When door handle light is activated or deactivated it shall be dimmed up/down. Four steps, evenly spread out over the total dimming time, (DimUpStep1, DimUpStep2, DimUpStep3, DimUpStep4, DimDownStep1,DimDownStep2, DimDownStep3) configurable by Volvo shall be interpolated. Zero % is the start value.The fourth and last value, DimUpStep4, is the end value of the dimming (gives possibility to control the light intensity).When dimming down, dimming shall start at end position for dimming up (DimUpStep4) and dimming shall end at zero % (DimDownStep3 is not the end position). The three steps shall be evenly spread over the dimming time.