My daughter's 1990 Corolla appears to have a dead alternator, but I'm not positive. Battery voltage is low - 11.2V. I can start the engine with jumper leads, and the voltage keeps going down with the engine running, so obviously the alternator has no output. What is strange is the battery discharge light on the dash doesn't come on under any conditions. This sort of suggests either a blown bulb or wiring open circuit. The charge fuse in the engine bay is fine, as are all the other fuses. Assuming the bulb is blown, does anyone know if this forms part of the alternator circuit - ie does a blown bulb stop the alternator working? From past experience I know alternators tend to fail in these old Corollas, but I hate to buy a reconditioned unit, and find out it is something cheap & simple.