Battery Drain
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7th Gear
Joined: Mar 2014
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Battery Drain
I have been having trouble with battery dying If I only drive it once a week. Brand new battery still doing it. Just wondering how much current is needed to power computer when vehicle is turned off. I measured current draw at battery and I am showing .35 amps. I removed horn relay and draw dropped to .12. Odd since horn hasnt worked in years. Harness in steering wheel disconnected. Just wondering what kind of current draw I would see at the batter on a 1996 f150 5.0l v8. 2 wheel drive with ignition turned off.
Lead Driver
Joined: Jan 2003
Posts: 9,893
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From: Ohio
Barely anything, surely not .12 amps. I would go through the fuse and pull each one til you find the other current draws.
Sounds like horn relay was stuck(or your horn button is) and the horn itself was shorted and drawing power.
Sounds like horn relay was stuck(or your horn button is) and the horn itself was shorted and drawing power.
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fishindave11
1973 - 1979 F-100 & Larger F-Series Trucks
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Nov 10, 2008 06:16 PM
