No Power to 4 pin connector.

[Pescatoral Pursuit]

Had the truck about a year and a half. Hooked up a trailer for the first time this week. Nothing.
Factory ordered Rubicon diesel with tow package.
Nothing on the round connector with an adapter, either.
Fuses are present and intact.
Bought a tester- nothing.

Anyone else experience this and what was the solution? Is there a typical location they forget to connect at the factory?

I do need the trailer, lol.

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[22EcoDs]

Did you pull the loom off the back of the hitch to see if there's power there? Does the ground have continuity ?

 

[Vtur]

Maybe they didn't activated the feature?

 

[Gren71]

I had this on my 2020. There was a loose wire on the back side of the connector where the harness connected to the 4/7 pin connector hub.

I found it and had the dealer replace the whole harness under warranty.

 

[Pescatoral Pursuit]

Did you pull the loom off the back of the hitch to see if there's power there? Does the ground have continuity ?

No. I just reached under there and wiggled it. Nada. I've got a buried volt meter have to dig up and go from there.
I'll pull the connector off tomorrow and see what.

 

[ShadowsPapa]

Not sure what you mean by "power" - you don't mean you are looking for 12 volts, are you?

There is no power to a 4 pin unless lights are on.
You have the following:
Ground
Tail lights
Brake/left turn
Brake/right turn
There's no power otherwise.

So if you didn't have lights on, you won't get any power back there.

 

[ShadowsPapa]

Maybe they didn't activated the feature?

Nothing to activate. It's connected through the PDC where the fuses are.
Even without a tow package you have those connectors and they work (so you could put a ball in the bumper and tow a small trailer. )

 

[Pescatoral Pursuit]

Not sure what you mean by "power" - you don't mean you are looking for 12 volts, are you?

There is no power to a 4 pin unless lights are on.
You have the following:
Ground
Tail lights
Brake/left turn
Brake/right turn
There's no power otherwise.

So if you didn't have lights on, you won't get any power back there.

Do tell. Thanks for your wisdom.

 

[ShadowsPapa]

I had this on my 2020. There was a loose wire on the back side of the connector where the harness connected to the 4/7 pin connector hub.

I found it and had the dealer replace the whole harness under warranty.

a single loose wire caused all lights to not work?
I could see a connector not seated doing that. But there's 4 wires, each with a different function. If one wire was loose - the other lights or functions should have worked (ground could have killed all lights but often, trailers will ground through the ball)

So you had no lights working - weird.

 

[Kevin_D]

… (ground could have killed all lights but often, trailers will ground through the ball)

Many modern trailers don’t rely on chassis ground, as it isn’t reliable.

Kevin

 

[ShadowsPapa]

Many modern trailers don’t rely on chassis ground, as it isn’t reliable.

Kevin

That's why there is a ground wire but sometimes you don't realize that ground is bad because things work when parked......but can be not working or intermittent when moving. I don't recall any trailer that doesn't use a dedicated ground. I only mentioned that because one may think it's ok when they check lights. It may have found a ground path. That doesn't mean the ground wire is good.

 

[22EcoDs]

No. I just reached under there and wiggled it. Nada. I've got a buried volt meter have to dig up and go from there.
I'll pull the connector off tomorrow and see what.

Aight it's 7pm where's our update fish boy.

 

[Pescatoral Pursuit]

Hey hey...

Aight it's 7pm where's our update fish boy.

Too busy today.

 

[22EcoDs]

Hey hey...

Too busy today.

Bump

 

[TroutFishingInAmerica]

Aight it's 7pm where's our update fish boy.

Did somebody say fish?

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