I'm not exactly sur what happened with your last expert.
I can assure you that you won't wait over 24 hours for a response from me at anytime.
At this point with all the devices effected and there intermittent use your not looking at an issue related to power or grounding. The intermittent use is more then likely connected to either a poor connection at the ETACS unit or a damaged driver in the unit itself causing intermittent operation.
On this year model you should be able to simply replace the ETACS unit itself and avoid key registration issues. The key registration should be tied to the immobiliser and PCM confirmation only. The FOB on the other hand (if applicable) would need to be reprogrammed for central locking operation.
In all reality though at this point, with so many different circuits effected and their intermittent actions, i cannot see anything other than the ETACs unit being at fault here unless you have serious damage or corrosion to a main harness, which is unlikely because it would genreally cause fuses to blow in the process.
Please let me know how else I can help.
That's certainly a concern, because unless there was rodent damage, then you will need to check for relay initiation from the front module since you already replaced the stalk which was the most likely issue in the first place.
Does your L200 have the FCM (front control module) connected to the power distribution block at the drivers fender?
The FCM should be connected to whats known as the IPDM on the drivers side fender. This fuse panel incorporates a CPU and built in relays for the lamps and wiper functions. The dodge dakota, mitsubishi raider, and I assume L200 all interchange in this aspect, but I just want to be sure as the L200 is not a US variant.