B1792-11 and B1208-11 codes

[satcomtim]

21 Ram 1500 Limited with 46k miles:
Getting a warning on dash that left rear blinker is out (it's not) and left rear running and reverse lights are always on (even when no other lights are on the entire truck are on) and stay on for ~5 mins even after truck is shut off.

Codes:
B1792-11: Left Rear Lamp Diagnostic Line-Circuit Short to Ground
B1208-11: Anti-theft Indicator-Circuit Short to Ground

I know its not in the tail light housing as I've swapped the rear tail lights and problem remains on left side and not with the left tail light assembly.

Anyone have access to service manual to find the common point between these 2 codes? Assuming its in a harness somewhere. Trying to avoid the dealer if possible.

Thanks!

 

[Cbty2050]

I'm going to go out on a limb here and say they are not related. They both have a common area as in BCM. I would check the inline connectors at the LR corner.

 

[satcomtim]

It got worse. Just dropped off at dealer. Guessing the BCM is the issue. No center stack, no hvac, no windows or locks, no running boards, a bunch of other things not working as well

 

[Cbty2050]

Could be BCM or any module taking the bus out, I'm guessing a blind spot module is shorted out

 

[satcomtim]

3.5 weeks in the shop and just got it back. They put in a 68488850AB (WIRING. Jumper. Tail Lamp. Left) and said they had to pin a couple other connectors.