Installing JDM rear fog light as a brake light

DeusExMaxima · 01-13-2022, 02:17 AM

I have a 2010 roadster and purchased the Nissan JDM rear fog light. I want to use it as a 4th brake light. I notice there is a wire harness that connects to the light. I researched the install but didn't find anyone who used the original harness and spliced it into the brake light circuit. I imagine the harness goes up towards the left tail light. I read it continues toward the steering wheel where an orm fog light switch would go. Could someone guide me to a link or point me in the right direction? Thanks in advance.

cooltoy · 01-13-2022, 12:33 PM

I would imagine that you want to install it like an EvoR light.

DIY: EVO-R Foglight Install

DeusExMaxima · 01-13-2022, 04:30 PM

Quote:

Originally Posted by cooltoy

I would imagine that you want to install it like an EvoR light.

DIY: EVO-R Foglight Install

That install is the typical " run wires up into the car" install. I believe I can use the wires already in the car, but can't find anyone who has done this.

BORNGEARHEAD · 01-13-2022, 06:51 PM

Quote:

Originally Posted by DeusExMaxima

That install is the typical " run wires up into the car" install. I believe I can use the wires already in the car, but can't find anyone who has done this.

You can't. I attempted to use the factory connector hoping that I could use Consult III to "turn it on" but it doesnt work. We don't have the harness for the switch/button.

I ran mine as a 4th tail light and just tapped into the license plate connector for ease.

DeusExMaxima · 01-13-2022, 11:41 PM

Quote:

Originally Posted by BORNGEARHEAD

You can't. I attempted to use the factory connector hoping that I could use Consult III to "turn it on" but it doesnt work. We don't have the harness for the switch/button.

I ran mine as a 4th tail light and just tapped into the license plate connector for ease.

That's because it's disconnected on the other end by the steering wheel. I'm trying to determine if I can use the existing wire loom to cut and tap into the left tail light.

k67p67 · 01-14-2022, 02:13 PM

You will need to tap into one of the tailight harnesses. Follow the iJDMTOY DIY.

JARblue · 01-13-2022, 05:04 PM

Just splice into the taillight on the driver side. Plenty of people have done it.

https://www.instructables.com/Instal...h-Brake-Light/

viiv · 01-15-2022, 09:46 PM

Would you want to be the first to try to simply swap your left American stalk with the OEM left stalk from a Canadian Z and see if it is plug and play?

DeusExMaxima · 01-25-2022, 06:42 PM

Quote:

Originally Posted by viiv

Would you want to be the first to try to simply swap your left American stalk with the OEM left stalk from a Canadian Z and see if it is plug and play?

Sure. No one has done it yet? Where do I get one?

viiv · 01-28-2022, 02:19 PM

Quote:

Originally Posted by DeusExMaxima

Sure. No one has done it yet? Where do I get one?

Ok, called the local Nissan dealer here. Price is $460 Canadian dollars. Part number is 25560-1EA1E. It's one unit that comes with both the left hand and right hand stalk. Spoke with a tech who said it should be plug and play, as the harnesses (at least in the later years) between the US and Canadian models are exactly the same. He said, the fog light has fuses, not sure if they are installed in the USA model, but if not you would just have to install the fuses in the fuse box.

DeusExMaxima · 01-29-2022, 02:37 AM

Quote:

Originally Posted by viiv

Ok, called the local Nissan dealer here. Price is $460 Canadian dollars. Part number is 25560-1EA1E. It's one unit that comes with both the left hand and right hand stalk. Spoke with a tech who said it should be plug and play, as the harnesses (at least in the later years) between the US and Canadian models are exactly the same. He said, the fog light has fuses, not sure if they are installed in the USA model, but if not you would just have to install the fuses in the fuse box.

Great info.. thank you. That is pricey for a switch and I do want it to work as a brake light. I would consider a used switch but not a new one if I went that route.

SeeThruHead · 01-25-2022, 08:48 PM

wouldnt that just enable it as a fog light? don't you want it to work as a brake light...?

Lannyl81 · 01-29-2022, 06:53 AM

There is only one way to get the rear fog lamp to function as a 4th brake light and that is to tap into the brake light wiring harness at the rear light using a new harness between them.
The factory wire harness at the rear fog lamp is for....gee....a rear fog lamp. To make a fog lamp requires either an easy wiring modification and a switch or swapping the combo switch with the one that is listed above. If going the combo switch swap, to be 100% complete, the instrument panel needs to come out so that an LED can be soldered in place to illuminate the rear fog lamp indicator.
There is one person on here that has done this and did a write-up on it. Quite expensive in $$$ and time to do so. But he probably has the ONLY USA 370Z with a factory rear fog lamp.

DeusExMaxima · 01-31-2022, 12:44 AM

I tried tapping in to the brake circuit and it blew the fuse. I tapped into the green wire of the brake light circuit

DeusExMaxima · 01-31-2022, 01:37 AM

The picture shows the rear sub harness and the drivers side brake/tail light harness. It's a bit cramped for space, but it's better than adding a whole new harness to the car!

01-13-2022, 02:17 AM	#1 (permalink)
DeusExMaxima Base Member Join Date: Feb 2015 Location: Southern California Posts: 80 Drives: 2010 red roadster Rep Power: 6721	Installing JDM rear fog light as a brake light I have a 2010 roadster and purchased the Nissan JDM rear fog light. I want to use it as a 4th brake light. I notice there is a wire harness that connects to the light. I researched the install but didn't find anyone who used the original harness and spliced it into the brake light circuit. I imagine the harness goes up towards the left tail light. I read it continues toward the steering wheel where an orm fog light switch would go. Could someone guide me to a link or point me in the right direction? Thanks in advance.

01-13-2022, 12:33 PM	#2 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,991 Drives: 14 PW 370Z S/T MT Rep Power: 243722	I would imagine that you want to install it like an EvoR light. DIY: EVO-R Foglight Install __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

01-14-2022, 02:13 PM	#6 (permalink)
k67p67 Enthusiast Member Join Date: Oct 2016 Location: Rancho Cucamonga, CA Posts: 312 Drives: 2017 Nismo Tech 6MT Rep Power: 3937	You will need to tap into one of the tailight harnesses. Follow the iJDMTOY DIY. __________________ SOLD2017 370Z Nismo Tech 6MT PART OUT IN PROGRESS Work \| Motordyne \| Powertrix \| Swift \| Michelin \| Takeda \| Hotchkis \| RJM \| Voodoo13 \| SPL \| SPC \| Z1 Motorsports \| ZSpeed \| Morimoto \| Craft Square

01-13-2022, 05:04 PM	#7 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 44 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684441	Just splice into the taillight on the driver side. Plenty of people have done it. https://www.instructables.com/Instal...h-Brake-Light/ God-Speed and cooltoy like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

01-15-2022, 09:46 PM	#8 (permalink)
viiv Enthusiast Member Join Date: Jun 2019 Location: Montreal Posts: 294 Drives: 20 Nissan 370Z PR M6 Rep Power: 34016	Would you want to be the first to try to simply swap your left American stalk with the OEM left stalk from a Canadian Z and see if it is plug and play? JARblue and cv129 like this. Last edited by viiv; 01-15-2022 at 09:53 PM.

01-25-2022, 08:48 PM	#12 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23498	wouldnt that just enable it as a fog light? don't you want it to work as a brake light...? __________________ My Build thread STH Build Plan Thread Images too big fix here

01-29-2022, 06:53 AM	#13 (permalink)
Lannyl81 Base Member Join Date: Jun 2021 Location: Tucson Posts: 58 Drives: 2018 370Z Sport M6 Rep Power: 4	There is only one way to get the rear fog lamp to function as a 4th brake light and that is to tap into the brake light wiring harness at the rear light using a new harness between them. The factory wire harness at the rear fog lamp is for....gee....a rear fog lamp. To make a fog lamp requires either an easy wiring modification and a switch or swapping the combo switch with the one that is listed above. If going the combo switch swap, to be 100% complete, the instrument panel needs to come out so that an LED can be soldered in place to illuminate the rear fog lamp indicator. There is one person on here that has done this and did a write-up on it. Quite expensive in $$$ and time to do so. But he probably has the ONLY USA 370Z with a factory rear fog lamp. Last edited by Lannyl81; 02-05-2022 at 09:33 AM.

01-31-2022, 12:44 AM	#14 (permalink)
DeusExMaxima Base Member Join Date: Feb 2015 Location: Southern California Posts: 80 Drives: 2010 red roadster Rep Power: 6721	I tried tapping in to the brake circuit and it blew the fuse. I tapped into the green wire of the brake light circuit

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