4th brake light question - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

drz400dude · 11-10-2017, 07:16 PM

I am driving a little ways to buy a valenti 4th brake light off a guy. Is there a quick way to test to make sure it works before I buy, besides installing it?

StanBo · 11-10-2017, 07:21 PM

12v power supply that runs off 110v and a pair of alligator test leads?

drz400dude · 11-10-2017, 08:04 PM

Quote:

Originally Posted by StanBo

12v power supply that runs off 110v and a pair of alligator test leads?

I was thinking touching the wires up to the battery, but I just wasn't sure if the brake lights ran off 12v or if there was something different in the circuitry in the car. Or which wires. From the pic there seems to be multiple wires. I haven't messed with the 4th BL yet so I'm not sure how it works.

drz400dude · 11-10-2017, 08:09 PM

This is what the wiring looks like...

StanBo · 11-10-2017, 08:48 PM

Without reference I would think tapping them to the battery would work. It is 12v as what they should be getting when operated.

HachiRolle · 11-10-2017, 09:06 PM

Just a heads up, that’s not a Valenti.

sharpsicle · 11-10-2017, 11:05 PM

Yes, 12v direct from the battery will work with the proper polarity.

And also, Hachi is right, it's not Valenti, it's GCS. Worth at least half as much as Valenti

wolffbite · 11-10-2017, 11:42 PM

Yup, smoked GCS not a valenti.

Does it come with the rest of the wiring harness? Otherwise you will have to cannibalize your stock reverse harness and repin. All guides online for a new unit with the harness are already pretty bad, so it might be more trouble than it's worth.

drz400dude · 11-11-2017, 01:01 AM

Thanks for the heads up everyone. I just saw the "V" shape and didn't think twice. You guys are def right. I wonder if this guy knew and was trying to BS or what.

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11-10-2017, 07:21 PM	#2
StanBo Member Join Date: Aug 2012 Drives: 2018 BRZ ~ 1992 Miata Location: Central New Jersey Posts: 13 Thanks: 6 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	12v power supply that runs off 110v and a pair of alligator test leads?

11-10-2017, 08:48 PM	#5
StanBo Member Join Date: Aug 2012 Drives: 2018 BRZ ~ 1992 Miata Location: Central New Jersey Posts: 13 Thanks: 6 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Without reference I would think tapping them to the battery would work. It is 12v as what they should be getting when operated.

11-10-2017, 09:06 PM	#6
HachiRolle Member Join Date: Jan 2017 Drives: 2017 Toyota 86 Location: Los Angeles Posts: 60 Thanks: 19 Thanked 58 Times in 30 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Just a heads up, that’s not a Valenti.

11-10-2017, 11:05 PM	#7
sharpsicle Certs You Dont Care About Join Date: Mar 2017 Drives: 2013 Galaxy Blue BRZ Location: Milwaukee, WI / Tampa, FL Posts: 230 Thanks: 34 Thanked 131 Times in 80 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Yes, 12v direct from the battery will work with the proper polarity. And also, Hachi is right, it's not Valenti, it's GCS. Worth at least half as much as Valenti

11-10-2017, 11:42 PM	#8
wolffbite Just the tip Join Date: Mar 2017 Drives: 2017 DGM BRZ Location: BC, CANADA Posts: 633 Thanks: 921 Thanked 881 Times in 378 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Yup, smoked GCS not a valenti. Does it come with the rest of the wiring harness? Otherwise you will have to cannibalize your stock reverse harness and repin. All guides online for a new unit with the harness are already pretty bad, so it might be more trouble than it's worth.

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