2002 Citroen Xsara hazard warning lights not working

could someone help me i recently had a hazard warning light problem (they wouldnt switch off), after numerous atempts to fix it i had to send my BSI module off to bba reman for evaluation. they reported a chip fault and repaired the unit, but replacing the chip means that the bsi unit must now be totally reprogrammed via citreon. the problem i now have after paying citreon to download all cars parameters is that the hazard warning lights will not work at all!! via the hazard switch, ive tested the switch and it seems fine.Everthing else on the car is fine just that the hazard warning lights will not work!! when locking the car or unlocking the car the car does put on all the indicators to show that the car is locked or unlocked so im now at my wits end and do not know what the problem is. could i have another fault on the BSI module? could some one please help!