Need help with reverse light wiring

[Diligenthunter]

Looking to install some additional reverse light to my truck.

2022 f150 platinum pb with on board scales.

I first tried diode dynamics hitch light, however the wiring makes the truck think a trailer is connected so that’s a no go.

I then ordered a kit from “Specialty Performance Vehicles” this kit uses a harness from your tail lights.

Now the harness did not fit my tail light, locating pins were in slightly different locations. Spoke with John at SPV he sent me test harness to verify reverse and parking light wire locations. Found the parking light circuit but I can not figure out which wire is for the reverse circuit.

TLDR: Does anyone know what color wire or pin location is used for the tail light reverse lights?

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[McGuyver]

There is a lot going on in those taillights. I believe it is the gray wire with brown stripe. Location Pin 4. Give that a try.

 

[Diligenthunter]

There is a lot going on in those taillights. I believe it is the gray wire with brown stripe. Location Pin 4. Give that a try.

Pin 4 has 12 volts at all times on my truck.

 

[McGuyver]

Possibly Pin 8 is the signal? Yellow/Violet LIN 14 on the diagram. Kinda makes me think there is a module within the taillight and the BCM just sends a signal to trigger ground to complete the circuit.

 

[teopham]

Did you ever figure out the reverse light wire and how that works

 

[sbacpo]

OP- did you figure out which pins were which?

 

[Diligenthunter]

Nope, reverse trigger is canbus. Ended up pulling from 7 pin trailer harness.

https://www.diodedynamics.com/stage-series-7-pin-single-output-trailer-wiring-harness.html

 

[SpaceWhiteF150]

Looking to install some additional reverse light to my truck.

2022 f150 platinum pb with on board scales.

I first tried diode dynamics hitch light, however the wiring makes the truck think a trailer is connected so that’s a no go.

I then ordered a kit from “Specialty Performance Vehicles” this kit uses a harness from your tail lights.

Now the harness did not fit my tail light, locating pins were in slightly different locations. Spoke with John at SPV he sent me test harness to verify reverse and parking light wire locations. Found the parking light circuit but I can not figure out which wire is for the reverse circuit.

TLDR: Does anyone know what color wire or pin location is used for the tail light reverse lights?

I had the exact same issue with my harness, but luckily I had the halegon lights so it was very easy to figure out the problem. SPV was very easy to work with, great customer service! I’m pretty sure they just sent me out one with all the pins and it worked perfect.

 

[Bama Stripes]

Nope, reverse trigger is canbus. Ended up pulling from 7 pin trailer harness.

https://www.diodedynamics.com/stage-series-7-pin-single-output-trailer-wiring-harness.html

What reverse light did you use to connect to this harnesses. I think I will have the same problem as you did (23 Lariat) trying to connect to the taillight wiring.

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