Peter, With the battery fully charged and the key off, unplug one battery lead and then plug it back in. Do you get a little spark? Does the battery stay at 12 volts with the cable unplugged for a half hour? If not I'd be thinking battery. If It's still at 12 volts reconnect and let it set for another half hour(with key off). Now if it has dropped a volt, I'd be looking at a drain in the Asuzu, a light on, a faulty ignition switch, etc. If the battery stays at 12 volts for over an hour with cables connected, then I'd be looking at the charging system
- posted
20 years ago