Wheelchair bound and have problem with wheelchair lift in trailer 7 pin wiring

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Army DV

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Hello all,
I have recently become wheelchair bound. Rt leg useless, left leg 50% usable.

My truck is a 2019 Longhorn. I believe it is the same as the Big Horn but with different trim, I could be wrong.

I managed to get a powered wheelchair similar to a hover round.

There is a lift (basically a linear actuator) that mounts into the receiver. You plug into the 7 pin outlet and it lifts the chair off the ground so you can drive.


MI park the wheelchair in the lift position and push a button and a triangle piece comes up and attaches to the wheelchair and lifts it up. Pretty cool setup.

My problem is that I lifted the chair and it locked in place, however when I got to the VA for an appointment I had, no power and cannot get the chair off the lift.

I cannot figure out where the fuse is located that provides full time power to the 7 pin outlet. I looked in the owners manual and it is not clear to me (I'm on a lot of pain meds so I blame them on my stupidity). I have watched videos and don't have the same looking fuse block.

The fuses are different than others and I can't see how to check them without pulling them to put a meter on them.

Getting up and down to look into engine bay, under dash at fuse block and rear hitch to see if I have power is kicking my backside.

Can anyone shed light on where the proper fuse is so I can see if it is a fuse or larger problem?


Thanks in advance for anything that helps me figure this out.
 

crash68

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Can anyone shed light on where the proper fuse is so I can see if it is a fuse or larger problem?
Just to verify, is your truck a Classic version which is DS body truck or is it a DT body? Easy way to tell the difference is a DS body has 5 lug wheels and a DT body has 6 lug wheels.

If your truck is a DS body, this fuse list is for the 7 pin plug:
F53 ATR 20 amp Left Trailer lights
F81 ATR 20 amp Right Trailer lights
F29 FMM 20 amp Trailer Park lights
F28 FMM 20 amp Trailer Back up lights
F30 FMM 30 amp Direct from battery
F11 J Case 30 amp Brake Lever
 
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Army DV

Army DV

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It has the 6 lug wheels so a DT body.

So your list only applies to the DS body?

Are these some kind of breaker or something new? I can't test for blown fuse as there are no points on top for meter leads. If they are a breaker of some type can they be reset?
 

18CrewDually

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From what I can tell on Classics it should be fuse #30 and is a 30 amp fuse. You can test them with a meter. Or temporarily swap it with another 30 amp to see if it works.

Screenshot_20230817_200051_Chrome.jpg

On the 5th gen new body, the interior fuse panel Fuse#1 is a 30amp should be the Trailer plug 12v. See circled fuse below.

Screenshot_20230817_201030_Chrome.jpg
 
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Army DV

Army DV

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Great, so fuse 30 on the interior fuse block (under dash). Ill have to check it tomorrow. My wife just got home and told me to quit for the day, I think she is right.

I'll swap that fuse with one I have in a box. Last year I went to a junk yard and pulled all the fuses and relays out of about 10 cars and trucks. Divided them by size, type and amp. I'll see if I can get it going. Currently every pin in the plug on the truck is dead. I'll try to find a pin-out photo so I can test it after replacing the fuse.

I'm sure you have provided the correct answer and I thank you for it. It will save me a lot of thinking with my head in a barrel. Can't wait until I can get off these pain meds, they suck. I am surprised people take them on purpose when they don't need them. They sure don't make me feel good.

I'll provide feedback tomorrow
 

18CrewDually

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If you got the new body style it is the interior fuse #1 on the second pic I posted above.
 

crash68

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So your list only applies to the DS body?
Unfortunately the wiring was changed with the newer DT body style. When you have questions about your truck, you'll want to post in the Gen5 section
(I'll move this post there).
 
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Army DV

Army DV

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Great on the move to the right location, thanks.

I should be able to swap that easily. Is that a regular fuse just a new design?
 

GTyankee

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Does the Ram DT models have TWO fuse panels ?

behind the Knee panel ... Internal Power Distribution Center

By the Battery ... External Power Distribution Center



confusing


The Power Distribution Center is located under the driver’s side instrument panel. This center contains cartridge fuses, micro fuses, relays, and circuit breakers.

Fuse Box Location​

The Power Distribution Center is located in the engine compartment near the battery. This center contains cartridge fuses, micro fuses, relays, and circuit breakers. A description of each fuse and component may be stamped on the inside cover, otherwise the cavity number of each fuse is stamped on the inside cover that corresponds to the following chart.
 
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