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OEM bed light kit issue

Dls160

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Long time reader, first time posting but need help with this issue. I own a 2020 RAM 2500 Laramie crew cab with the 6.7 Cummins. I recently purchased the OEM bed light kit (#82215795AC) and did all of the install myself except for wiring up to the module underneath the driver’s side of dash as I couldn’t reach it without disassembling half the dash. So I took it to the dealership where they also said the computer had to be reflashed to recognize the light kit. Well now the bed lights do not work properly.

1. The bed light switch won’t turn the lights on and off
2. When the ignition is in the on position the lights are on all the time and won’t turn off.

The dealership said they can’t figure out why this is and their only conclusion is that something went wrong when I installed the lights and harness myself, which I don’t agree with as I am meticulous by nature and spent a full day doing the install and can’t find anything wrong with the wiring harness. Thankfully, they are going to warranty the issue out and order another light kit, remove the existing and replace at no charge.

I’m just scratching my head as I can’t see how me running the wiring harness is the issue and more that it is receiving a constant power source and either they wired it wrong or didn’t program the computer correctly. If it was the wiring harness and it was damaged somewhere then I would think the lights wouldn’t come on at all. Has anyone else ran into this issue or have any additional guidance?

I really don’t want them to have to replace the existing one because I installed it along with my Amp Research power extreme running boards and had to pull the drivers side front wheel well liner out to install the Amp module under the fuse tray and wires through the firewall so the fewer times all of this is disturbed the less likely something else can go wrong.

Any help is greatly appreciated.

-Lane
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Sounds like they wired it to the ignition, nothing you did would cause this
 
Looks like you squeezed that sucker into the garage!!


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Looks like you squeezed that sucker into the garage!!


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Yeah there is about 5 inches of clearance in the front and back with one inch on top at the garage door opening. The 360 degree camera system really comes in handy when parking this thing. I went ahead and purchased two of the large rubber curb stops so when backing in I just bump them and they stop me from hitting the wall. Works like a charm.


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I had the dealer install the entire kit for me but the bed switch didn't work out of the box. The lights turn on properly with the cargo light button in the cab but the the bed switch is useless. The dealer is replacing the switch under warranty so fingers crossed it isn't incorrect wiring or a bad flash to activate the feature.
Hopefully they figure your issue out too.

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Last edited:
Look through this thread:

Pay particular attention to the Author and Jimm07 and try to skim through all the off topic posts.

 
P.S.

A lot of frequently asked about mods and AlfaOBD settings are linked here:

 
I had the dealer install the entire kit for me but the bed switch didn't work out of the box. The lights turn on properly with the cargo light button in the cab but the the bed switch is useless. The dealer is replacing the switch under warranty so fingers crossed it isn't incorrect wiring or a bad flash to activate the feature.
Hopefully they figure your issue out too.

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I know this is an old post, but did you get this issue resolved? I’m having the same issue with the bed light switch not working.
 
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