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Mtrob

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  1. Mtrob
    My 2000 silverado 5.3 4wheel drive keeps running the battery down. With using the Power Probe tester plugged into OBD port then battery neg disconnected im showing a draw of 130mA. It should be below 40mA. The drain goes away when I unplug the horn relay. The horn is disconnected. So with that test it is after the relay between it and the horn. Is there anything else on that circuit?
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