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Discussion Starter #1
I have a 2010 FJ which I thought had all the options but I found a blank switch on the center console lower row which is prewired. Any ideas on the function?
 

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can you press it in? if not, it's just a factory blank. there for if you want to add another option some day.
 

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Discussion Starter #4
I used two of the blanks for driving lights and fog lights. The third blank is attached to a wiring harness. No idea about the function.
 

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Picture? which button is it?
 

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you don't have the back up beeping thing ? the third on from the left on the bottom row turns my backup sensors on and off.
 

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you don't have the back up beeping thing ? the third on from the left on the bottom row turns my backup sensors on and off.
That's it... you're missing the backup parking assistance sensors. I bet that is the pre-wiring for that installation. My factory installed parking assist is to the right of the 400/100
 

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Discussion Starter #15
Thank you, those wires started to the right of 400/100 before I added the fog lights. Mystery solved, I feel much better!
 

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theoretically, yes.
 

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i have the same blank switch with the wires on it and i also have the backup sensor switch so i don't think thats what it is....
 

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I have a 2010 FJ which I thought had all the options but I found a blank switch on the center console lower row which is prewired. Any ideas on the function?
I just found this too. I don't have the reverse sensors, or the subwoofer, or factory fog lights. So I figured it's one of those but I don't know which one. Anyone know?
Looks like Highwaystreets has the backup sensors and the pre-wired switch. So he ruled that one out.
 

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It could be for the factory wiring of the front bumper spot light option. The kit as they sell it only comes with a short wire so maybe thats it?
 
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