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Charging System Failure Help??

2005GrandPrix

2005GrandPrix

New member
every once and while like turning the turn singal on or blowing the horn the failure charging system light comes on for a secound. whats the cause of it?? car is a 2005.
 


2005GrandPrix said:
every once and while like turning the turn singal on or blowing the horn the failure charging system light comes on for a secound. whats the cause of it??
Click to expand...

The warning indicates that your alternator voltage is dipping below your battery voltage.

Most likely you need a new alternator.
 
I get this message too... sometimes a few times a day and other times I go months without seeing it. I got my battery and alternator tested at advanced auto and they said both were fine. I'm not sure though because all the electrical of my car have randomly shut off and immediately back on while I was driving twice in the past 3 months too.
 
nyydmb12 said:
I get this message too... sometimes a few times a day and other times I go months without seeing it. I got my battery and alternator tested at advanced auto and they said both were fine. I'm not sure though because all the electrical of my car have randomly shut off and immediately back on while I was driving twice in the past 3 months too.
Click to expand...

You have a short somewhere. Do you have any aux devices hooked up to the battery or fusebox?
 
charging system failure.

makes nosense replaced the battery tested the alternator.. then just now the charging system failure light just came back on for a sec when i hit the high beams... makes no sense any help??
 


Re: charging system failure.

Who tested the alternator? I had three in a row that were bad. Last one tested good but my C.S light still came on. Replace it and been good ever since.
 
Re: charging system failure.

Either somethin is wrong with the connections...alternator, or maybe a faulty dummy light?
 
Re: charging system failure.

ya makes no sense only happened four times three before new battery battery was tested and came back bad so got new battery thought tht was the problem....if it was something major think the light would stay on not to sure nvr had this problem
 


Re: charging system failure.

yeah everytime my alts were bad the light stayed on...Do you notice it happens when you hit a hard bump? Maybe the connection to the alt is loose.
 
Re: charging system failure.

ya i dont think so...its only when use turn signal, horn or high beams. doubt tht would drain the alt for tht to come on
 


You may wanna have your system load tested somewhere. It cost me 50 bucks at the dealership. Sounds like something is drawing too much.
 
ya maybe ill have to check into tht...i mean is it really a big deal?? just askin u guys cuz car only got 49,xxx miles and dunno why and wht made it come on those few times.
 
ya they tested it with a load on it with the lights on heat and alll tht and just dunno why tht would come up. kinda clueless guess get it checked again u would think the thing would throw a code
 
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