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Old 07-17-2011, 04:34 PM
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Join Date: Jun 2011
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Question 1983 380SEC electrical issues

I'm have some electrical issues with the 380SEC I'm working on.

1st the battery is draining after a couple of days of sitting. It's a new battery.

2nd The radio was working, but wont turn on now. The fuse is good.

Could these issues be related?

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Old 07-17-2011, 05:14 PM
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Sure. Simple test:

Remove the + cable from the battery. Get a small test lamp (a couple watts) and hook it between the cable and battery. If the light glows brightly you know something is drawing at least as much power as the light is rated for. Disconnect fuses on at a time until the light goes out. You don't have to totally remove fuses, you can just lift up on the tabs to disconnect them for a moment.

When the light goes out you have found the circuit which is drawing the current. You can continue your troubleshooting from there.

-J

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