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Acura TL Electrical System Problems

61 messages,  Last post on Feb 26, 2013 at 12:48 PM

You are in the Acura TL Forum.

What is this discussion about? Acura TL, Electrical, Sedan

Messages Page 5 of 7

#39 of 61 Re: 2007 Acura TL battery dead if parked for 5-6 days [angrychimp] by angrychimp

Oct 17, 2010 (8:41 pm)

Replying to: angrychimp (Oct 08, 2010 8:16 am)
As a follow up to my earlier post, disconnecting the power to the HFL has solved my battery drain problems with the TL. Best of all, I don't have to give another $800 to the dealer!
 
If have this problem, but absolutely can't live without the HFL, it can be found for around $399 online and should be an easy do it yourself. The part number is
77120-SEP-A01ZA. Below is a link where it can be purchased. Best of luck!
 
http://www.acuraoemparts.com/delray/jsp/prddisplay.jsp?inputstate=5&catcgry1=TL&- catcgry2=2004&catcgry3=4DR+BASE+NAVIGATION&catcgry4=KA5AT&catcgry5=INSTRUMENT%2B- PANEL&ListAll=All&vinsrch=no

#40 of 61 2007 Acura LT by sprn7582

Oct 28, 2010 (7:58 am)

LT? no mine came that way I guess they reveresed when applying the emblem. Well anyways, I am having an issue with my 2007 Acura TL-NAVI. it suddenly shuts off the electrical when driving. My wife drives the car and at first did not beleive it! but then saw it myself we were doing 70 MPH and the instrument panel power cut off suddenly and she said the power steering is getting tighter. Pulled off the road as the engien was running turned off and started again without a hitch. She said she has experienced this at least 4 times over the past 3-4 weeks, Took it to the dealer and no luck as they could not duplicate or diagnose. Called Acura service and they said nothing reported similar to what we are experiencing. Now I am driving the car and see if it happens to me. Just wanted to know if there is anyone else out there who has experienced this issue?

#41 of 61 Re: 2007 Acura LT [sprn7582] by moira1

Oct 28, 2010 (8:25 am)

Replying to: sprn7582 (Oct 28, 2010 7:58 am)
I had the exact same problem with mine - it would should off and sometimes start back up on it's own. My mechanic finally diagnosed it as the ignition switch, replaced it, and I haven't had any problem with it since. Good luck!

#42 of 61 Re: 2007 Acura TL battery dead if parked for 5-6 days [angrychimp] by snipeinc86

Feb 17, 2011 (5:36 pm)

Replying to: angrychimp (Oct 17, 2010 8:41 pm)
Hi I'm having the same problem on my Tl '05. I'm wondering if I need exactly the part number with same year car??? Thank you ****** I'm talking about HFL part (module)

#43 of 61 Re: 2007 Acura TL battery dead if parked for 5-6 days [angrychimp] by omarmd

Mar 13, 2011 (8:18 am)

Replying to: angrychimp (Oct 08, 2010 8:16 am)
Also Acura TL 2005 and same problem. Started by the HFL going into booting and nonworking mode. Then the first "Original Battery" died and after a few jump starts we went to sears and replaced it. Surprise the HFL started working again but we didn't use it as the quality if the conversation on it has always been poor. 6 months later the Sears battery died! went back to sears and the battery was BAD so it was changed under their warranty. Then a couple of months later that battery also died! went to the Dealership this time and oops the Cables to the battery are bad $200 replacement. A week later the Battery is dead again and back to the dealership and now the battery is BAD and can't handle the new cables!!!! another $100 for a new battery (number 4 in total). We asked about the HFL they claim it's not the source of the problem (I am convinced it is). We asked them to keep it for a couple of days and then test it again before they give it back to us. I will buy one of those battery meters that you can use in the ashtray plug to monitor the battery while it's parked.
ACURA should own up to this error and stop costing people hundreds of dollars and just replace there HFL (We already paid $400 in total which is what the HFL replacements costs)! In addition to the time wasted jump starting the Car!!!!
If the battery dies again I will just follow the manual and remove the HFL! this is disgusting

#44 of 61 Battery keeps draining--2005 Acura TL by whoody

Apr 11, 2011 (10:08 pm)

I am now on my 4th battery in one year. 3 months ago I took it in and they spent several days examining the electrical system which they thought was draining the battery. $300 later they thought they solved the problem. Today it would not start again---put in 4th new battery. I drive car at least 6 out of 7 days----they think I don't drive enough miles to keep it charged and want to put on a battery tickler if it happens again. The problem usually surfaces after I have not driven it for 24 hrs. Also, my bluetooth stopped working about a year ago. They think maybe the bluetooth is causing the problem and say cannot disconnect it as it is part of a bigger system???

#45 of 61 Re: Battery keeps draining--2005 Acura TL [whoody] by tim635csi

Apr 12, 2011 (6:58 pm)

Replying to: whoody (Apr 11, 2011 10:08 pm)
I just picked up a 06 tl for my wife and it has the same problem with the battery dying. I put in a new battery and it died within a few days of not being driven. I am a auto tech by trade and after noting that the conections ,grounds and charging system are all working properly I googled the symptems and found many forums discussing the hfl problem. checked the overhead with car off and sure enough it was warm. my hfl is still working properly just apparently not shutting off. I think rather then spend $400 on a new hfl unit I will try something different. I am going to source the hot wire in the plug going to the hfl and divert it through a on off toggle switch. I will get back to you guys as to if this works without disturbing any other functions , if so I will just tell my wife to always throw the switch when she is going to be out of the car for a extended period.

#46 of 61 Re: Battery keeps draining--2005 Acura TL [tim635csi] by mythatcher

May 09, 2011 (11:09 pm)

Replying to: tim635csi (Apr 12, 2011 6:58 pm)
Hey tim635csi,
 
How did it go? sounds like it should be a good option.

#47 of 61 Re: 2007 Acura TL battery dead if parked for 5-6 days [kyml] by gmejia3064

May 26, 2011 (9:23 am)

Replying to: kyml (Aug 06, 2010 6:12 pm)
Hey, I was wondering how Acura helped you at the 800-382-2238 number? I am having the same battery draining problem and I've had my car for less than 4 years!

#48 of 61 Re: 2007 Acura TL battery dead if parked for 5-6 days [angrychimp] by omarmd

Jul 18, 2011 (7:57 pm)

Replying to: angrychimp (Oct 08, 2010 8:16 am)
Thank you for your post and your link. I disengaged the HFL and the car had no more problems starting at all. Even if unused for 2weeks! The dealership should have done this for us or at least not charged us $300 between battery and cable changes. Thanks again.

Messages Page 5 of 7

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