I got this off Ross Tech.........
Did these specific bulb circuits you're experiencing problems with work
before the cluster retrofit? If so, my only suggestion would be
checking the 17-Instrument clusters Adaptation values in channels 060,
061 and 062 since they contain the internal installation list.
Outside of that, the Central Electronics module does not contain coding
options for the lamp check, so I'm not sure what else to recommend.
Right so I still cannot get to the bottom of the after the DIS retro. It wasn't a cluster upgrade , just a DIS retro.
Anybody got any ideas?