Post by Hank on Jun 17, 2021 16:02:57 GMT -5
When I picked up my KZ Durango with my 2021 Chevy 3500 in February I was disappointed to learn that the dealer-installed Furrion cameras I ordered would not work with my truck. The delivery tech at the dealer demonstrated that they work just fine connected to an external power source, but do not work when connected to my truck. They are on the marker light circuit on the RV.
I did some research and found that this is an issue known to Furrion. Apparently GM is using some sort of PWM "Pulse Width Modulation" as an energy management "feature" on their newer trucks. Furrion produced a device for 2019 and 2020 trucks which plugs in series between the RV and truck that solves the issue. Unfortunately GM changed things up again for 2021 so the workaround device does not work for my truck. Furrion is aware of the issue, working on a solution, but has no ETA for the 2021 solution.
So I set out to remedy the situation with my own kludged together device. I purchased male and female 7-pin connectors with wiring pigtails and a terminal block attached. I connected the circuit for the RV marker lights to the continuous 12V feed from the truck with a small switch on the terminal box. This allows the cameras to function normally so apparently no PWM on the main power feed.
This solution has an added bonus feature of allowing the user to forget to turn the marker lights off and run the truck batteries down. I'm vigorously testing this feature.
I did some research and found that this is an issue known to Furrion. Apparently GM is using some sort of PWM "Pulse Width Modulation" as an energy management "feature" on their newer trucks. Furrion produced a device for 2019 and 2020 trucks which plugs in series between the RV and truck that solves the issue. Unfortunately GM changed things up again for 2021 so the workaround device does not work for my truck. Furrion is aware of the issue, working on a solution, but has no ETA for the 2021 solution.
So I set out to remedy the situation with my own kludged together device. I purchased male and female 7-pin connectors with wiring pigtails and a terminal block attached. I connected the circuit for the RV marker lights to the continuous 12V feed from the truck with a small switch on the terminal box. This allows the cameras to function normally so apparently no PWM on the main power feed.
This solution has an added bonus feature of allowing the user to forget to turn the marker lights off and run the truck batteries down. I'm vigorously testing this feature.
