Troubleshooting A 2019 Ram 1500 With No Power To The 12v Pin On 7-Way Plug

Question

Question:

The 12V pin on my 19 Ram 1500 doesnt have any power. Any ideas?

asked by: Steve O

0

Expert Reply:

Hey Steve,

Did you happen to check for power while the vehicle was running? While uncommon I have seen some vehicles with power only while the vehicle is running.

Usually if the 12v pin on your trailer connector is not getting any power it is due to a blown fuse. I would start with checking that fuse to see if it has in fact blown or missing.

I went ahead and took a look at your owners manual, it looks like there is a 30 amp pink fuse located in the F30 cavity that you will want to check. The fuse will be in the power distribution center which is in the engine compartment near the battery.

If this does not fix the issue please let me know and I can look into this more for you.

expert reply by: Nick S

0

Nick S.

9/29/2025

Hey Steve, did checking the fuse in the power distribution center solve the issue with the 12V pin on your Ram? I'm asking because it could help others facing a similar problem.

Jeffk

4/18/2026

Same issue here. Need to solve ASAP. Leaving on Wednesday morning on longer trip.

Robin H.

4/18/2026

@Jeffk if the fuse/relay is fine then you're left looking for a short. Test along the power wire until you find the short and repair.

Answer 1

The Electric Trailer Brake Kit - 10" - Left and Right Hand Assemblies - 3,500 lbs part #AKEBRK-35 may be the assemblies you need based off the weight capacity of 3,500 lbs. To be sure you want to make sure your existing assemblies are 10"…

view full answer...

Answer 2

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

view full answer...

Answer 3

In some cases trailer lighting will ground through the hitch ball but that's typically only if the actual ground circuit is insufficient. This is not an ideal setup. It needs to ground through the wiring of the trailer harness. You can test this…

view full answer...

Answer 4

A Lippert 3,000 Lb (LCI35) Trailer Axle will use the Hub Bearing Kit for Lippert, Dexter, and Al-Ko Axles - 3,500 lb with #84 Spindle part #BK2-100 which has everything you need from the bearings to the seals.

view full answer...

Answer 5

The 10 inch Electric Brake Assembly, #23-26, requires a 7/16 inch, fine thread bolt for installation. Use part #6-17 for installation. The lock washer is also 7/16 inch. Part #5-8 is the correct washer for this application.

view full answer...

Answer 6

Sometimes you can hear a slight buzzing sound when you hook up your 7-Way but not always. This may be the case in your situation. Typically when people hear the buzzing noise is when the brakes are engaged. If you are not applying the brake pedal in…

view full answer...

Answer 7

The picture of your 7-way is the biggest clue to the root of your problems. You have a ton of corrosion in there which can cause all sorts of problems from shorting circuits out like you mentioned (the smoking circuits) as well as causing…

view full answer...

Answer 8

There are several items you might want to try using for removal of corrosion in your 7-way trailer connector, like part #HM48480. White Vinegar A wedge shaped, slip on pencil eraser or art gum eraser Pipe cleaners PB Blaster If the corrosion is…

view full answer...

Answer 9

For starters, I would first check to see that you are testing the correct pin. The correct pin that should house the 12-volt circuit on your 2017 Ram 1500's 7-way trailer receptacle is located in the 1 o'clock position (see photo). The…

view full answer...

Answer 10

The intermittent trailer disconnected message that is appearing on your 2012 Ram 1500 is generally caused by corrosion in the trailer connectors but since you have already checked that we can eliminate that possible cause. I will say that although it…

view full answer...

Answer 11

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…

view full answer...

Answer 12

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.

view full answer...

Troubleshooting A 2019 Ram 1500 With No Power To The 12v Pin On 7-Way Plug

Product Page this Question was Asked From

Continue Researching