Yet another Fog On Anytime

Not responsible for anything, this is for infotainment purposes.


Modification for Fogs On Anytime after IGN with no cutting into OEM harness and having them come on after a few hours or tapping into sensors or engine control harness.


This is as follows:


Relay Wire Harness (8224104030)

Junction Block (8267130360)



1 slot matching connectors (male 90980-10870 female 90980-10871)



The Relay Wire Harness has 3 connectors; T11, 1M and 1L



Remove tape and L-shape holder on Relay Wire Harness.



Open the terminal lock on connector 1L and remove all terminals. (8)


Open the terminal lock on connector 1M and remove all terminals. (3)


Open the terminal lock on connector T11 and remove all terminals except #8 and #9. Using a pair of the wire sets removed on T11; assemble a female to female jumper wire. (Remove, measure, cut, strip, place heat shrink, solder, shrink)


Insert built jumper into female one slot connector and insert other female terminal into slot 3 on connector T11.


Remove battery Negative connection.


Remove nut and ring terminal of battery connection on fuse & relay junction block.


Disconnect connectors EB1, EA1 and 2A Top.





Disconnect 2A from 2B. It’s on tight. Using long nose pliers works. Bite and pull straight up. Don’t drop or misplace after removing.


Take apart fuse & relay tray from bottom cover.


Release a wire loom clamp towards the cab for more wiggle room.



Lift and hold fuse & relay tray to the following:


On connector EB1 slot 3 Remove male pin (lime green); release terminal lock above and lightly pull from below. Insert into male one slot connector. Insert male end of wire #8 from T11 in slot 3 of EB1.




On connector T11 place male end of wire #8 into slot 1 or 4 of EB1 [This will be an additional IGN source on EB1][More on IGN Tap thread]



Remove pin 21 (Fog Relay pin 85) from connector 2A and place in slot 10 of T11 (IGN)


Remove pins 19, 20 & 22 from connector 2A and place in slots 1, 6 and 7 of T11. Leave slot 2 open in case you need to make fogs back to OEM without much hassle i.e. relocating them to their original connector 2A position.



Place junction block into T11.


Secure from movement with your choice of tape, straps, etc.


Place Relay & Fuse on bottom cover.


Close wire loom clamp.


Reconnect 2B to 2A and top 2A connector.


Reconnect EA1.


Place ring and nut back on battery connection to relay & fuse tray, tighten.


On connector EB1, open terminal lock and insert female terminal and wire in slot chosen before (1 or 4) for IGN tap to required mod at later date. (Can be done at another time)


Reconnect EB1.


Verify all connectors.


Keep vehicle remote near, reconnect negative to battery.


Test and Enjoy.


Parts:


One Slot matching connector (M&F) 90980-11146 [$5.31] and 90980-11147 [$3.18]

Junction block 8267130360 (turn signal short pin) [$5.83]

Relay wire (DTRL) 8224104030 [$15.76] {connectors and wires will be disassembled}


Tools:

10mm for negative terminal, deep socket for nut on fuse & relay tray post.

Micro flat tip tool and 2 small flat tip screwdriver.

 

Holy Shat! Looks involved and Complicated. What makes this way better than @nd4spdbh jumper method? Is there a benefit to doing it this way?

Great detailed informative post though.

 

A much simpler method can be found in my signature below. Mine just makes it so your fogs don't turn off with your highs. Everything functions normally otherwise so this is different than other methods.

 

Nice detailed write-up but... that seems like a hell of a lot of work just to have my fog lights on anytime.

 

Efficient..few tools...no cutting into OEM harness, not seen by Toyo Techs, and it adds source for IGN tap also hidden and plug and play so not just the fogs circuit is "enhanced". It's not different in function, it does the Fog -On-After IGN with not cut off with highs.

But easy prevails for you all....

 

For the simpleton's, follow the removal without adding anything, just remove pin 21 and insert into slot 12, and button it up. Works on 05 thru 15. Mine has been fine since '06.



Just remember to turn fog switch OFF when vehicle is OFF.
The 12 slot is tied into a post ignition test cycle which comes on and scares the unaware. (owner, wife, neighbors, police) Reason why I erased my prior posts...that and post thrashers.