Tail Lights not Working

[dwiz]

I have a 2022 1500 Ecodiesel and my taillights are not working. Both break lights and blinkers work with no issue. Changed the bulbs no change. Checked the harness to the bulbs found no current running to the harness. I checked every fuse in both fuse boxes, nothing blown. Does anyone have a wiring diagram? Any help greatly appreciated.

Thanks

 

[turkeybird56]

DELETE

 

[dwiz]

Don't see a dedicated fuse for the tail lights checked from here https://www.startmycar.com/ram/1500/info/fusebox/2022.

Ground connection going to the harness seems to be ok. No short between the two terminals on the tail light.

So I agree a fuse somewhere, just not seeing it.

 

[markabby]

does the license plate lights work? if so, go back to the lights

 

[dwiz]

does the license plate lights work? if so, go back to the lights

Yep, those are on.

 

[markabby]

Yep, those are on.

then supposedly those are on the same circuit. if there's power there, you SHOULD have power at the lights. Running lights do the fronts. plates, side markers (if there) and tail lights.

I'd go back to the tail lights and recheck if there is power when lights are on.

by any chance, would it be fuse 25?

 

[dwiz]

then supposedly those are on the same circuit. if there's power there, you SHOULD have power at the lights. Running lights do the fronts. plates, side markers (if there) and tail lights.

I'd go back to the tail lights and recheck if there is power when lights are on.

by any chance, would it be fuse 25?

Checked Fuse 25 in the engine compartment and Fuse 36 on the interior. Both are still good.

Any chance you've seen a wire diagram? Could it be a relay somewhere? Seen a pinout of the BCM?

 

[turkeybird56]

I have a 2022 1500 Ecodiesel and my taillights are not working. Both break lights and blinkers work with no issue. Changed the bulbs no change. Checked the harness to the bulbs found no current running to the harness. I checked every fuse in both fuse boxes, nothing blown. Does anyone have a wiring diagram? Any help greatly appreciated.

Thanks

Look at floorboard, above left foot, by E Brake. Look for the white cluster plug. There were reports in earlier ED's of that connection not being fully seated. In my 2015 ED, there was one white connection box, in my 2019 Bighorn Hemi there are 3 connectors there, not sure on newer EDs.

Make sure they are all firmly seated.

 

[markabby]

Yep, those are on.

the running lights are white with an orange stripe. With lights on, i'd check voltage in those wires. I sometimes use a light probe with a fine point to puncture the wire and check for voltage...be sure it's grounded. If no voltage there, then check the wire before the connector for power. It's a PITA, but you have to start with simple things first.

I searched for a diagram, but, they must be hidden in the FBI secret files.

 

[Kflou]

So did y’all figure out the problem

 

[2020ram1500]

Don't see a dedicated fuse for the tail lights checked from here https://www.startmycar.com/ram/1500/info/fusebox/2022.

Ground connection going to the harness seems to be ok. No short between the two terminals on the tail light.

So I agree a fuse somewhere, just not seeing it.

my left taillight cuts off after starting the engine... blinks 4 times and then cuts off.... comes back on every time i restart it!!! it stays on as long as i don't start it???? has anyone had this problem?????"

 

[BillM]

Dwiz, how did you fix your tail lights not working problem? Iam having the same problem