[RCARON]

Last winter I pulled a 10cylinder from a 3500 and replaced it with a 12 valve cummins.
I replaced the engine wire harness and pcm, but left the in cab wire harness from the 10 cylinder
I have a few dash lights that stay illuminated(brake, 4x4,airbag,ABS)
They may have been illuminated before i pulled the 10 cylinder motor
i also cannot pull codes as the truck is a 97 and the engine is 94
how can i troubleshoot to correct these lights?

Note: the truck runs very good, brakes are good etcc.

thanks in advance