Help with Peugeot 406 central locking problems

[Captain Crunch]

Hi all, does anyone have any suggestions on what might cause both front locks to show as unlocked on planet when they're physically locked? When physically unlocked they show as locked on planet so whichever physical position the locks are in the BSI seems to think the opposite. I wondered if virginising the BSI and starting again might solve the issue? The car is a 2002 Peugeot 406.

[Zmann]

Is the BSI of Valeo with yellow label ? Find another good CD3 or CD4 BSI and test. Remove dash board and test lock/unlock by key if the problem persist it's likely BSI problem.

[Captain Crunch]

Is the BSI of Valeo with yellow label ? Find another good CD3 or CD4 BSI and test. Remove dash board and test lock/unlock by key if the problem persist it's likely BSI problem.
Thanks for the response. Yes, it is a valeo BSI with yellow label. I've tried two BSI's now (cloning the eeprom) but still the same result. Do you think cloning the BSI could be transferring a software issue across?
I will try writing the original dump from the new BSI back to its eeprom and try it again as suggested.