Fog Lights

Well ! It turns out the two separate yellow lines are the Fog lights ground.
The A-1 is the white wire
The switch harness are spread under to the dash board. (See pictures !)
Still waiting for the relay to come and finish the installation this weekend.

 

The switch sticks out like that when mounted?

 

Yea! That is the switch provided by Jomico_0, the eBay seller.
It may look odd on the picture but its black color blend in with all other existing buttons.

I tested it with my potable 12 volts battery and verified that the blue line of the switch harness
is a positive trigger for fog relay 86.

 

Installation is completed with relay.
(One relay control both the DRL and the Fog lights.)
87a. DRL lights. (Normal Close)
87 Fog lights (Normal Open)
86 The Switch positive trigger (from switch harness)
85 car body ground/12 Volts negative.
30 12 Volts positive power from fuse box by using an Add-a-wire 10A fuse.

 

Same fog (from same manufacturer) but cheaper....prob best price I see but it's shipping from outside of us. I'm not the seller or have anything or any gain with this...I'm just passing on the info.

Prius 2016 Fog Light With DRL and Signal indicator (DHL/Aramex/EMS Shipping) | eBay

 

I wish I could have my factory fogs to be on rather than the headlights for dtrl

 

It used to be $200 free shipping...the seller changed it. The other one used to be $249... Oh well..

 

Finally got mine installed (no electrics yet). Key is to do the driver's side first because the windshield washer tube and tank is in the way on the right hand side and you have to work around and/or remove the tube. Took about 2 hours done by an in-law who is a professional mechanic and very familiar with the innards of Japanese cars--how to remove flaps and clips and the like. Also stuck on the chrome 'eyebrow' on each side to give a more complete look. Looks transformed especially the harmony with the indent line on the front fender and the headlights above. Well-worth the effort and cost IMHO (ebay supplier). Thanks very much to randomwalk101 and many others on this thread. Much appreciated!

 

Installed the eBay lights, red is DRL, white is Fogs, yellow was not used, black is ground.

I installed it without the switch, I had too much trouble trying to pierce the grommet as I did get the coat hanger through one time but wasn't able to get it through the other times that I tried as the time I did get it through, the wire slid on the coat hanger so it didn't go through.

I have both the white and the red wire hooked up right now so all lights come on when the car is on.

 

did you notice guys that fog lamps that are available have different parts nmber:
There are two.
OEM has: 81210-47030
Ebay: 99226 - 91002


Are they much different? want to install on my prius two. Wonder if I could change steering wheel shifters? get the ones with fog switch as two trim doesnt have such

 

Hey guys,

I have an extra set of 2016 - present Prius fog lights for sale if someone is looking to add fog lights to theirs.
I've been using a same set for over a year no without issue..I config it to be on constantly as long as the car is running.
This extra set is brand new.

For sale thread:
For Sale - 2016 - 2018 Prius fog lights | PriusChat

 

Thank you the write up to the installation process. It was great to see it as my fog lights arrived yesterday. Thank you again!

 

I just bought some fog lights for looks; I dislike the black inserts that my 2018 blue prius came with. They came with a wiring harness, and a switch for the dash, but I don't want to go through all the rigamarole to set them up this way.

I can, of course, leave them as inoperable, but is there a second best which isn't so complicated as a full install?
For example, can the fog lights be used as DRL lights, and go off when the headlights are put on? Or is it not suggested, or illegal, to have them on all the time?

 

Wire them up with a relay. If wired correctly, they can do what you want, come on when ignition On (Ready), and turn off when ignition Off or headlights turned On (lowbeam override).

Posted via the PriusChat mobile app.

 

Thanks so much for your reply ... do you happen to have a wiring diagram for that, and what sort of relay should I purchase?

 

Hi I hope some of you see this.. as I bought the same set for my 2018 ... I need some help with their horrible wiring diagram.
It is shown as the Black and white one same diagram. so I have 2 yellow wires - they are marked to directional. not sure where to tap in for that. Then 1 white wire, 1 red and 1 black wire - red positive black neg - white wire no idea (it does come from connector on both lights ? I did this on my 2015 it was much easier... could use some help on the 2018.