Well, after charging the battery on trickle for a couple days I went back to check DTC codes again. I had to clear the ones still present from when the battery was low. After that I had on DTC present in the TCM this was P2313 "Ignition Coil 5 Circuit High". I then tried to connect to the SLA module as the scanner showed it as an option however it said "Unable to establish communication. Verify the connection at the DLC and that ignition is ON....." I am not sure if this is due to the scanner in general not able to communicate with our cars or if there is a problem with the SLA. It was able to communicate with the TCM though so I'm not sure. Scanner used was an INNOVA 5410. Based on my original research and similarities to other threads in addition to all of my CAN BUS connections seeming to be ok I am leaning towards a fault in the SLA itself. Is there anything else I can test with the SLA other than CAN BUS communication at the connector?