Re: problems with k12lt 04 immobiliser
Do I understand from your post you have replaced the ABS pump or do you mean by "swapped out "you have removed it and bypassed it ?
Low battery volts cause chaos on these bikes so that would be my first suggestion. Get the battery sorted first.
Re-reading your post sounds like the ABS $$$$ was replaced. Maybe some connections went south during assembly.
Also with respect to Dean, I have often had the battery disconnected on Jenna ( for many many months at a time ) and the alarm has retained all the previous settings. Having said that, they do have a separate internal battery (charged by the bikes system ) to power the unit and I guess that helped. YMMV
If the Alarm LED is still flashing as you said, perhaps in a default mode, then reprogramming it with the fob may help.
I'm sure JZ will chime in and have the answer.
Jenna: Ocean Blue '06
Hilton: Head of the Steering Committee.
Rena: The Committee.
ET4 Thing 1
ET4 Thing 2