Re: Battery draining... - Saab Sonett Bulletin Board - Saabnet.com
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That should be easier on the Sonett vs. new cars with computers all over the place.
Take your multi-meter, set to measure current (amps). Go to the fusebox, put one meter-lead on the spring-terminal on each side of a fuse. When you remove the fuse, any current that was flowing through that fuse is now flowing through the meter and being measured. Do this for all your fuses one at a time.
Each fuse should pretty much read zero amps as long as everything is switched off. If any fuse reads anything, try to explain it. Your clock should draw a very small current. Anything like 0.1 amps (100 mA) might be a small light bulb that isn't turning off (glovebox?).
This way you narrow down your search to the stuff that's powered through that fuse.
A large lamp like a headlight is 55 watts or about 4.5 amps. If some flaky cross-connection with poor contact sends 0.2 amps through a headlamp, it won't even glow dim orange. But it'll drain the battery.
I don't know if you're a audio-guy, but if you have component stereo stuff in the Sonett, make sure that all the modules are actually turning off. Some amplifier that doesn't switch off might be the culprit.
Posts in this Thread:
- Vintage Electrical Problem - Sonett Taillights, Scott Paterson , Sat, 16 Sep 2017 11:02:17
- Re: Vintage Electrical Problem - Sonett Taillights, juanm , Sun, 24 Sep 2017 16:55:201
- Re: Vintage Electrical Problem - use dielectric grease, Jim H, Sun, 17 Sep 2017 09:15:46
- Re: Vintage Electrical Problem - Sonett Taillights, 900T , Sat, 16 Sep 2017 16:59:09
- Housing..., Scott Paterson , Sat, 16 Sep 2017 19:57:11
- Re: Vintage Electrical Problem - Sonett Taillights, Bradley Burns, Sat, 16 Sep 2017 11:55:031
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