My question is this: Is the light warning me when it is on or off? We have only had the car running the last little bit and the light has been on the whole time. The battery has not given us trouble and the car starts readily and runs well. 62 Sprite MKII but it may have had the wiring tweaked at some point. The light is on the tach, but the diagrams I have show it on the speedometer. I have the older mechanical tach. Is it possible that in changing an ignition switch or switching around the wires that the system is still charging but that the light is on? Next step is to find out if the generator is putting out and how the *#$#*(translated idiot) light works!