GS - 4th Gen (2013-2020) Discussion about the 2013 and up GS models

DIY: JDM Fog Light w/ OEM Switch

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Old 02-18-17, 07:46 PM
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PK_Celsior
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If someone has a shop in OC/LA or SD and there is a lot of interest I can show in person how I completed this process
Old 02-18-17, 07:50 PM
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Originally Posted by PK_Celsior
If someone has a shop in OC/LA or SD and there is a lot of interest I can show in person how I completed this process
did u have to add another wire to go inside the car main ecu? that's the point Im stuck right now. the wiring diagram shows 1 wire going from relay box (engine) to the main ecu (inside the car).
Old 02-18-17, 08:25 PM
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Originally Posted by richard203
did u have to add another wire to go inside the car main ecu? that's the point Im stuck right now. the wiring diagram shows 1 wire going from relay box (engine) to the main ecu (inside the car).
No, you do not have to add another wire to go inside the car main ecu. If you tap the wire from the stalk to the main ecu you can use power from the engine relay fuse box.
Old 02-18-17, 09:22 PM
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Originally Posted by PK_Celsior
No, you do not have to add another wire to go inside the car main ecu. If you tap the wire from the stalk to the main ecu you can use power from the engine relay fuse box.
so overall you just have to add 1 extra wire to this whole project which is the stalk to the main ecu? if so I think I got it then. since the only not sure part is if the relay box to the main ecu has prewired or not. if you say no ned to wire any wire to the inside then I guess it have the wire from the relay box to the main ecu then.
Old 02-18-17, 11:03 PM
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Originally Posted by richard203
so overall you just have to add 1 extra wire to this whole project which is the stalk to the main ecu? if so I think I got it then. since the only not sure part is if the relay box to the main ecu has prewired or not. if you say no ned to wire any wire to the inside then I guess it have the wire from the relay box to the main ecu then.
I added four wires in total to make everything work. N28 connector had two wires one for ground and one for the main ecu. BA2 connector two positive wires tied together that will go into the fog light relay. If you can get the fog light symbol to illuminate on your dash you are on the right track.
Old 02-19-17, 12:18 PM
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Originally Posted by PK_Celsior
I added four wires in total to make everything work. N28 connector had two wires one for ground and one for the main ecu. BA2 connector two positive wires tied together that will go into the fog light relay. If you can get the fog light symbol to illuminate on your dash you are on the right track.
isn't the fog light + wire need their own separate wire for the ba2 connector since they have their own pin so why tie them together I guess u can tie them together??
Old 02-20-17, 08:12 PM
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Originally Posted by richard203
isn't the fog light + wire need their own separate wire for the ba2 connector since they have their own pin so why tie them together I guess u can tie them together??
You can separate them if you would like. I tied them together to keep it simple for wiring.
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Old 02-20-17, 08:23 PM
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Originally Posted by PK_Celsior
You can separate them if you would like. I tied them together to keep it simple for wiring.
alright thanks for ur help. i'll order the fog when my tax money come I have a good idea how to make this work.
Old 02-21-17, 03:28 PM
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Last question lol,do u know what pin do I use to connect it to the ecu?
Old 02-21-17, 06:05 PM
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Dang.. this is a lot of work to add fog lights.. was it worth it?
Old 02-22-17, 09:47 AM
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Originally Posted by eXtremeoak
Dang.. this is a lot of work to add fog lights.. was it worth it?
It's easy to add the fog light, it's hard to wire them with OE stalk and dash to illuminate.
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Old 02-22-17, 12:32 PM
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Any1 know the pin size for the ecu?
Old 02-23-17, 12:01 AM
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Originally Posted by richard203
Any1 know the pin size for the ecu?
I do not know the pin size, I just jammed the wire in and zip tied it. Buying all the pins tend to be a bit expensive and each connector has their own special pins.
Old 02-23-17, 12:10 AM
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If anyone needs help with this installation feel free to pm me for contact information. I have been able to walk a few people through this process over the phone with success.
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Old 05-29-18, 10:37 AM
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Has anyone attempted and was successful doing this on a 2016+ model? The BA2 harness appears to be different...


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