Battery drain when everything off

I have a 1995 Suburu SVX which shows a current of ~1 A with the engine switched off and nothing else on. I tested this by putting an ammeter right at the battery in series with the ground lead. I realize the computer and even the radio require a small amount of standby power, but this seems excessive.

I have tried removing all fuses, one at a time, with no change in the current. I've looked at all the usual suspects like glove box and trunk light. This occurred after the replacement of a knock sensor, which was causing the "Check Engine" light to stay on, but may not be related. A previous similar fault was caused by a bad electric door lock circuit, but disconnecting that does not help. It passed the California smog test OK, but the current is enough to drain the battery in a day or so.

This is my fourth Subaru, and I've had manuals for all but this one. I'm not sure a wiring diagram would help, but I don't have even that!

Any ideas?

Virg Wall

Reply to
VWWall
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Completely disconnect your alternator and see if the drain is still there.

SD

Reply to
Stewart DIBBS

It could also be the security system which I believe is behind the glove box in the SVX

Reply to
dhf

Hi, Start pulling fuse to narrow it down. I hope it is not caused by a shorted wire(real hard to find).

Reply to
Tony Hwang
1 amp isn't a whole lot. Got a clock? Security system? Remote start capability? All of those stay "on" to keep time, be ready to receive commands, etc.

Also check the brake light switch. I have had those go bad (get electrically leakage) >

Reply to
Rune

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