For the record. There are 2 “stable” versions of code on R2LC’s; C08 & C13.
C07 code is stable, but headlight polarity is reversed, so its really only designed for 1 production run of C-420’s, refer to the exploded view diagram to see what models this applies to.
There are also R4LC’s with “C08” code on them, which will work in all TMCC 1 applications as well (these are typically sold by ERR).