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Re: My Battery Keeps Dying!
>I have a 1988 90 that I bought a few months ago. All was well until a few
>days ago when I left the rear defroster on. It stayed on while I was at work
>and drained the battery. Today I go out and the battery is dead again.
>Nothing was left on (that I can see). One recent development is that the red
>lights on the door handles that display the window switches will not go out.
>This is also true of the seat heater lights on the center console. Are there
>any ideas as to what is going on and why? This is becoming a big hassle.
My money would be on the circuit that feeds the power windows. The
rear window defroster in my car ( and probably yours ) is fed through
the "load shed" relay, and will be disconnected when the key is
removed. The seat heaters do the same.
However, the power windows have a bypass that allows you to run
them even after the ignition switch is removed, until the
DRIVER'S SIDE DOOR is opened.
I'm still puzzled how your seat heater light stays on.
Other possible drains:
1. The pump that pumps coolant after the engine if off ( turbo only )
2. Any of the fans, the injector fan, the radiator fan ... that run on.
3. The vacuum pump that powers the pneumatic door locks