How To Power Third Brake Light On Camper Shell Using 7-Way Trailer Connector

Updated 06/10/2025 | Published 08/12/2019

Products Featured in This Question

3rd Brake Light Logic Module

(199)

$19.59

Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End

(737)

$8.20

Question:

I have a Nissan Titan 2015 and just picked up a used leer cap for it. Is there anyway to wire the third brake light with out splicing? D hey make some type of connector.....I have a 7 pin trailer tow package can I use that ....if not what would be the easiest and best way to do this

asked by: Danny

Helpful Expert Reply:

Yes, you can use the factory trailer connector on your 2015 Nissan Titan to power the third brake light on your Leer camper shell. That said, they don't make a plug and play harness for this so you will need to do some wiring but no splicing into the vehicle will be required. Basically, all you need is the Pacer Performance 3rd Brake Light Logic Module part # PP20-702, the Pollak Black Plastic RV-Style Trailer Connector part # PK12706 and then some loose wire and connectors to attach it all together. The logic module will feed into the right or left stop/turn pin on the connector and then you run the output to the third brake light. It will also need to be grounded as with the connector but the other slots will remain blank.

expert reply by: Conner L

Kraig

4/22/2024

Hello Conner. I was doing some research and saw this post. Well this work for a 2017 Ram 3500 with a 7 pin tow package? I am thinking that it will but I wanted to be sure to ask first.

Jameson C.

5/15/2024

@Kraig Yes, this would work on your Ram as well.

Jameson C.

5/15/2024

@Kraig Yes, this would work on your Ram as well.

Ryan

7/9/2024

Hi Connor just got done installing ,third brake with above parts also added dome light off power wire connected to 7 pin I thought I had it, brake came on with brake seemed like solid light Then I thought I'd better check blinker. Third brake is blinking with blinker I connected left to yellow right to second yellow and green too light I ran red from power to dome connected second wires together to white and added white to connector grnd. So what am I missing?

Ryan

7/9/2024

@Ryan so on further review with brake on,blinker on light is solid with just brake light is solid. With just blinker on third light blinks. Is this the normalninstallation

Jameson C.

7/9/2024

@Ryan It does sound like you wired up everything correctly but I would double check that the yellow wires have the stop/turn signals and the green is ran to the third brake light. If that all checks out the problem would have to be the module being faulty.

Ryan

7/9/2024

@JamesonC yellow to left Yellow to right Third green to light I had connectors on so I cut them off. Light blinks with blinkers With brake applied no blink Now the only thing I'm looking at Two wires from light one has black/red the other red white I have red white to green logic Would that matter?