2019 HD Tail lights in a 4th gen

[Ram7081]

Well I got everything wired up now. Just put in some temporarily LEDs to get the BSM up and running. Unfortunately there is one issue, every time I start the truck, I get a message saying that BSM is turned off even though it is actually on. Everything appears to be working as it should (at least I can confirm cross path detection was working properly as it was going off as cars drove past my driveway as I was trying to back out). I guess this is an issue related to the 4th gen ‘Classics’ without a solution yet which kinda sucks.

Does the harness work with BSM?

 

[DoughRat19]

Does the harness work with BSM?

I got mine working with the help of @Roman217.

 

[Ram7081]

I got mine working with the help of @Roman217.

I reached out to him and no reply.

 

[loki223]

Not to hijack, but since i know @Jimmy07 frequents over here more often then my normal forum, i'll bug him here too. And this is somewhat on topic as well so yeah. I've already put 19 tail lgihts with BSM on my 18, but looking to add the Boost 23+ Tow mirrors onto my 18. Debating between getting 19+ tow mirrors and repinning them, or getting 18 mirrors and adding the BSM wires to them. I'd prefer to go the 19+ method so i don't have to crack plastics on brand new mirrors and have more random mirror glasses laying around that i don't need. But here is what i've layed out on the wiring conenctors, and there are a couple extra wires on the 19s then seem important, but i don't co-relate over to the 18s So wanted Jimmys input. Mostly the switch sense, and sensor ground where they should go on the C1/C2 pins for a 13-18

Door Module​	Position​	Circuit​	Function​	2018 SPOT​
C1​	1​	P705​	HORIZONTAL LEFT SWITCH SENSE​	​
C1​	2​	P703​	MIRROR COMMON DRIVER​	C2-8?​
C1​	3​	P701​	VERTICAL UP SWITCH SENSE​	​
C1​	4​	L701​	MIRROR PARK LAMP FEED​	PUDDLE?​
C1​	5​	NO​	​	​
C1​	6​	L801​	TRAILER SPOT LAMP FEED​	NO​
C1​	7​	L702​	TRAILER PARK LAMP GROUND​	C1-3​
C1​	8​	NO​	​	​
C1​	9​	NO​	​	​
C1​	10​	L802​	TRAILER SPOT LAMP GROUND​	NO​
C2​	1​	P501​	MIRROR TURN SIGNAL DRIVER​	C2-9​
C2​	2​	C160​	MIRROR HEATER RETURNB​	C2-3​
C2​	3​	P551​	MIRROR APPROACH LIGHT​	C1-1​
C2​	4​	P161​	MIRROR TOW POSITION SIGNAL​	C1-6​
C2​	5​	P593​	MIRROR LAMP GROUND​	C2-10​
C2​	6​	C16​	MIRROR HEATER DRIVER​	C2-4​
C2​	7​	P711​	BSM INDICTOR DRIVER​	C1-3​
C2​	8​	P73​	MIRROR COMMON DRIVER​	C2-7​
C2​	9​	P71​	MIRROR VERTICAL DRIVER​	C2-6​
C2​	10​	P75​	MIRROR HOIZONTRAL DRIVER​	C2-8​
C3​	1​	G31​	AAT SIGNAL​	C2-5​
C3​	2​	A856​	5 VOLT SUPPLY​	C1-10​
C3​	3​	P65​	MIRROR HORIZONAL POSITION SIGNAL​	C1-9​
C3​	4​	P69​	MIRROR SENSOR GROUND​	C1-8​
C3​	5​	NO​	​	​
C3​	6​	G931​	SENSOR GROUND​	?​
C3​	7​	NO​	​	​
C3​	8​	P67​	MIRROR VERTICAL POSITION SIGNAL​	C1-7​
C3​	9​	P694​	POWER FOLD DRIVER​	C2-1​
C3​	10​	P691​	POWER FOLD MIRROR UNFOLD DRIVER​	C2-2​

Also, side bar with the mods here, this seemed like the most relevant thread, but if there is another more popular thread this would make more sense in handing out in, feel free to move

 

[loki223]

I feel like moving C3-6 to C2-8 would work, and pairing that ground with the P69 circuit?

but that still makes me wonder what the P701 and P705 circuits, where would they need to go for everything to be happy? Maybe the all knowing @Jimmy07 will chime in shortly I could use Boost's wiring box for the spot light (L701) or run my own wire