No Left or Right Turn Signal Power on 2014 Forest River Motor Home on a Ford E-450 Van Chassis

Question

Question:

I have a 2014 Forest River E450 motor home. At the trailer connector i have NO left or right signal light current. All relays are installed but No power to the these two relays. All that I need are left and right signal lights.tail lights and brake lights. ? what do I need in order to get this system to function correctly so that I can safely tow my car? Is this problem RV related or is it a Ford problem? Any assistance will be greatly appreciated. Thanks in advance.

asked by: Marvin B

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Expert Reply:

If your 2014 Forest River on the Ford van chassis has a factory installed trailer connector then it could be missing a fuse or two (if all the relays are present). Use the owners manual to find the locations of all the fuses and relays associated with the tow package wiring.

On a 4-Way or 7-Way trailer connector, the brake lights and turn signals are on the same circuits. So if you have the brake lights working at the connector but not the turn signals that is likely a fuse issue. Since the vehicle is so new you should have some kind of warranty on it. If it is a factory installed trailer wiring connector I would take it back to the dealer and have them fix it.

If the trailer connector was installed aftermarket then there is some testing you can do to determine where the problem is. I have included a link to the right that should help.

If the issue is on the trailer (the signals do not blink on the trailer but the vehicle side connector has power like it is supposed to) then the issue is likely a bad ground on the trailer.

Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light.

Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces.

The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground. Running jumper wires from the light grounds to the main trailer connector ground can help.

expert reply by: Michael H

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Answer 1

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 3

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 5

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors which we…

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Answer 6

The trailer brakes work on a separate circuit than the lights. You have a couple of options to control the electric brakes on the trailer. One option is to use an air over electric brake control, #HA100400C. This unit connects to the air brakes on…

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Answer 7

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 8

The Redarc Tow-Pro Liberty #RED24FR is the way to go over the Elite #RED44FR as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed…

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Answer 9

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 10

The P3 brake controller, #90195, will go into a sort of sleep mode after it detects no movement for 15 minutes. While it is on it does not draw very much power. What you can do to make sure it goes to sleep is exit the truck after turning it off,…

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Answer 11

Either way is correct. It depends on if you want to keep the semi-style 7-Way (if you need to tow that type of trailer) or if you will never be towing a semi-trailer. If you need to keep the 7-Way semi active on the truck, then you would need to make…

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Answer 12

On a 7 pin round which is the common connection on a semi trailer, the clearance/marker lights are at the 10 o clock position when you look at the trailer wiring connection. When looking at the connector on the back of the truck, that will put the…

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No Left or Right Turn Signal Power on 2014 Forest River Motor Home on a Ford E-450 Van Chassis

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