This morning my car started perfect and always has since the day I purchased it a few months back. When I got back from work I go to start it insert key turn key and lose all power. I tried jumper cables but the car would only click. Decided to take the battery and get it tested. Battery reader showed it needed charge. Battery date is May 2014

Received my battery back in 1hr after a charge. Installed and car turned on just fine.

What can be going wrong? I know I didn't leave anything on like a light or something and it never has shown any symptoms of anything.

I've read a few threads that the starter can be the cause. I can change it myself but that thing is real expensive.

Any ideas or help would be great appreciated.

 

A failing HFL unit has been fairly common on the 3G TL. One of the symptoms is a parasitic draw on the battery. You can search here on AZ and you will find the fix tons of info. Fixes range from component fixes on the PCB, simply disconnecting the HFL or full replacement.

Again this isn't absolutely your issue but something to definitely check out.

 

AAHH yes i totally forgot about that. Mine isnt working so I'm going to disconnect it.

Thanks!

 

This has happened to my tl as well definitely something to look into now

 

just unplug your hfl if the problem goes away, you know what it is

 

It is possible to have a bad battery too..

I bought a new battery from Oriellys just this spring.. it lasted 2 months.. So I took the battery back to Oriellys, and they tested it, and they said.. hmmmm.. Its bad. So, they gave me a new one.. no charge. And I have not had any problems all summer.

 

Yes i need to unplug it. I hope thats what it is. Now im afraid my car will fail at the worst moment.

They tested by battery it only sad it needed charge. So i think the battery is ok. Just something is draining it. COuld be the hfl like others have said

 

You need to find the time to this done or as you have mentioned, it will makes it's own time and force you to do it...........

 

HFL won't cause the car not to start when jumped ... It will drain the battery but it should start when jumped if thats it. More likely bad ground or starter.

 

Agreed

 

its probably the HFL. mine drained my battery so bad i could not jump it. had to get 3 battery replacements. after unplugging the HFL, problems disappeared.