Battery effect electronics
Thread Starter
Racer
Joined: Jun 2007
Posts: 281
Likes: 1
From: Springfield MO
Battery effect electronics
I have an 03 with 17000 on it. Here are the symptoms;
pull key and wait 10 seconds - this has happened a couple of times in the last week.
memory location not remembering - the one and two button don't seem to remember and the fobs are not either.
passenger power window - as soon as I started it up last night I tried to roll down passenger window and it would not go down a either door switch, then a minute later it worked just fine.
So could this be a battery issue? I tested the battery car turned off and got a reading of 12.2, car on got 14.1. Car starts no problem even after sitting for a week or two.
Greg
pull key and wait 10 seconds - this has happened a couple of times in the last week.
memory location not remembering - the one and two button don't seem to remember and the fobs are not either.
passenger power window - as soon as I started it up last night I tried to roll down passenger window and it would not go down a either door switch, then a minute later it worked just fine.
So could this be a battery issue? I tested the battery car turned off and got a reading of 12.2, car on got 14.1. Car starts no problem even after sitting for a week or two.
Greg
Racer
Joined: Aug 2010
Posts: 358
Likes: 3
From: Brunswick Georgia
no it sounds right thats what mine is to. try disconnecting it because i know when i pulled mine once it made my cd player not shut off. then sometime it makes my light pop up when i connect the battery
Burning Brakes
Joined: Nov 2008
Posts: 764
Likes: 0
From: Arden NC
Not so. A good battery fully charged with no load on it (ie neg battery cable disconnected) will measure 12.7 to 12.9 volts or more.
Using the dash guages to determine the state of health of the battery is a useless effort. Key on and engine off and there are numerous circuits that are loading the battery so the reading on the dash guages means nothing. ( BCM and PCM to name two and there are others) Engine running and you read the output voltage of the alternator. Nice to know the alternator is charging the battery but useless in determining if the battery is good or not.
OP charge the battery and then get it load tested. Most parts places test free of charge.
Using the dash guages to determine the state of health of the battery is a useless effort. Key on and engine off and there are numerous circuits that are loading the battery so the reading on the dash guages means nothing. ( BCM and PCM to name two and there are others) Engine running and you read the output voltage of the alternator. Nice to know the alternator is charging the battery but useless in determining if the battery is good or not.
OP charge the battery and then get it load tested. Most parts places test free of charge.
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Hey Greg - take the battery to a place like AutoZone, O'Reilly's, etc and have them test the battery for you. Should be no charge and you'll know if it has a weak or bad cell in there. When the battery starts to go bad, you can get all kinds of weird electrical problems.
