Third Brake Light - using the Ford 7Pin plug ? for 2025-plus OEM module

[Q1svt]

Third Brake Light - using the Ford 7 Pin plug ? for 2025-plus OEM trailer module.

Looking to add a third brake light
Ford OEM Tow wiring for the 7 pin does not have a separate wire just left/right turn signal

In the MOOOOORE light thread 'Let's talk lights. How much lighting needed? I need suggestions.' @Gluestick shared 'diode dynamics C1R' wiring that splits before plug, good product ... but diode dynamics is having error codes issues on Ford Bronco modules FROM mid 2024 - current

Yes, using a 7 pin can be an issue when off-roading ... re-breaking it on rocks... non-issue for me, I'll be running a simple little tow hitch skid plate and horn

I'm looking at a simple wiring of two relays, may add enough resistance to help with Ford's test function(s) ... but interested in what someone has done. interested if anyone has a Ford wiring/fusing of trailer kit ? Do have the install.

Brake light is 9-14.8 VDC, 24 LED, and 310 mA

Chase lights 2, 9-14.8 VDC, 24 LED, and 330 mA

Thanks in advance

[this his a temporary third brake light to stay legal when my OEM third light is blocked by a tire cargo carrier when in use... and the 7 pin allows 12v power for other lighting attached to carrier... ]

yes there are other ways... like to relocate light, but interested in this way ;^)

Sponsored

 

[Gluestick]

You can cut the OEM third brake light wire and use Deutsch connectors to act as extensions to mount it wherever you like. I also got a morimoto 5-stop I used for awhile but you’ll need to drill holes and get creative with the bracket.

 

[Q1svt]

Thanks @Gluestick ... I've read your posts on your build, and your use of the DT connector.

My AAL Mass Storage is not going to be on my rear tire much, except when doing off road trips. I've gotten some AL rectangle tubing to raise the platform so the OEM third brake light will slip between the lower and upper parts. It will also allow for extra storage of long items in the pocket.

Looks like two relays will do what I want [can be use in a 4 pin or 7 pin]
Left turn - in #85/ out 86 ... [from or to light, then ground]
Right turn - in #85/ out 86 ... [from or to light, then ground]

When both are 'true' then current ... in #30/ 87 and to second in #30/ 87 will feed third brake light [can use running light power 4 pin, or a 7 pin (12v power)]
A 7 pin allows 12v for strobe chase lighting ...

My extra Baja Design lights will have a separate power to a source & switch in the rear cargo when driving and at camp into a Jackery ... like others, I cannot have to much lighting around camp, add motion sensors to shock critters and wonderers that get to close

Everything disconnects and stores very easy ...

Sponsored