dash it will tell you if you're in 2H or 2L
^This. At least on my 2016.
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Old Jan 31, 2023 | 12:14 PM
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I also have not seen this switch light up either with ambient light or to indicate position on my 2018.

So I don't think you need a warranty claim for a failed light (since there is not one).
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Old Jan 31, 2023 | 12:38 PM
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Thanks for the prompt replies - I appreciate the input. Seems odd to me that only this switch would not have backlight considering even the brake controller below it has a back light. I understand the drive status displays in the main cluster, however so do many other things like fog lights, cruise control, etc. Lighting the switch would just be consistent. One less thing to be concerned with.

I did find this image on the web - I just cut out the switch from the entire dash photo/image. Looks OEM but maybe not.


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Old Jan 31, 2023 | 12:43 PM
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Hmm. Maybe early 2015 did, kind of like the gearshift lighting that was phased out?
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Old Jan 31, 2023 | 12:44 PM
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The switch backlighting may have been removed from mid-2018 and beyond, like it was for the gear shift indicator backlighting.
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Old Jan 31, 2023 | 02:43 PM
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I've had 2 FX4 F150s and this switch did not light up on either of them. The selections (2H, 4H, 4L, PULL) do light up. The switch really ought to light up, like all the other controls.

Last edited by Taggart; Jan 31, 2023 at 02:58 PM.
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Old Jan 31, 2023 | 02:53 PM
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I'm almost certain my 2020 does not light either. Does display with anything besides 2H in the dash.
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