Toyota Repair: 92 toyota 22RE 4c truck, toyota 22re, neg terminal

Question
The lights are dimming, battery is draining, replaced alternator but still have a drain. Where should I look first with all the relays,ignitor coil, voltage reg,wiring etc...?

Answer
If the battery is known to be in good condition then I would check the system for an electrical current draw with everything turned off, this can be done by connecting an ammeter between the negative battery terminal and the battery connection, the neg terminal is removed and the ammeter connected in series with the battery post and the terminal.Any current draw of .3amp or more is a sign of a problem and can drain the battery down.