Hello all
I?m swaping from a 6l80 to a 4l80 in a 2011 5.3 SCSB.
I got a harness (4l60) an t-42 out of a 08-09 truck.
I?m wiring this in an everything matches up correctly except for the X-109 connector.
08-09 truck had as follow
Tan/blk- A8
Tan-A6
D-blue- B8 also goes to pin-18 ecm X1 Along with TCM- pin 11

My truck x-109 as follow.
Tan/blk- A8
Tan-B8
D-blue- unknown

Dark blue is accessory wake up serial data
Tans are can bus wiring.
I believe but was getting late last night that A6 dose not have any wires on the plugs mate. Will verify.

Anyone have any experience with this? What should be done with said wiring to keep things happy.

Thanks!