No Running Lights

veafer · 10-13-2018, 09:52 AM

Brand new 2018 SLX 265RLS. Packed and ready to go, last thing we do is check the brake lights and turn signals. Plugged up, nothing. The brake controller shows connected. HELP!!!!!!!

oldmanAZ · 10-13-2018, 09:58 AM

So everything worked on a previous trip, just not now?
Tow vehicle engine running or ??
Do brake lights/turn signals/headlights work on the tow vehicle?

veafer · 10-13-2018, 10:32 AM

Yes sir. Everything worked on the trip home after purchase. The TV is giving a signal, and all the TV's lights are operating correctly. We used a tester that we had, so I know the plug on the truck is working. The brake controler is showing a trailer connected. Just nothing on the camper.

us71na · 10-13-2018, 12:09 PM

On our Skylark, the trailer cable connects inside the front of the trailer with a canon plug. Perhaps the connecter is loose in yours.

**Mustang65** · 10-13-2018, 12:51 PM

Follow the cable back to the TT. IT should go into a 4x4 meal electrical box. Open the box and look for the GREEN wire. There will be a wire nut on it that connects the wire from the TV to the TT running lights.

Below is a wiring diagram for my TT, but JAYCO uses the same TV cable on all their TT's. Make sure the wires are clean and the wire nut, when tightened, makes a good connection. Your lights should come on after that. You can check for 12VDC coming from the truck at this point. If there is 12Volts reconnect the cable. Lights??

One other point, JAYCO uses crimp connections on some of their wires. My break-away switch was connected to the brakes with one of these, and when I pulled the wires out, yes you guessed it, the wire came out of the crimped connector.. I replaced it with a regular wire nut..

Also, check the exterior lights fuse in the TT's battery control center. You will also see a yellow wire that is sitting in a wire nut all alone (at least mine was), this is the back up light wire from the TV. If you wanted to add back up lights to your TT, you can install them on the back of your TT and run the lights 12VDC supply wire to the yellow wire, but of course get the running lights working first.

Let us know.

Don

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veafer · 10-14-2018, 10:22 AM

Thanks for the input, folks. I tried your suggestions,Don. Checked the connections in tne box, 2 green wires in the box, and redid wire nuts. Nothing. Ground wires look ok, and the fuses in the battery center are good. The TV is showing output from the plug. And the brake controller is working. I give. Camping this long weekend,for me, just not going to happen. Call the dealer 1st thing in the morning and see what they are going to do.

Seann45 · 10-14-2018, 10:35 AM

Check the trailer plug for corrosion. The batteries "gassing" could have etched the contacts inside the trailer plug.

**Mustang65** · 10-14-2018, 03:41 PM

Look at the wiring diagram, pin (3) = Running lights, pin (4) = Charging line. Make sure you have 12Volts at the TT's battery. With a short 3" piece of wire (14AWG), strip the ends and insert one end of the wire in #3 an the other in #4 of the TT's cable. Make sure you look at the below wiring diagram and you will see that the plug key is located between pins 3 and 4. The charge line is connected to the TT's battery also.

One more thing, check the cable that connects the battery to the frame ground, it may be loose

If you get your running lights to work, then your issue is in the TV part of the circuit.

Don

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veafer · 10-14-2018, 08:35 PM

Thanks again,Don. Tried your suggestion, and nothing lights up. Ground looks good. Just hope our dealer has a quick fix. Just gets frustrating when it's brand new and never been pissed in.

**Mustang65** · 10-15-2018, 05:55 AM

Good morning,
See if you have 12VDC between pins #1 (Charge line) and pin #4 (Ground). Do all the 12VDC electrical things work when only on battery? Unlikely, but was thinking the main 30 amp blade fuse by the batteries.

Don

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RVing with SOLAR

veafer · 10-15-2018, 09:03 AM

Just got off of the phone with the dealer. Surprise, surprise. Told me I needed to tow it 2 hours WITHOUT brake lights or turn signals to get it there for service. When I suggested that it might be just a bit illegal to do so, they had no answer. Just called Jayco, they are supposed to get back to me. Wait and see.

Kim Gass · 10-15-2018, 09:24 AM

our brake controller is not working
Its been raining for three days
Stopped working this am
Close examination reveals bite marks and chewed off insulation
Niw looking for RV repair shop in KY

Rodents can wreak havoc

**Mustang65** · 10-15-2018, 11:12 AM

Do you have 12Volts between pin #4 (Charging line) and pin #1 TT (Ground)?

Look at the wiring diagram, rear light street side has an additional ground connection tot he frame. You may have the same on your TT. Check that out.

This really sounds like a grounding issue since al the exterior lights are not working.

Don
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RVing with SOLAR

veafer · 10-15-2018, 03:07 PM

Don, I can't thank you enough for all the suggestions. I have a tech coming to the house on Wednesday and hopefully he will be able to figure it out. I think you are on the right track in calling it a grounding problem. Will keep this updated when I find anyrhing out.

veafer · 10-15-2018, 04:25 PM

Problem found and fixed. Bad ground connection. Jayco itself was quick to get back to me. Bad was the dealer wanting me to pull the camper without any type of outboard lights 90 miles so they can look at it. Now we just have to wait 5 weeks till our next outing. Thanks for all the help!

**Mustang65** · 10-15-2018, 05:04 PM

Glad you found the problem!!
Don

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RVing with SOLAR

oldmanAZ · 10-15-2018, 06:41 PM

Glad you are now well grounded.

If you know, please share the location of the bad ground. It may save a fellow RVer the grief you experienced.

veafer · 10-15-2018, 06:51 PM

The bad ground was in the 4x4 electrical box where all the connections from the plug are made on the camper. Right behind the battery and propane tanks, mounted on the frame. The man that found the problem said it appeared to be caused by the use of a wrong sized wire nut. To small for the 3 wires that it connected. Wire was loose. No ground. Took 10 minutes to find. Jayco will be sent the bill. Roadside service calls sure ain't cheap!

**Mustang65** · 10-15-2018, 09:29 PM

When you opened the 4x4 electrical box you noticed that it was a little cramped in it. I went to Home Depot and purchased a 4x4 electrical box extension. I mounted a GROUND lug and a POSITIVE lug. Redid the cable ends and everything has been working fine for the last 6 years. Yes, I tagged all the wires.

Don
My Registry

RVing with SOLAR

ArkansasFeather17 · 10-16-2018, 07:38 PM

Ok the friends we travel with had same issue on 2018 Eagle he pulled down the undercover right behind the hitch unit bingo wire nut had fallen off. Problem solved.

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