Car won't start after 3 days of sitting.

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Old 11-20-2012, 10:17 PM
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Car won't start after 3 days of sitting.

This is a repeat occurrence by this point. I'm posting just out of curiosity. If my car sits without starting, the battery will be dead. Out of all the cars I've had, this is odd.

So, is there a way to trace what is draining my battery? Is this a common issue?

Input is appreciated.
Old 11-21-2012, 01:05 AM
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Originally Posted by AbyssPearlTL
This is a repeat occurrence by this point. I'm posting just out of curiosity. If my car sits without starting, the battery will be dead. Out of all the cars I've had, this is odd.

So, is there a way to trace what is draining my battery? Is this a common issue?

Input is appreciated.
Its most likely your HFL (hands free link) it drains your battery slowly so if you let it sit for 2-3days your battery will get drained. its an known issue just unplug your hfl which is located behind your dome light where you open and close your sunroof, or you can replace the part which is $700+. I left mines unplugged better then paying to replace it.
Old 11-21-2012, 05:25 AM
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^Yep, definitely the HFL module is gone.. Check thru the MID if the hands free says 'booting up'.. Its a common problem.
Old 11-21-2012, 09:12 AM
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Had a similar problem, for me though it was the radio that had gone bad. Def check the HFL, but if that's not it, it may be the radio.
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Old 11-22-2012, 07:50 PM
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Does anyone have a picture of what needs to be disconnected?
Old 11-22-2012, 11:15 PM
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Originally Posted by AbyssPearlTL
Does anyone have a picture of what needs to be disconnected?
Do a search in the audio forum or the service department. There is at least one DIY with pics that show the plug.

You can also pull the #6 fuse, but that will get old pretty quick.
Old 03-17-2019, 05:39 PM
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Car want start

Originally Posted by NC916
Its most likely your HFL (hands free link) it drains your battery slowly so if you let it sit for 2-3days your battery will get drained. its an known issue just unplug your hfl which is located behind your dome light where you open and close your sunroof, or you can replace the part which is $700+. I left mines unplugged better then paying to replace it.

I actually replaced the handsfree link and the battery still drains after sitting 3 o more days. Any other suggestions?
Old 03-17-2019, 06:30 PM
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Old 03-18-2019, 08:22 AM
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https://acurazine.com/forums/3g-tl-p...solved-973316/
Old 03-20-2019, 10:35 AM
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Also may be the A/C relay. $6 dollar part and 1 minute fix.
Old 06-06-2019, 08:05 PM
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The HFL is a very commonly documented issue with these cars.
Old 07-01-2019, 09:52 AM
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Manimal, how did you figure out it was your radio?

I already removed the radio in my 2007 TL Type S, and then tested the drain, and it was 1.2 amps. Then I disconnected the HFL, and the drain is now 0.55 amps, which still seems high.
Maybe I should remove the NAV and test again.
And then reinstall the radio, and test again.

What should the drain actually be?
Old 07-01-2019, 10:09 AM
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P.S. Looks like Turbonut got the drawn down to 14-16 mA after pulling the #7 fuse: https://acurazine.com/forums/3g-tl-p...solved-973316/.
So. I pulled my fuse, and then my meter showed 0.08 amps = 80 mA, which is much better than 550 mA, but not as good as 16 mA.
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