7 round connector - Hemi Truck Club
 
Go Back   Hemi Truck Club > Technical Forums > Towing, Hauling and Hitching

Reply
 
Thread Tools Display Modes
 
Old 07-28-2015, 09:08 PM   #1
Gold-Member
 
kcd1369's Avatar
 
Join Date: Oct 2004
Location: Brandon, FL
Posts: 4,046
Garage
7 round connector

I have as questuon, does anyone know what pin should have constant 12 volts?

There should be 12 volts on one of the pins that would be used to charge the trailer battery. I only found one fuse marked trailer power, its a 40 amp fuse.

Any help is appreciated.

__________________
05 1500 SLT Quad Black on Black | Pace Setter Long Tubes | Magna Flow Cat Back | Doug's Electric Cutout | Custom Ram Air Hood | Spyder LED Tails | Spec-D Black Projectors W/Halos | Flex-A-Lite E-Fan |Jet 180 Stat | K&N CAI | 20 inch wheels | Comp 268 Cam W/6.1 push rods and springs | Diablo Trinity | Custom Tune by Charged392.





kcd1369 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-28-2015, 10:04 PM   #2
2012 Truck of the Year
Engine Specialist
 
charged392's Avatar
 
Join Date: May 2011
Location: Fort pierce, FL
Posts: 17,262
Garage
Here you go.
Attached Images
File Type: jpg image.jpg (58.7 KB, 16 views)
__________________
"CMR TUNER" [email protected] 1/4 with a 7.32 1/8 custom long/short bars by "Me" Turbocharged 392 on 9psi S475/96/1.32 . Running thru an A518! [email protected]
charged392 is offline   Reply With Quote
Old 07-28-2015, 10:06 PM   #3
2012 Truck of the Year
Engine Specialist
 
charged392's Avatar
 
Join Date: May 2011
Location: Fort pierce, FL
Posts: 17,262
Garage
Top center around the clock then center.

12v
Right turn
Trailer brake
Ground
Left turn
Parking
(Center) reverse lights
__________________
"CMR TUNER" [email protected] 1/4 with a 7.32 1/8 custom long/short bars by "Me" Turbocharged 392 on 9psi S475/96/1.32 . Running thru an A518! [email protected]
charged392 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-29-2015, 06:29 AM   #4
Gold-Member
 
kcd1369's Avatar
 
Join Date: Oct 2004
Location: Brandon, FL
Posts: 4,046
Garage
Thank you. That is perfect.
__________________
05 1500 SLT Quad Black on Black | Pace Setter Long Tubes | Magna Flow Cat Back | Doug's Electric Cutout | Custom Ram Air Hood | Spyder LED Tails | Spec-D Black Projectors W/Halos | Flex-A-Lite E-Fan |Jet 180 Stat | K&N CAI | 20 inch wheels | Comp 268 Cam W/6.1 push rods and springs | Diablo Trinity | Custom Tune by Charged392.





kcd1369 is offline   Reply With Quote
Old 07-29-2015, 09:48 AM   #5
Senior Member
 
HemiFun05's Avatar
 
Join Date: Jul 2007
Location: College Station, Texas
Posts: 13,175
Thumbs up

__________________
HemiFun05
'Doc'
"Christians Aren't Perfect - We Are Forgiven"
HemiFun05 is offline   Reply With Quote
Old 07-29-2015, 05:45 PM   #6
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,095
Garage
There is a lot of diagrams on the internet. Here's one. Seven pin is near the bottom.
Trailer Wiring Diagrams | etrailer.com
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1956 Jeep Pickup Hemi powered "Street Rod project"

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Old 07-29-2015, 05:53 PM   #7
Gold-Member
 
kcd1369's Avatar
 
Join Date: Oct 2004
Location: Brandon, FL
Posts: 4,046
Garage
Thanks Greg. I had a few from the web. But wasn't sure if I had the right one due to power missing an 2 pins. And as Keith pointed out by posting that picture, it is molded into the cover. My problem is I don't have the 12VDC even now knowing the correct pin out. And the fuse is good. All other signals are there. Just no trailer power on the + pin.
__________________
05 1500 SLT Quad Black on Black | Pace Setter Long Tubes | Magna Flow Cat Back | Doug's Electric Cutout | Custom Ram Air Hood | Spyder LED Tails | Spec-D Black Projectors W/Halos | Flex-A-Lite E-Fan |Jet 180 Stat | K&N CAI | 20 inch wheels | Comp 268 Cam W/6.1 push rods and springs | Diablo Trinity | Custom Tune by Charged392.





kcd1369 is offline   Reply With Quote
Old 07-29-2015, 06:48 PM   #8
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,095
Garage
You'll have trace the wire. I installed mine myself so I know what to expect. If yours is factory you may have something not turning on. Maybe do a little custom wiring using a relay and fuse of your own.
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1956 Jeep Pickup Hemi powered "Street Rod project"

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Old 07-29-2015, 08:09 PM   #9
Gold-Member
 
kcd1369's Avatar
 
Join Date: Oct 2004
Location: Brandon, FL
Posts: 4,046
Garage
Greg, do you have a schematic that shows this circuit stock? Is there a relay in this line? Maybe that's my issue if there is.
__________________
05 1500 SLT Quad Black on Black | Pace Setter Long Tubes | Magna Flow Cat Back | Doug's Electric Cutout | Custom Ram Air Hood | Spyder LED Tails | Spec-D Black Projectors W/Halos | Flex-A-Lite E-Fan |Jet 180 Stat | K&N CAI | 20 inch wheels | Comp 268 Cam W/6.1 push rods and springs | Diablo Trinity | Custom Tune by Charged392.





kcd1369 is offline   Reply With Quote
Old 07-29-2015, 08:54 PM   #10
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,095
Garage
On my 03 schematic The power (12vdc) starts at Fuse #1 (40a) in the IPM, exits IPM C6-2 RD/OR. Looks like there is a connection near controller) changing wire color to WT/RD. So do you have a WT/RD wire at the rear bumper? If not then you can do like I did and connect to the pos terminal at the battery and use a 40a fuse with a 40/60a automotive relay inline activated by ignition "ON" source. Then run the wire to the rear bumper and connect to the 7 pin connector. When not towing you can remove the fuse or just leave it in... Good luck.
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1956 Jeep Pickup Hemi powered "Street Rod project"

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Premium Vendor Showcase
n2 Speed Edge InTune Edge OCPerformance Parts

All times are GMT -6. The time now is 04:08 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.