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93 legacy electrical short problems
Posted 04 July 2004 - 10:25 AM
My question is: This short circuit problem caused my battery to run down a dozen times or so . My battery does not seem to want to hold a charge for more than a day . is there another short? or should I replace the battery ? how do I test the battery
Posted 04 July 2004 - 11:09 AM
Posted 04 July 2004 - 05:31 PM
the battery is 4 month old ! and what is so rhetorical about the question ?
It is my understanding that every time a regular ......car battery is fully discharged it loses 10% of it's capacity. So, if you have run your battery dead 10 or more times it is basically junk. Batteries are cheap and need to be replaced periodically anyway, so that is where I would start.
Posted 04 July 2004 - 09:19 PM
Yes, it's possible to destroy a 4 month old battery.
The battery can be analyzed and load tested by most major auto parts chain stores, like Advance Auto Parts.
Checking for shorts involves placing a voltmeter between the negative battery cable and the negative battery post. There should be 0 volts, theoretically. Things like the ecu, clocks, and radios (things that are on all the time or have 'memory') will cause some draw, but only in milliamps, it would take months to drain the battery. Defeat these devices, and check the voltage. If voltage is there than ciruits on the car should be disabled (by pulling each fuse) one at a time until the leakage can be isolated. Then you have to go through each part of the circuit until you find it.
Boy, that was incoherent. Good luck!
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