Because of the complexity of an IC or integrated circuit (because of the diversity of components integrated in it) it is not possible to measure an IC to determine its state, it can only make a measurement between mass and VCC of the IC to see if it has no evident short, nothing else .... If I download the datasheet of the same with the one can only be attended to measure the voltages that have to feed the IC, if they are absent the IC may be short, if they are present it may be that they have simply stopped to operate, in this case of the two modes has to try to repair the device buying a new component ...