2007 TL battery keeps draining - Acura Forum : Acura Forums
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post #1 of 4 (permalink) Old 12-28-19, 03:03 PM Thread Starter
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2007 TL battery keeps draining

Recently, if I don’t use my car for a couple days my battery drains and I have to jump it. I just got this battery past February and had it checked and it is ok. I always turn everything off, radio, AC/heat, seat heater, everything, when I turn off the car. I don’t leave the keys in it. What could be draining my battery?

Last edited by Pamhargis; 12-28-19 at 10:01 PM. Reason: Add comment
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post #2 of 4 Old 12-29-19, 01:00 PM Thread Starter
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It is the HFL. Found it in another thread. Thank you.
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post #3 of 4 Old 12-31-19, 07:23 PM
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You have a stuck relay. Most likely the relay that controls the ac compressor clutch. This will drain power even when the car is off, as it is stuck in the on position.

If this is not the part, other high drain circuits, say the rear window defroster might be the culprit.

Last edited by Astrobuf; 01-07-20 at 07:38 PM.
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post #4 of 4 Old 01-01-20, 03:48 AM
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disconnect HFL

I had the same problem. Disconnecting the HFL is an easy step to take (various instructional videos on YouTube) and should be done before moving on to more expensive or elaborate options.
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