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| 7 Pin Wiring Harness Electrical Issues http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=18240 |
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| Author: | Y-Guy [ Sun Mar 04, 2007 2:49 am ] |
| Post subject: | 7 Pin Wiring Harness Electrical Issues |
I could use some advice here. I installed the two wiring harnesses for a 7 pin Wiring Harness in my Liberty. The install went well it seemed. Hook up to a 4 way adapter worked fine. Then I hooked up to a trailer with brakes and found the brakes were engaging. The issue there is I hadn't yet installed a brake controller, so the brakes shouldn't have been on. I have four issues, which are probably related. 1) Brakes are on even without a controller 2) #4 connector according to Jeep is the brake line, but the standard wiring code says it should be a battery charge line. 3) The #4 connector is always hot even with the key out 4) The running lights do not work. So I am now thinking that when I installed the wiring harness in the rear of the Jeep that somehow got the wrong wires pushed into the connector. The diagram gave very vague direction (see picutre). So now I am wondering if anyone has a photo or service manual showing what these wires should look like so I can compare them to how I installed mine. Thanks for any thoughts or advice
The other issue is that the diagram on the Jeep 7 pin doesn't match up to standard 7 pin car end diagrams. # Standard diagram -- Jeep diagram 1 Common Ground -- Running Light 2 Electric Brake -- Battery Charge 3 Tail/Running lights -- common ground 4 Battery Charge -- electric brake 5 left turn/stop -- left turn/stop 6 right turn/stop -- right turn/stop 7 aux/back up -- back up
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| Author: | q50055 [ Sun Mar 04, 2007 9:38 am ] |
| Post subject: | |
I think your brakes/wring is correct - the brake go on when there isn't a controller present. The brake controller interrups the connection when powered. I checked my connections - with key off but with a brake controller I have +12v at the electric brake pin. |
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| Author: | Y-Guy [ Sun Mar 04, 2007 12:34 pm ] |
| Post subject: | |
Ok I'll install the controller and see if that solves the problem. |
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| Author: | Kniggit [ Mon Mar 05, 2007 12:41 am ] |
| Post subject: | |
There was a change in the 7 pin a few years back and they make an adapter for people with the new setup to use old trailers and new trailers on the old setup, sounds stupid, but its true, figured that out when we pulled a couple year old trailer with my brothers new at that time 04 dodge. So you may need to look into that too. K |
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