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Finally had a chance to do this install over the weekend.

I had read this:
Lighting & Electronics FAQ - Foglights

...and this:
shweggys_foglight_page

But it all made it more difficult than it had to be. I had this literally installed in 20 min.

It appears that most Sequoias that didn't come with factory fog lights, actually are already prewired. Just need to add your fog lights, a relay, and a switch. I chose to go OEM, so I bought:

1. OEM fog lights for the Sequoias from usautopartsdepot on Ebay for $85/pr.

2. OEM headlamp/turn signal switch w/fog for a Sequoia Limited (Toy #84140-0C030) for about $58 shipped from 1stToyotaParts.com.

*there is a switch made especially for the SR5, but it's more than double the price of the Limited, so why bother if the Limited works fine?*

3. A Toyota relay (Toy #90987-02012 or equivalent replacement) from a salvage yard for $6. The 4 prongs of the relay should look something like this: ||=

I suppose I splurged on the switch, but it was all plug and play...so no wiring headaches.


Swapping out the switch was fairly simple.
*There are 3 screws that hold the steering column fascia on; 2 of the screws are located on the front of the column, behind the steering wheel (have to rotate steering wheel to see) and the other is located below the column.
*Remove the column fascia and unplug the connector to the switch.
*Remove 2 screws holding the switch in place and remove gently.
*Install new switch in reverse order.

For the relay installation, it's a matter of reaching behind your fuse box (located in the lower left side of your dash) and plugging the relay into the free socket on the back of the block. There is an open socket on the back side of the fuse block, along the middle of the right edge. Plug it in and go.
*getting it lined up took the longest time out of everything else, only because you can't see what you're connecting to.

Installing the OEM fog lights didn't take much time either.
*Unscrew the 3 screws that secure the plastic guards to the bumper where the fog light should go.
*Pull the guards back and you'll see the factory connectors taped to your bumper.
*Reach up and pop out the stock covers to reveal the fog light opening.
*Align your OEM fog light with the opening and make sure the adjustment screw pops right into the bumper fixture.
*Plug your factory connector to the lights.
*Adjust your lights before you close up everything; adjust using the adjusting screw on the fog light housing.
*Reattach the plastic guards and screw everything in.

Turn on the ignition and switch on your headlamps/fogs. With this setup, fogs will only work when your headlights are on. The auto headlights feature does not work, if you do buy the Limited switch, but I can live with that.

Hope that this is useful to you!

Thanks to gtswanson who provided me with all the parts and install info.
 

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I'm pretty sure to follow your directions as you explained but it did not work...
I Got the dimmer switch, relay and fog lights assembly but they do not turn on? Is there any extra step I could be forgetting additional to your instructions?
 

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Spinn;

Way to easy to do. I followed your instructions and it took me 1.5 hrs to get all done. I found that taking a pic with my phone of where the relay should go helped me figure out how to approach it. Took me 2min to plug in the relay. My lights look a little lose, but I think I just need to adjust the up/down aiming.

Turn Signal Switch $57
Fog lights from E-bay $40 (which included all the wiring/switch)
Relay $7

Later;
 

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I'm pretty sure to follow your directions as you explained but it did not work...
I Got the dimmer switch, relay and fog lights assembly but they do not turn on? Is there any extra step I could be forgetting additional to your instructions?
I know this is very old but I got the same problem with you. After a few hours looking for wiring diagram and using multi-meter to check, i found a way out. Basically the 2001 SR5 doesn't have the wiring from the switch to the relay box. You will need to add 2 wires. 1 wire from PIN#11 on the switch to the fog relay box, connecting to PIN#9 on 1B. The second wire is from PIN#10 on the switch to GND.

Hope this helps someone else who looks for the OEM style fog light upgrade for SR5.
 

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lol i have a 2001 sequoia sr5 and i ran the wiring from the combination switch pin 11 to the relay box pin 9 and when i ground pin 10 it just triggers the high beam
 
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