I have been having issues with my 06 Street Glide throwing codes and speedo and tach freezing up

I have been having issues since last spring when I tore the entire bike down for paint and powder coat. When I pout it back together I hooked up 2 of the connectors inside the fairing wrong but everything else seemed ok after I found the issue

I have checked the codes and am not sure where to go from here. I understand that the speed sensor is a common fault but I am also wondering about the TSSM.


P = ECM/ICM(Electronic Control Module)[EFI] /Ignition Control Module[Carbureted])
P1356 Rear Cylinder No Combustion
U1097 Loss of SpeedometerSerial Data to ECM


S = TSM/TSSM (Turn Signal/ Security Module)
B1121(TSM) Left Turn Output Fault
B1122(TSM) Right Turn Output Fault
U1255 Serial Data Error
U1097 Loss of Speedometer Serial Data to ECM

SP = speedometer
U1255 Serial Data Error
U1016 Loss of ECM Serial Data
U1064 Loss of TSM/FSFM Serial Data to ECM


T = tachometer .
U1016 Loss of ECM Serial Data

 

update.

I reaized that the b1121 and b1122 were because of the led turn signals I installed so that is not an issue.

First I pulled the VSS out and it was clean all I got on the white towel was oil residue.

Cleared all codes and went for a 1/2 mile test ride and still had codes

I replaced the TSM with a new one from the dealership and went for a 1/2 mile ride and I was still getting codes.

Returned the TSM to the dealership and bought a new VSS and installed and went for a 70 mile ride and am still getting the following codes


U1016 Loss of ECM Serial Data
U1064 Loss of TSM/FSFM Serial Data to ECM
U1097 Loss of Speedometer Serial Data to ECM
U1255 Serial Data Error

What is the next step? an new ECM?