Marker Lights

[IvanNik]

Did you ever get this figured out?

nope.. don't have a good strategy atm, don't want to cut/tap..

 

[RHO.Tobe]

Maybe you guys can help me figure out why the hell my turn signal and hazard lights work but don’t make any clicking sound in the cabin? any help is appreciated

 

[YGarage]

Hello there, i have a 2025 RHO and the clearance warning light just turn off, i check for power on the wire by one of the lights and no volt is coming out, can someone advise which fuse feed those lights?

 

[Eighty]

Hello there, i have a 2025 RHO and the clearance warning light just turn off, i check for power on the wire by one of the lights and no volt is coming out, can someone advise which fuse feed those lights?

F32 on your external power distribution center.

 

[YGarage]

That fuse only controls the clearance lights or every external light because everything turns on except the clearance warning lights?

 

[Eighty]

That fuse only controls the clearance lights or every external light because everything turns on except the clearance warning lights?

Based on the posts near the beginning of this thread, F32 controls the clearance/marker lights (it's not clear if anything else is powered by that). But if you continue to read this thread, that's not the only thing that makes the clearance lights come on. The BCM controls it as well. I guess I should ask - do you have your headlights (or parking lights) on? The clearance lights only work with headlights or parking lights.

The only other thing I can think of is a loose plug somewhere in the harness.

 

[YGarage]

Yes, the headlights are on, when I remove the fuse the only light that goes off are the license plate led light

 

[Eighty]

Yes, the headlights are on, when I remove the fuse the only light that goes off are the license plate led light

Then the fuse appears to be working (and isn't your problem). Is there anything else we should know - like did your dealer flash any new software lately, did you make any changes of any sort, did you disassemble anything on the truck, that kind of thing.
I'm leaning towards a disconnected wire (or harness plug that powers all the clearance lights), or possibly something that's making your truck think it's a regular 1500 DT (which doesn't have clearance lights, therefore the BCM wouldn't be trying to turn them on).

EDIT: Another question. Are ALL your clearance lights inoperable right now? All four fender corners, the hood intake markers, and the tail markers?

 

[YGarage]

So, the lights were working perfectly, I did install a ship from AFE power and then the lights stopped working out of the blue, I took the truck to the dealer to re-flash the BCM due to a recall. But the lights were already not working before I took it to the dealer

 

[Eighty]

So, the lights were working perfectly, I did install a ship from AFE power and then the lights stopped working out of the blue, I took the truck to the dealer to re-flash the BCM due to a recall. But the lights were already not working before I took it to the dealer

I assume you mean "chip" from aFe? If your marker lights suddenly stopped working after you plugged in the chip, then I'd put the chances at "pretty good" that this is your problem.
Is this chip specifically for the RHO? Like I mentioned earlier, there's a chance that your BCM is not trying to turn on marker lights because it doesn't think it has them (like a regular DT).

 

[YGarage]

I removed the chip to see if that was the problem and the lights are still not turning on, still no power to the cables just checked one of the plugs that connects one of the front side marker and no power there.

 

[Eighty]

I removed the chip to see if that was the problem and the lights are still not turning on, still no power to the cables just checked one of the plugs that connects one of the front side marker and no power there.

Not sure where the chip plugs in, but is there a chance you accidentally displaced a plug when you were installing it?

 

[YGarage]

I don't think so, the chip plugs in to the MAP sensor and the T-MAP sensor

 

[YGarage]

Everything is on but the clearance ones

 

[YGarage]

All of the clearance lights are off

 

[Bananarocket]

Everything is on but the clearance ones

I'm not a huge paint matched guy but I like this a lot.

 

[sparknv]

Going to post here to follow this. i notice it got derailed in this last page but im also very interested in the marker lights on with ignition... well i think i would rather wire them up to an aux switch that way they can be turned off when you want to go dark if ever needed but still.

 

[arob66]

Also posting to follow. I want to do exactly what @sparknv just said.

 

[122Repo]

Hey guys, first post here. Had the truck for a few weeks and getting the hood marker lights on is on my list. I read the entire thread, thanks for all the info so far.

I came at it from a slightly different perspective. To the extent I can I try to make all my mods non-permanent. Looking at the wiring for the lights the jumper cable (mopar part number 68567784AB ) is the only wire that comes down to the truck from the hood. It’s along the hinge at the passenger side (Pic 1). It then drops along the firewall behind coolant expansion tank (Pic 2) where it makes a connection to another part of the harness. The wire has 1 white and three black (Pic 3, but hard to see due to the electrical tape).

My thought is to build a mini-harness that can go in between the light wire and the truck harness. This mini harness would include a relay that would takes an input from the truck harness and a second input from my Aux4 that I have the Amber DRL on my M&R lightbar amber DRL.

This way if the truck turns the lights on the relay would close and the lights function as normal. But if I trigger my lightbar amber DRL via my aux switch, the hood lights would also come on. With that I can latch my aux switch so the lightbar amber DRL AND the hood lights would be on all the time.

Anyone see any problems with the plan?

 

[Eighty]

Hey guys, first post here. Had the truck for a few weeks and getting the hood marker lights on is on my list. I read the entire thread, thanks for all the info so far.

I came at it from a slightly different perspective. To the extent I can I try to make all my mods non-permanent. Looking at the wiring for the lights the jumper cable (mopar part number 68567784AB ) is the only wire that comes down to the truck from the hood. It’s along the hinge at the passenger side (Pic 1). It then drops along the firewall behind coolant expansion tank (Pic 2) where it makes a connection to another part of the harness. The wire has 1 white and three black (Pic 3, but hard to see due to the electrical tape).

My thought is to build a mini-harness that can go in between the light wire and the truck harness. This mini harness would include a relay that would takes an input from the truck harness and a second input from my Aux4 that I have the Amber DRL on my M&R lightbar amber DRL.

This way if the truck turns the lights on the relay would close and the lights function as normal. But if I trigger my lightbar amber DRL via my aux switch, the hood lights would also come on. With that I can latch my aux switch so the lightbar amber DRL AND the hood lights would be on all the time.

Anyone see any problems with the plan?

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First, I should mention that this only controls the hood marker lights (not the corners, rear, or mirror markers). If that's all you are interested in switching, then ok.

Also, I don't think you want two separate relays. At some point, you could be double-feeding the circuit and likely fry something (unless you install inline fuses, then you'd blow the fuse). If you wanted to do this, you'd need a changeover relay (one that toggles the power source).