I have a 2020 Ram Promaster. I have read every thread I can find about how others have done this. My desire is to find a place to connect the D+ wire that is only "on" when the engine is running.
NOTES FROM OTHER POSTS:
DIY Camper Van Electrical Diagram - Updated September 2020
"After some research I discovered that some Promaster vans (2016 or newer I think) have a “Upfitter Connector” on the passenger side “pillar” which is that area just behind the passenger seat where the seat belt connects to the van wall. If you remove the black plastic trim at the bottom of this “pillar” you’ll see a white multi-pin connector (photo below). This is the “upfitter connection” that provides a variety of connection points for the Promaster in one spot. This PDF file (Promaster Upfitter Connector Diagram PDF) details this connector including what each pin on the connector is/does. Turns out that pin #13 is an “ignition feed” that has 12 volt positive when the ignition switch is on. So, I used this to be the “trigger” for the Renogy DC to DC charger."
??? I tried this -- but on my van, the spot #13 is not hot ever.
DC-DC charge key-on 12v power
#26 · Jun 11, 2021 @Mcjoshin,
"For anyone who is reading this later and looking for a solution to where to tie in the D+ signal wire for the Renogy DC to DC charger (or any other DC-DC charger), we just wrapped up our first install of one and found a great solution I haven't seen mentioned elsewhere. We tied in to the fuel pump wire. It's an easy wire run inside the cabin or you can also come up from underneath the chassis since there's easy access where the fuel pump is. It clicks on for a quick second when you turn the key to ACC and the fuel pump primes and then shuts off. It only has constant power when the engine is running, so you don't have to worry about accidentally draining your starter battery when you have the key in ACC and you don't need a switch. You could still install a switch if you wanted control over it, but at least you wouldn't drain your starter battery if you ever forgot you had it on. Working great for us with no issues so far."
??? Where exactly can I find this "fuel pump wire"? Can anyone send a photo for a novice like me?
??? Any other ideas that have worked for others ???
Thank you!!
NOTES FROM OTHER POSTS:
DIY Camper Van Electrical Diagram - Updated September 2020
"After some research I discovered that some Promaster vans (2016 or newer I think) have a “Upfitter Connector” on the passenger side “pillar” which is that area just behind the passenger seat where the seat belt connects to the van wall. If you remove the black plastic trim at the bottom of this “pillar” you’ll see a white multi-pin connector (photo below). This is the “upfitter connection” that provides a variety of connection points for the Promaster in one spot. This PDF file (Promaster Upfitter Connector Diagram PDF) details this connector including what each pin on the connector is/does. Turns out that pin #13 is an “ignition feed” that has 12 volt positive when the ignition switch is on. So, I used this to be the “trigger” for the Renogy DC to DC charger."
??? I tried this -- but on my van, the spot #13 is not hot ever.
DC-DC charge key-on 12v power
#26 · Jun 11, 2021 @Mcjoshin,
"For anyone who is reading this later and looking for a solution to where to tie in the D+ signal wire for the Renogy DC to DC charger (or any other DC-DC charger), we just wrapped up our first install of one and found a great solution I haven't seen mentioned elsewhere. We tied in to the fuel pump wire. It's an easy wire run inside the cabin or you can also come up from underneath the chassis since there's easy access where the fuel pump is. It clicks on for a quick second when you turn the key to ACC and the fuel pump primes and then shuts off. It only has constant power when the engine is running, so you don't have to worry about accidentally draining your starter battery when you have the key in ACC and you don't need a switch. You could still install a switch if you wanted control over it, but at least you wouldn't drain your starter battery if you ever forgot you had it on. Working great for us with no issues so far."
??? Where exactly can I find this "fuel pump wire"? Can anyone send a photo for a novice like me?
??? Any other ideas that have worked for others ???
Thank you!!
