Parasitic battery drain, HFL or door lock actuator?
06-06-2017, 02:32 PM
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Parasitic battery drain, HFL or door lock actuator?
My battery is less than a year old and it has twice died and needed to be jumped. The latest time was with my car stereo playing for about 10 minutes while I loaded my car.
The dealership though that it may be a handsfree issue draining my battery, but then they read something and told me that it was the driver's door lock actuator.
The problem is ... I haven't had any issues with my door locks not working.. just the battery draining.. and I don't want to replace the actuator if that isn't the real issue.
It's a 2010 TSX with 54,000 miles. I have had the car 2 years now (put about 8K miles per year) and am also on my 2nd set of brakes..
Any ideas?
The dealership though that it may be a handsfree issue draining my battery, but then they read something and told me that it was the driver's door lock actuator.
The problem is ... I haven't had any issues with my door locks not working.. just the battery draining.. and I don't want to replace the actuator if that isn't the real issue.
It's a 2010 TSX with 54,000 miles. I have had the car 2 years now (put about 8K miles per year) and am also on my 2nd set of brakes..
Any ideas?
06-06-2017, 02:33 PM
#2
Senior Moderator
We can't do a parasitic draw test over the internet so you'll have to do it for us to see what circuit it's on and we can give you some direction afterwards
06-07-2017, 05:23 AM
#3
Pro
Is there any aftermarket electrical stuff installed? If yes, start by checking these and any collateral damage caused by the installation. You cal also try disconnecting the HFL module to test. On what basis did the dealer say it's the door lock actuator?
02-26-2018, 08:29 AM
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Hello everyone. Looking forward to adding some insight and value to this forum.
I recently purchased a used 2010 TSX with tech package with 88K miles for my daughter. The other day the car needed a job start due to an almost dead battery. I have been reading a lot on it and continue to read about the HFL module. Does the faulty HFL pertain to the 2010 models as well? I would like to disconnect the HFL to determine if that is the cause, but of course, I don't know where it is located. I did look at the front right panel on the passenger's side, but only thing there was the fuses. Any help would be greatly appreciated. Thanks.
I recently purchased a used 2010 TSX with tech package with 88K miles for my daughter. The other day the car needed a job start due to an almost dead battery. I have been reading a lot on it and continue to read about the HFL module. Does the faulty HFL pertain to the 2010 models as well? I would like to disconnect the HFL to determine if that is the cause, but of course, I don't know where it is located. I did look at the front right panel on the passenger's side, but only thing there was the fuses. Any help would be greatly appreciated. Thanks.
01-14-2022, 05:08 PM
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07 RDX battery drain
Repair shop confirmed parasitic battery drain from HFL. Pull fuse and the drain stops. So does the Nav and radio. Recommended replacing the HFL at a cost of about $3k.
I have the Acura part # 39546STKA02 ($2,900). Looks like I can get one online for about $500.
Any diagrams/videos on where the HFL is located on the 2007 RDX and how to access/remove it?
Thx! Guy
I have the Acura part # 39546STKA02 ($2,900). Looks like I can get one online for about $500.
Any diagrams/videos on where the HFL is located on the 2007 RDX and how to access/remove it?
Thx! Guy