First post here

I have been wondering what this black box is for. Its located on the driver's side fender right by the firewall. There is a harness that plugs into it, but it has been unplugged since I got the truck a year ago. The harness also has a red/pink and red/grey that were cut at the plug and spliced together.

Anyone know what it's for?

[IMG]file:///C:/Users/Eric/Pictures/Ram%201500/Photo0083.jpg[/IMG]

 

maybe its something aftermarket, my truck doesnt have that....

 

definatly looks aftermarket. could be a performance chip or maybe one of those fuel saver things. i would just take it out if it isnt being used for anything

 

what is the other end of that wire connected to?

 

it has the chrysler emblem on it, along with a long serial code. the way its bolted on also looks factory.

 

the harness leads into the factory wire bundle that goes to the cab and fuse box by the battery.

 

Take that serial number and google it or take it to a dealer and see what they can pull up.

It almost looks like a control unit for an alarm system from a newer Dodge. Even if you don't "think" you have an alarm, it could be disabled or something.

 

i think its for the daytime running lights. the factory service manual says that DRLs will turn on at 50% power when the vehicle starts moving or something like that. plug it in and start the truck to see if your corner lights are on. if not then wait until its dark and move the truck with the lights turned off to see if they come on by themselves.

 

That is exactly what it is. here is a link to the picture of the replacement part. https://www.partshighway.com/product...um=RNB-704-305

 

that's exactly what it looks like. But Why would the two red wires be cut and spliced together?