Rear Heated & Ventilated Seat Connectors

[brental1]

Wow. We just need to trace the wires from the rear seat to the nearest junction. Color by color. We may end up having to splice into existing wires.

My problem is that there are no existing wires in my truck for rear heat/vent. If the junkyard would have given me the front portion of the harnesses, with the connectors intact (that plug in around the IP) I would have known what to do. I called back and requested a quote for the front part of the harnesses. Was told the body had already sold!

 

[brental1]

You REALLY need to get a three day subscription to techauthority, and pull all of the wiring schematics and connector locations.
On another note, is there a reason you didn’t just remove your current body harness, and install the donor harness instead? That would have been much easier if you already had a fully loaded donor body harness.

I just tried to subscribe to rechauthority. Site is asking for a dealer code. Is there another way to get it? Thanks, Brent

 

[billfraley]

I had the console apart yesterday so I compared all the connections on the console harness to what my Bighorn harness has pinned. I discovered at least two circuits that need to be pinned for the rear seat heated and vented seats. Circuit A207 is the Fused B+ for the switches in the center console. Circuit D403 is the LIN BUS CBC 3 connection used by the seat switches and the wireless charger. I plan to add the fused circuit from the 12-volt outlet on top of the radio bezel. The LIN BUS circuit is the same BCM connector C5/E pin 45 connection in the Mopar instructions for adding wireless charging. So this can also be connected fairly easily. The remaining and unknown connection is circuit M124. I believe this may be the backlighting circuit for the seat switches, but I have not found it in any connector as of yet. See attached

 

[billfraley]

Update, I found circuit M124 in another connector, but I have no idea where or what this connector is for.

 

[brental1]

I had the console apart yesterday so I compared all the connections on the console harness to what my Bighorn harness has pinned. I discovered at least two circuits that need to be pinned for the rear seat heated and vented seats. Circuit A207 is the Fused B+ for the switches in the center console. Circuit D403 is the LIN BUS CBC 3 connection used by the seat switches and the wireless charger. I plan to add the fused circuit from the 12-volt outlet on top of the radio bezel. The LIN BUS circuit is the same BCM connector C5/E pin 45 connection in the Mopar instructions for adding wireless charging. So this can also be connected fairly easily. The remaining and unknown connection is circuit M124. I believe this may be the backlighting circuit for the seat switches, but I have not found it in any connector as of yet. See attached

My notes are confusing to me now, a year later; But:
Pin 1 is not shown on the list I printed. List starts with Pin 2. But, for some reason I decided I needed it. It's a RD/BL and I "spliced to PK/YL in truck" .Probably should have connected it to a Power Distribution Connector? It does not appear to be "Lamp Driver" as your list shows (seems it's Fused Ignition). And, now, I'm wondering what's the difference amoung Pin 1-Lamp Driver, Pin 6-Panel Lamps Driver, and Pin 7-Reading Lamps Driver.
Pin 5, OR/DB was in the donor harness. and I added it to my truck Note says ":Heat Seat Switches X 2. " I didn't document where it originates.
Pin 8 is not on the list I printed; and I have no wire in that pin now.

 

[billfraley]

Pin 5 comes from the BCM connector C5/E pin 45. It’s the same bus connection used by the wireless charging pad.