mikeflys1

iTrader: (2)

Something on that fuse is killing my battery if the car isnt driven for more a couple days. Is there anything on that one thats commonly a problem?

So far checking it out I had the interior light off and the megasquirt and its harness disconnected and theres still a pretty strong draw on the battery.

quadmasta

iTrader: (1)

Aftermarket radio? Aftermarket gauges? Did anybody but you do something to the car (previous owner, etc).

mikeflys1

iTrader: (2)

stock bose radio, no other gauges, no alarm....i really dont get it.

quadmasta

iTrader: (1)

This might seem dumb, but are all of your interior lightbulbs working? Also, if you've got the bose radio, you've got a bose amp which is likely on that same circuit. It could be sticking on.

mikeflys1

iTrader: (2)

hmmm i didnt even think of an amp...where is that located? all the lights in the dash and the overhead light work.

quadmasta

iTrader: (1)

I have no idea. Bose sucks In Nissans there's an amp at each speaker. In Toyotas there's an amp for everything but the subwoofers, then each subwoofer has its own amp on the speaker.

jedduh01

iTrader: (4)

trunk light?

quadmasta

iTrader: (1)

do NBs have one?

jedduh01

iTrader: (4)

I don't know for sure. Just a random draw.. but def, seen it before, I know my 90 doesn't, but I had a 97 and it did.

mikeflys1

iTrader: (2)

no trunk or engine bay light

quadmasta

iTrader: (1)

I say amp. Have you pulled the fuse and figured out what didn't work?

mikeflys1

iTrader: (2)

looking the at the wiring diagrams, the amp isnt on the room fuse.

mikeflys1

iTrader: (2)

:sadpanda:

quadmasta

iTrader: (1)

Unplug the radio and see if the problem goes away.

icantthink4155

iTrader: (12)

...dead bulbs drain the battery!?

quadmasta

iTrader: (1)

Depends on the type of bulbs. I've seen it happen before with the ones that look like AGU fuses.

budget racer

iTrader: (1)

please explain how an open circuit can cause a voltage drain. i'd love to hear more.

quadmasta

iTrader: (1)

I've only seen it in older cars like the Volvo 240. The bulbs have a wierd filament that'll break enough to not light up anymore but not enough to conduct any electricity. Some of them even have a little piece of wire that connects the end terminals together. The only ones I've seen draining a battery had that wierd shunt thing in there and they somehow shorted the circuit.

budget racer

iTrader: (1)

huh?

Joe Perez

iTrader: (8)

Based upon this quote, I assume you're using an inline ammeter? If so, it should be very simple for you to track this one down.

The room fuse, which comes through the Main and BTN1 fuses and is hot at all times, is pretty much used only for keepalive circuits- it's only a primary supply to a couple of things. It powers:

1- ECU keepalive, L/R @ pin 1A. (page B-1a)

2- Key reminder switch and instrument cluster keepalive, L/R at pin 1F. (Page C-a)

3- TCM keepalive (A/T only), L/R at pin AR. (page H-1)

4- Dome light. This is a primary feed. L/R. (page I-3)

5- Radio keepalive, both normal and Bose (but not the amp), L/R at 1C (pages J-1 and J-2)

6- Power antenna. This is a primary feed. L/R. (page J-3)

7- The OBD-II connector, L/R (page U) Note that the old-style diag connector in the engine bay gets its power from the engine fuse.

Of all these, the power antenna seems like a very good candidate for a parasitic drain. If the limit switch has died, that tiny little motor will be trying to operate continuously.