The fan for interior of my 15 plate DS3 e-hdi plus 1.6 diesel had suddenly stopped working. A friend has tested the electrics and states there is no power going to the fan. It has been suggested this is a resistor problem. I've checked fuses and they are fine. Anyone had this problem and if so how did you solve it? Also I might try changing the resistor anyway. Where would I find it on my vehicle? Thanks