New trailer plug - Page 2

TheLetterJ · 04-10-2022, 05:18 PM

Congratulations!

Mikerson · 04-10-2022, 09:35 PM

Quote:

Originally Posted by mikracer

Thanks! I bought the 40975 thinking I could unplug my factory plug and plug it in. I didn't realize the factory plug was hardwired. I'll take a look at the 40985.

Quote:

Originally Posted by TheLetterJ

Perfect timing! I need to replace my 7 way that has been smashed under my bumper a few too many times and wanted to put a flush mounted plug in my bumper. I was looking at that 40975 and couldn't understand how I was supposed to attach the wires!... 40985 answers that question!

Great! Glad it will work out!

mikracer · 04-10-2022, 11:24 PM

Quote:

Originally Posted by REF

Congrats on the new addition! [emoji324]

Thanks! Did you end up getting those Aluminess parts while you were down in socal?

mikracer · 04-10-2022, 11:24 PM

Quote:

Originally Posted by TheLetterJ

Congratulations!

Thanks man!

REF · 04-11-2022, 07:11 AM

Quote:

Originally Posted by mikracer

Thanks! Did you end up getting those Aluminess parts while you were down in socal?

No, didn’t quite work out, oh well.

mikracer · 04-12-2022, 12:20 AM

One of the reasons I want to eliminate the adaptor is because I recently tried to rent a uhaul trailer and two trailers I hooked up to didn't have brake lights. I'm guessing it had to do with my van and not the trailers.

Is there a fuse or fuses I should be checking somewhere?

1der · 04-12-2022, 09:06 AM

mikracer - Have you checked the terminals on your 7 point to see if they are working properly? Also do a check for continuity on your 7 to 4 adapter and/or voltage with it plugged in and wiggle it. There are plenty of schematics for which light function each terminal provides for 7 and 4. I would check that before looking for fuses. If the van lights work then the trailer connector should be active.

I have had UHaul completely melt their pigtail and literally melt my 7 to 4 adapter(they replaced it) due to the trailer having a wiring problem. I would not put it past that two trailers had the problem especially if they used the same pigtail. I now ALWAYS bring my meter when renting a trailer!

mikracer · 04-12-2022, 12:14 PM

Quote:

Originally Posted by 1der

mikracer - Have you checked the terminals on your 7 point to see if they are working properly? Also do a check for continuity on your 7 to 4 adapter and/or voltage with it plugged in and wiggle it. There are plenty of schematics for which light function each terminal provides for 7 and 4. I would check that before looking for fuses. If the van lights work then the trailer connector should be active.

I have had UHaul completely melt their pigtail and literally melt my 7 to 4 adapter(they replaced it) due to the trailer having a wiring problem. I would not put it past that two trailers had the problem especially if they used the same pigtail. I now ALWAYS bring my meter when renting a trailer!

I'll need to check them. I've had issues with other trailers with lights not working. My toy hauler lights work fine with the 7 pin (last I checked) and my van lights work fine.

mikracer · 04-14-2022, 04:22 PM

Did some sleuthing today and it turns out the fuse for the trailer relay turn signals (which also controls the brake lights) was burned out. Luckily I had the wiring manual for my van and it was easy to find which fuses to check. Put a new one in and we are back in business.

I think I'll still install the new plug with the 7 pin and 4 pin built in just because of convenience, but its not something that needs to be done immediately.