Make sure the light in the storage compartment is OFF....those things can stay on sometimes.
Other things in that circuit? Heck yeah....ciggy lighter, and the light for the clock are both on that same fuse/circuit.

courtesy light timer could be the culpret

Thanks Joel and Bob. I'll check the thins you mention - specially cig lighter and compartment light. Bob, I don't think mine has a timer - lights go off as soon as doors are closed. Two other questions: could it be the "door ajar" light? Or the "key in" buzzer? Both have had some issues lately.

Yep...the ZX2 "Convenience" option, which included the dome light delay, dint go into the cars until '77.

The "Key in" buzzer could certainly cause a problem, but you should be able to hear it...and it is kinda in the same circuit as the courtesy lights, since it uses the same door pin-switch to provide the ground for the buzzer. However, the buzzer gets it's power from the brake light circuit....which is on a different fuse.
The "Door Ajar" light should also be tied into the door pin switch circuit somehow, but it aint showin on the wiring diagram, for some reason....

Thanks, Joel.  I've narrowed this down now in that I know it's not the clock or the lighter as both are unplugged and I still draw .33 amps.  I'm guessing I've got some damaged orange wire somewhere in the courtesy light circuit that's allowing that amount of current to go to ground.  Or if the key-in buzzer or door ajar lights are somehow drawing the current maybe that could be it. More diagnosis - yippee.  

Sorry for the many posts on this topic, but I think I'm getting closer.  Underneath the steering column there is a connector for the harness that leads to the back of the car - tail lights, cargo area light, fuel gauge tank unit, etc.  Unplugging this connector makes the current drain go away. It also turns off the cargo area light and the storage compartment light but leaves the front courtesy lights on.  Since I previously identified that removing the courtesy light fuse also eliminates the current drain I think I pretty much now know that the drain is either in the wiring between that connector and the lights or there is a problem with one of the lights themselves.  Sound reasonable?  Now to locate that fault exactly and fix it... 

Dave-

And I have the pics to prove it..... 
It's good that you have narrowed it down to the rear harness. My money is on the storage compartment light....try removing that bulb and see how that works on the drain. If it doesn't change, then you may very well have a small chaffed wire somewhere in that harness, quite possibly where it runs under the trim plate next to the seat.

Touche' Joel

Wha'd you call me??!

Jest for that.....



I hate diggin for parasitic drains...such a pain...disconnecting components one at a time, especially if you have to have the door closed, considering where the dang fuse box is on these cars....