Anytime Fog Light Mod
I took an hour last night and knocked out the wiring mods to allow anytime use of the new fog lights. I followed the write-up on JA's 4Runner site here >
Toyota 4Runner Highlander Electrical Modifications Fog Light Mod
It is a pretty simple mod, but I executed it in a slightly different way than the write-up shows. I had a spare fog relay on hand which I used, and rather than just sticking the feed wire in the 10A TAIL fuse slot, I used a Bussman Add-a-Circuit fuse tap with a separate 7.5A fuse to the relay coil.
The additional step needed for 4Runners with DRLs isn't explained well, but after studying the EWD, basically what you're doing is giving the fog light switch access to a new ground point that is NOT controlled by the DRL module. I used a bolt to the right hand side of the DS foot well near the accelerator pedal that I checked for continuity to other body grounds.
Fog relay with bent prong at terminal 1, connected to fuse tap lead. Fuse tap inserted in 10A TAIL slot, with 7.5A fuse for new circuit. Original 10A fuse retained for TAIL functions.
Fog relay back in place...
The fuse tap will interfere slightly with the lid closing, so I cut out the spare fuse holders that were causing the interference. Now it fits like stock. I carry spare fuses elsewhere in the vehicle anyway.
The pics below show pin 16 on connector D8 at the DRL module under the dash, green wire w/black stripe. Cut this about an inch from the connector, tape off connector side, extend harness side with a length of wire sufficient to reach new ground point. The black wire w/yellow stripe taped off w/yellow tape is the one that gets clipped to disable DRLs... that was done years ago.
I did perform the continuity check as suggested in the write-up to verify the correct wire...
...continuity is checked between pin 16, in the D8 connector, and the number 2 coil connector in the fog lamp relay socket, with the fog switch on.
New ground above and to the right of the accelerator pedal...
Done deal...
Peekaboo!!! What's in the boxes?
Finally, a set of Cooper Discoverer STT Pros in 285/75r16 is on the way, thanks to the DTD Ebay sale. Yep, that's right... it might be the first time in history that someone on this forum has gone DOWN A TIRE SIZE. :scared: