Brake controller/fuse problems

azgolfer · 05-25-2008, 09:15 PM

I have a 04 Dodge diesel. Upon hooking up my trailer, I found my brake controller not working. (the green LED on the controller was not lit and I had no trailer brakes)

I found that #42 fuse-20a power outlet-console was blown. I tried the obvious and replaced the fuse. It blew immediately. I the isolated the brake controller from the system and tried another fuse. It blew instantly again. (FYI, the trailer was unplugged from the truck at the start of my troubleshooting)

I bought an Chilton's book. They had wiring diagrams, but not for #42 fuse (I looked several times)

I checked every control/device on my truck. Everything appears to working OK, except for the trailer brake controller. Any suggestions??? Does the #42 fuse feed anything else but the trailer controller? Thank you in advance

crabtruck · 05-26-2008, 08:12 PM

Welcome to the forum azgolfer.
I think the #42 20A (in Rams) is used for the power outlet in the console
except for base models. Red/DkBlu

azgolfer · 05-27-2008, 05:55 AM

Thank you. I found the problem (it was me). I assumed I had one problem. It turns out, there were two separate problems. I had a break controller go bad. I replaced it & the new one is fine. I still have a short in the console outlet, but that isn't a big deal for me. I'll look into as time permits. Thanks again!

05-25-2008, 09:15 PM	#1
azgolfer Junior Member Join Date: May 2008 Posts: 2	Brake controller/fuse problems I have a 04 Dodge diesel. Upon hooking up my trailer, I found my brake controller not working. (the green LED on the controller was not lit and I had no trailer brakes) I found that #42 fuse-20a power outlet-console was blown. I tried the obvious and replaced the fuse. It blew immediately. I the isolated the brake controller from the system and tried another fuse. It blew instantly again. (FYI, the trailer was unplugged from the truck at the start of my troubleshooting) I bought an Chilton's book. They had wiring diagrams, but not for #42 fuse (I looked several times) I checked every control/device on my truck. Everything appears to working OK, except for the trailer brake controller. Any suggestions??? Does the #42 fuse feed anything else but the trailer controller? Thank you in advance

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05-26-2008, 08:12 PM	#2
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	Welcome to the forum azgolfer. I think the #42 20A (in Rams) is used for the power outlet in the console except for base models. Red/DkBlu

05-27-2008, 05:55 AM	#3
azgolfer Junior Member Join Date: May 2008 Posts: 2	Thank you. I found the problem (it was me). I assumed I had one problem. It turns out, there were two separate problems. I had a break controller go bad. I replaced it & the new one is fine. I still have a short in the console outlet, but that isn't a big deal for me. I'll look into as time permits. Thanks again!