1987 Toyota Pickup

Hi there,

You will have to do a current draw test, place an Amp meter between the battery (+) and the cable removed this will show any current draw, with key off and door s closed you should have about.1-.25 amps max if more, start to pull fuses to locate circuit drawing power. The alternator may be leaking ton earth (this will not affect charging a lot) but pull off main alternator cable as well to see if the current draw is there.

Mark (mhpautos)