UK Car Repair: 2003 Vauxhall Combo Courtesy Lights, vauxhall combo, courtesy lights

Question
I have an 03 Combo and the courtesy lights have sytopped working. I have checked all of the bulbs and they are OK. The fuse (24) also runs the radio and its ok. I have checked the door switches (front and rear) and they appear to be working>
Can you help. Thanks

Answer
DOES THE LIGHT SYSTEM HAVE A DELAY FUNCTION AND/OR DOES IT WORK WITH THE REMOTE KEY?  EITHER WAY, THERE IS LIKELY ANOTHER FUSE THAT FEEDS THE SYSTEM SO CHECK ALL OF THE FUSES. OTHERWISE, YOU HAVE A BAD TIMER RELAY OR THE SECURITY SYSTEM HAS TO BE REPROGRAMMED.