Fog Light Wiring

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Joined
Jun 8, 2019
Threads
2
Messages
4
Location
San Diego, CA
Trying to help a friend with his 200 series. He wants to activate his aftermarket Baja Designs Fog Lights with his factory fog light switch on the left hand lever. This way they'll shut off when he turns the vehicle off and turn on. Here's what I've found so far:

- Tried to tap the "FR FOG" 15A fuse inside the fuse box. When using an add-a-fuse in this spot I've found the circuit is permanently in the ON position regardless of the position of the fog light switch.
- He already has the aftermarket fog lights installed and wired up to his sPod Bantam, so determining which plug is for the factory fog light is a challenge. Additionally, we're using the factory signal to activate a trigger on the sPod Bantam, so we're not tapping the circuit directly to power the fog lights. There's a connector tucked under both sides of the bumper that's a maroon color with two wires (green and white) which I assumed are the factory fog connector. I tried testing the connections with a multimeter, but neither are getting any voltage regardless of the fog light switch position.
- I pulled the FR FOG relay and checked resistance across terminals 3-5. The resistance is normal, so the relay appears to be good.

I went ahead and tapped the fogs into the lower headlight fuse in the fuse box, so now they come on when the headlights are on, but it would be nice to have them tapping the factory fog lights.

Can anyone point me in the right direction for the factory fog plug so that I can wire these up correctly? Thanks!
 
The wires vary between years. Check the treads on the ARB front bumper installs and the wires they used.
 
This is for a 2013. 2008 is identical other than the pin numbers at the fog bulb sockets themselves being inverted.

FFL.jpg


Looks like if the tail light relay isn't activated you get no + side for the BCM to trigger ground and activate the fog relay.

If the sPod bantam can use - as a trigger, and you wanted to bypass the stock fog relay, or maybe leave stock fogs there and operating, find the red wire populating EA2 pin 34 (I'd assume 2008-2015 are the same.. 16+ may be different) going to fog relay pin 1. EA2 is inside the truck. Top of the three large square connectors behind the driver's kick panel. Probably easier to run your - trigger into the lower portion of the under hood fuse/relay block.

Alternately if the sPod needs + signal tap the green wire going to the stock fogs.
 
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