Wiring OEM fog lights and oem switch into van

[bikerjosh]

So trying to figure out wiring on adding fog lights and a switch. While I have wired a lot of the three wire accessory switches, the Toyota switch has four leads coming off it. Anyone know where the different wires go? My FSM (from an 87') seems to show only two wires coming from switch? Switch is from an 89'.

Also assuming I can use a traditional 30 amp electrical relay for this, please correct if I am wrong?
thanks for the assistance -Josh


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[JDM VANMAN]

Josh take a look at posting #4 in this thread below, Tim has posted a picture of the light relays from the 87' FSM and an 89' FSM, the 89' shows where the relay I see located but it doesn't have a full layout of how it's wired. Do you have a 89' FSM?

http://www.toyotavantech.com/forum/showthread.php?521-cornering-light-relay&highlight=Fog+light+relay


I took a picture a while back of a 30amp fog light switch with some wiring diagram showing how the wires run. This is just for reference cause I don't know anything about wiring and haven't had a chance to locate my OEM factory fog light switch to see if it actually has 5 wires coming out as well.

Not trying to send you off the right track so take this with a grain of salt, could be 2 totally different types of applications.


If you have yours available maybe pull the pigtail off and check it out?

JDM

[bikerjosh]

My fog light switch is from an 89' versus an 87'. I don't have access to a 88-89 FSM, but I would be willing to bet in that edition it would show four leads coming off the fog light switch, versus only two shown in my electrical diagram?

So looking at the link you directed me to looks like there was a relay for the 88-89 vans fog light circuit, but no such relay in the 87.
Any chance you can post the electrical schematic for the fog light circuit from the 88-89 FSM?
thanks Josh

[JDM VANMAN]

Sorry I don't have a 89' FSM at this time to post photos of how the wiring runs.

I just went online and found a 88' & 89' FSM and a 89' EWDSM (Electrical Wiring Diagram Service Manual) and ordered all 3 of them, they should be here in about a week.

[JDM VANMAN]

Ok check this out, I found this right on our forum-

http://toyotavans.org/community/tips/manual/028_ELECTICALWIRINGDIAGRAMS.PDF

check out page 12 and it shows the fog light switch and fog light relay.... even though it's from a 87' manual I think this might be what your looking for.

[bikerjosh]

That looks like the same picture I posted at the start of this thread. Manual I have is an 87', but in the diagram it appears( could be reading it wrong) that the switch only has two wires coming from versus 4 wires on the switch I have. Still confused. -Josh


Ok check this out, I found this right on our forum-

http://toyotavans.org/community/tips/manual/028_ELECTICALWIRINGDIAGRAMS.PDF

check out page 12 and it shows the fog light switch and fog light relay.... even though it's from a 87' manual I think this might be what your looking for.

[JDM VANMAN]

Awe man I just looked at your posting and it does look like the same thing... sorry about that.

Check out (for reference) this other photo I found of a 4 wire fog light switch-

[bikerjosh]

@JDM VANMAN, no worries thanks for the help. Been working on about 2-4 cumulative hours of sleep for the last 10 days since my son was born so I had to read it a few times to see if I was missing something. LOL.
Thanks again -Josh

[Carbonized]

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looks the same to me in 89

[bikerjosh]

ok, so am I reading the electrical schematic wrong? Shouldn't the schematic show 4 wires coming off the switch? I see 4 off the relay as I would expect, but not switch. Probably a good time to mention I am self taught in automotive electrical, and consider myself ok since nothing I have wired has ever caught fire. :rol:
Josh

[Carbonized]

I' am far from an electrician myself. I consider myself more of a fireworks expert, but could this be just a simple on/off "single throw" switch? Meaning it only cut the hot side (+). I can't see why you would need more unless each bulb had it's own circuit, or some thing like a blinking function or two different intensity etc.

[originalkwyjibo]

The other two wires should be for the switches illumination circuit. If you look at the back of the switch in the photo you can see the round, white bulb socket. Fog light circuit in, fog light circuit out, light bulb power, and light bulb ground. 4 wires. :thmbup:
http://www.toyotavantech.com/forum/attachment.php?attachmentid=4845

[originalkwyjibo]

If you look in your schematic under "tail lights and illumination" it shows a bulb circuit for the fog light switch.

[Carbonized]

The other two wires should be for the switches illumination circuit. If you look at the back of the switch in the photo you can see the round, white bulb socket. Fog light circuit in, fog light circuit out, light bulb power, and light bulb ground. 4 wires.

:doh: That's why you are paid the big bucks!:clap:

[bikerjosh]

yeah what Carbonized said. :dance2:Thanks for all the help. -Josh

[JDM VANMAN]

Nice you got it:thmbup:

So what about the relay that's showing up in the 89' but not in the 87', are you gonna have to wire one in separately?

JDM

[originalkwyjibo]

:doh: That's why you are paid the big bucks!:clap:
I think someone forgot to send me the check.. Lol
Just glad I could be of some help. That is why we're all here after all.

[Carbonized]

So what about the relay that's showing up in the 89' but not in the 87', are you gonna have to wire one in separately?

I see a relay on both....:cnfsd: The confusing thing to me, is the switch. Shouldn't it be showed as a "double throw" with one side for it own lighting?

[Ace MM]

Probably a good time to mention I am self taught in automotive electrical, and consider myself ok since nothing I have wired has ever caught fire. :rol:
Josh
Amateur :LOLabv:

I see a relay on both....:cnfsd: The confusing thing to me, is the switch. Shouldn't it be showed as a "double throw" with one side for it own lighting?
A SPST switch may still be lighted (jumpers on the pic for powering the light)
The switch should operate the relay which powers both lamps, GW in the schematic.

[Carbonized]

And a raise for AceMM! :thmbup:

[bikerjosh]

Ok, so making some progress on this project, wiring harness done, relay mounted, just need to connect the switch wiring wise.
Went to pop the new bulbs in H7 (not sure if I got that from owners manual or internet) anyway bought both a set of halogen and LED bulbs to see which I liked better. Both are too big to drop into the base for the light.

Anyone running fogs who has replaced the bulbs? If so what did you use?

I'm in the middle of cutting the outer metal flange of bulb w/dremel to get them to drop into housing. Didn't want to modify the housings as long as it took to find some.

Thanks Josh

Edit: got impatient and went ahead with it.
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bulbs new, new modified, OEM

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Just had to open up the housings a little.

[JDM VANMAN]

So are the H7 bulbs the correct bulb but for some reason just too big?

How do they look?

Thank you:thmbup:

JDM

[bikerjosh]

That was the closest bulb I could find to the original. Look good, but yellow against the LED headlights and under the bumper LEDs. Eventually I'll try and find an LED replacement that will fit so the color temp of lights will be closer.
I'll post a pic later.-J

[Carbonized]

Forget how they look! How do they work in the legendary Californian fog? :roflmao::roflmao:

[JDM VANMAN]

Carbonized you always have good jokes!!:roflmao::rol::roflmao:

But as for the bulbs (lamps- proper electrician term) which brand did you use, I was search on line and but the ones I’ve noticed aren’t of any specific name brand, for example-

https://www.ebay.com/itm/2x-H7-4300K-Yellow-LED-Fog-Driving-Light-2323-80W-High-Power-DRL-Bulb/301920960105?fits=Make%3AToyota&epid=1364908992&hash=item464be43e69:g:QYwAAOSwdGxXIybC&vxp=mtr

and they’re cheap of a set. Being that they are 80w LED’s and the housing shows that it accommodates a 12v 35w bulb is that ok? Sorry I don’t know how all that electrical stuff works.

Thank you

JDM

[JDM VANMAN]

Bikerjosh,

I’m just adding to your write up another option that can be used with slight modifications-



I went with these Noyka H3C Halogen Nok7659 bulbs because they seemed to be the closest to OEM with very slight modifications.
http://i.imgur.com/IjTwfXj.jpg
http://i.imgur.com/JHPXFAp.jpg






Both bulbs-
OEM is clear white 35w bulb
A/M is yellow 55w bulb
http://i.imgur.com/QVq1WLQ.jpg


http://i.imgur.com/w3gsWC8.jpg


Side view
http://i.imgur.com/ZkHw8ai.jpg
http://i.imgur.com/OweW1AQ.jpg


Side by side A/M bulb is fatter at the base
http://i.imgur.com/e1nCFEB.jpg


Housing does need slight modification, crimp the piece that’s boxed in red so the bulb can drop all the into housing.
http://i.imgur.com/SDwfJxA.jpg


This piece on the bulb (red box) is to small so the housing needs to be modified.
http://i.imgur.com/EDRl3jA.jpg


This is the OEM bulb clamped down, once the housing is modified the A/M bulb should drop in place and the clamp will hold the bulb in place even though it has a fatter base.
http://i.imgur.com/rBUakLg.jpg

[hunziker87]

I just replaced my fog light bulbs and the H3C should drop right in. Do a search on eBay and you will get a handful of options.

[JDM VANMAN]

Which brand did you use? We like aftermarket first time fit and no modifications!!:thmbup:

JDM

[hunziker87]

As far as brand goes... China? I got them from this eBay dealer

https://m.ebay.com/itm/HALOGEN-H3C-64146BC-55W-3000K-TWO-BULB-FOG-LIGHT-LAMP-JDM-REPLACE-STOCK-QUALITY-/131547822469

They were 9 bucks, fit right up and haven’t had any issues with em.

[JDM VANMAN]

Good deal on price, I paid double. They look like the same as what I got but mine aren’t seating in the housing completely without pinching the spot that’s highlighted in photo up above.

Nice job:thmbup:

JDM

[JDM VANMAN]

So I removed the entire headlight assembly that holds the lights to try and remove trim ring screws with no luck. But I did find that my LE that didn’t originally come with fog lights has a pre-wired pigtail for fog-lights!!



http://i.imgur.com/roe90Ca.jpg


JDM

[armorrell]

Oh
So I removed the entire headlight assembly that holds the lights to try and remove trim ring screws with no luck. But I did find that my LE that didn’t originally come with fog lights has a pre-wired pigtail for fog-lights!!

Oh man! I hope mine has those connections when I open it up!!

[JDM VANMAN]

Oh

Oh man! I hope mine has those connections when I open it up!!

Not only do I have the pigtail wire for the fog lights but upon further inspection I found the foglight wiring relay in a cluster of relays located behind the panel that’s right above the right knee!!

JDM

[Flecker]

Oh

Oh man! I hope mine has those connections when I open it up!!

You probably will... my bare bones Cargo Van has the pigtails also. As well as a relay.

[Jdelgado]

Incase anyone is looking for new fog bulbs, these are a perfect fit + very bright.
https://www.amazon.com/H3-Newest-Version-CSP-Chips-Lights/dp/B07FPPXYYQ/ref=sr_1_5?dchild=1&keywords=H3+LED+fog+light+3570&qid=1605124924&sr=8-5
1072510726

[89van]

Seems appropriate being the only thread, that I could find, about the fog lights on our Vans. So I have a functional pair (tested the bulb with a jumper wire, my van doesn't have the connections for foglights unfortunately) and I have a 5-pin switch from the rear defroster off of an LE van and an unknown condition relay from another van. I am assuming the job would be to simply get a suitable connector for the lights, if anyone knows of one other than a harness do let me know, tap into the fuse box and fuse it, wire it to a relay (supposedly theres already a relay meant for foglights in the vans but it is missing on those without foglights) and then the switch if I'm not wrong. Can't seem to pull a part number for the foglamp relay but maybe there is a compatible relay available? If not I have some square relays I might be able to rig up... I did test fit a foglamp to my van and it seems to line up good! IF anyone has any inputs, do tell as I would like to learn more, I will try to find an electrical diagram online somewhere for some additional help with this too. :thmbup:

[89van]

Alright, after some digging online I found an appropriate diagram for the defogger switch. Interestingly, it doesn't show pins #1 and #2 but it does show it does have a light inside of it as I assumed. Now whether or not it's good I'll have to see. For anyone curious, here's the diagram for the switch operation:

PNG:
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PDF:
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I too have an M3 Light Control Relay (Part #: 90987-01003) I nabbed too, although I've never tested a 3-pin relay before so I'll figure out if it's any good in the first place...

[89van]

I too have an M3 Light Control Relay (Part #: 90987-01003) I nabbed too, although I've never tested a 3-pin relay before so I'll figure out if it's any good in the first place...

According to the part #, it's a multi-use relay for the fog lights, A/C, headlights, tail lights, etc. which is good to know. One of the reasons I was severely confused looking this part up was the plug's butt connector was still stuck onto the relay pins so I was quite confused as to why my relay had only female connectors. As for testing the relay, should be straight forward now, hopefully. Looking at the butt connector, the plastic seems somewhat melted on pin #2 which is odd, might not be any good anymore then :no: and my digging online shows some OEM ones for about ~$13/piece or some sketchy looking new ones online for a third of the price not to mention a straight month long processing!!! Anywho, I'll test it and report back today on what I find.

[89van]

Relays good, now I'm onto the step of test-wiring everything together (Harbor Freight butt connectors will suffice, I'm planning to tap into the fuse box since it already has the fog light fuse anyways) which will be interesting. Consulting my new 1989 Factory Service Manual & Electrical Wiring diagrams to piece this together. Luckily I don't think I will have to pull any dashboard pieces since I can probably snake the relay into where I can put it and go from there. This'll be exciting since this will be the first time I've ever wired up anything on one of my own vehicles, let's see how it goes...

First things first, the salvaged/barely hanging on relay connector (ill take pictures tomorrow, lost daylight figuring out where is everything on my van and sizing up the components) fits questionably into my male ends, doesn't help that trying to crimp one pin down for a better connection resulted in it cracking slightly, might have to get new pins... or a new connector... and a foglight connector... or maybe a new van :silvervan::lol: kidding. As for my "Fog light switch" the female ends seem to be quite cramped and I had to take some of the insulation off of one to squeeze all 3 in there.

For the obvious power routing I'll draw up a diagram from what I can condense from the factory manual in my test wiring... as always, if anyone has any input, do let me know. I'll try and use some larger gauges of wiring in advance but I'll probably need more since most of it I took from random sections of the harnesses in a 2006 Sienna. I'll attach some pictures after this post for more information surrounding the fog lights as I've found via my FSM.

[89van]

Location of the fog light relay, underneath your radio area
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FSM locations of relays/computers
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The blanking plates, quite easy to take out, just worm your hand up and behind and gently push them out
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[89van]

All quiet on the foglight thread... until now! Got a motivational burst to continue it and boy did I make good progress today. Got the whole wiring (Non-OEM mind you, but my way will work!) system drawn out and only now is to take it into action!

Along the way, found a few nifty points for ground which you can see here:

1. Ground point for my "Foglight" switch (It's a rear defroster switch, but I figured out which pin does what, exemption of pins 1 and 2 since they werent brought up in any wiring diagrams, and it'll do, fit's loose in my van's slot for the switch since the tabs are busted on it but maybe some tape will do...) off of this mounting bracket for something with the dashboard, you can see it through the radio panel's slots! Now if this is a good ground is another question, but we'll see once I have everything wired in.
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2. My revised plan of attack, with my original cluttered one on top. Sure, it's not OEM but it goes over the major points: Fusebox, tapping off the battery for power (Originally I was going to tap power from the fusebox but I can't seem to figure out where power comes in to it, so I'll just tap off the battery; planning to run the power wire through the passenger's side carpeting, unless someone has any ideas for that!) going off the pre-installed oem foglight fuse, and the little things inbetween. I think it's pretty solid tho! :thmbup: Also, for the junction box, pin 5 is crossed out since it does nothing on my van and it does something in the electrical diagram manual, but what exactly is unknown to me so pins 3 and 4 will do obviously... Switch is explained in section 1 and here too on the right.
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3. The work of course! I'm a tall guy, so having to scrunch down low to do anything is displeasing, but for the Van's credit at least it's relatively easy to access once you're down there! I opted to shove my new wires through the OE weatherseals in the lights which worked out in my favor, aside having to undo too many layers of electrical tape. I dropped the glove box since it's essential to also drop the circuit opening relay up there to wiggle the fuse box out of it's two brackets and to remove the relay of course (Don't forget to re-install this or your van won't start, ask me how I know :doh:) so you can get a better look behind the fuse box to spot your fog light fuse socket from the back. Opted for 14 gauge wire since it's just the right size, and that's all I had too :wnk:

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I will definetly update this tomorrow, hit a roadblock with the pins on the fuse box, my little solderless wire solutions aren't small enough to fit in there so I will have to do some research to find the proper size that will work here, see ya for now! :wave2:

[89van]

Dam it, first image didn't werk. Try again mayhaps??
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[89van]

Right on folks, on with the results of my wiring: Only ran into ONE hiccup; I put the power out wire on the wrong side of the plug on the back of the fusebox :doh:as well as NOT disconnecting the power when I was feeding the power out wire to the switch and popped the fuse :doh: buuuut other than that...

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:)>::)>::)>: Works like a charm now, and of course the switch lights up too which is a bonus! Although the switch is just held in by the wires, will need to figure out a good anchor system for it...

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But anyways, I might've deviated from my initial diagram a bit but here's how it works in detail:

I tapped off of the battery terminal, as seen here,

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and then ran it under the carpeting along the rear hump, then tucked under the velcro patch by the rear fan vent, and ran it by the passenger's seat and up the floor to the fusebox. I used some special tinier-than-normal female connections from Ace Hardware, I think they were 1.86? something which is necessary here since the male plugs on the fusebox are real small. ALSO, I slightly spread the female connections open with a tiny screw driver to make them fit snugly on and not deathgripping those tiny old plugs! Note to self: Squeeze the insulated connections tighter as they like to come undone when unplugging them for whatever reason... :slap:

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Here, power flows in from the right and onto the switch on the left where the switch is. Thankfully, my ground on the steering cover mount? whatever it is worked for the switch since the bulb lights up just fine, and then I spliced the feed wire to the two line-ins to the foglights... Dunno if you can see them on the bottom last photo, but I used a 3-wire splice to join them, also from Ace Hardware. I like Ace Hardware, they've got everything and nice staff too!!! :thmbup: Not sponsored btw lol :dance2:

The ground worked marvelously, but next time I should use a little less ground wiring, had to wrap up the extra length with lots of electrical tape to the bumper mount. Very glad this is working out in my favor of course, but obviously without doing some homework of what the hell anything electrical is, I would've not done this at all without the factory electrical diagrams!!! :wnk:

Anywho, I'll finish buttoning her up tomorrow, lost daylight to drop the bumper and attach the shrouds and headlight buckets. See ya then, TVT! :wave1::silvervan:

[89van]

Good Morning folks, thought I'd add some additional photos I took with one of my newer cameras last night :)>::silvervan:

Also, just now I thought "Man, I should've wrapped my external connectors with electrical tape..." but I already buttoned everything up so, we'll see how the occasional sprinkle will do. I still need to electrical tape up the rubber weatherseals for the light wiring too...

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Real proud of the first photo's composition, I think it's quite good!!! :dance1: