How possible is it and what all would be needed to swap and 06-07 computer into an 05? Reason number 1, the electronics on my truck have been acting up ever since installing a viper alarm. The canbus system acts up, I get lamp out on the dash even though the bulbs are all brand new. I think the alarm fried some things. Basically I would like to replace any and all wiring on the truck. But if I’m going that far why not add an 06-07 for efilive.
SCI (Serial Communication Interface) is Dodges' proprietary serial (one wire) computer bus system.
not sure what truck you have , but keep in mind, Early 03 are different from 03.5- 04, and some parts on 04.5 -05 are different, from 03.5-04.
The 06-07 use, 2 wire system with 3 CAN (controller area network) bus systems, for more computing power/bandwidth, supposed fault tolorence .
Basically all modules/wires/switches and electrical mechanical components, and some of the physical mounting/trim pieces on engine/body would have to be exchanged.
As far your issues,
The cluster sends signals for lighting/modules and monitors resistance in lights/wires/switches/modules, if it sees wrong resistance it will illuminate warning light.
The common issues for this are non OEM bulbs, wiring/connector issues, or issues with EMIC/FCM.
New batteries are good, but should also verify good connections including grounds.
Have you performed diagnostic test on ECM and cluster (EMIC)/FCM (front control module) ?
That would help narrow down, what is causing issue.