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cleaning battery terminals. #4782913
06/10/18 08:52 AM
06/10/18 08:52 AM
Joined: Jan 2011
Posts: 1,072
Columbus Nebraska
old1 Offline OP
old1  Offline OP
Joined: Jan 2011
Posts: 1,072
Columbus Nebraska
I am an old, and old school mechanic. I know how to clean battery cables etc, but am still nor sure if on my 2017 Nissan Frontier with 4.06 cylinder, if I can just take off the cables and clean them up, and reinstall, or will some computer stuff be messed up if I disconnect the battery??? The last time I had to clean or even replace a battery it was on old school cars.
I am not worried about radio controls or phone controls, because I don't use any of that anyway. Just concerned about the running driving/ automatic transmission and things.

Last edited by old1; 06/10/18 08:56 AM.

2017 Nissan Frontier 4.0 5w30
1965 Mustang 200 c/4 10w30 QS defy
1964 Ford Ranchero 302 c/4 15/40 Delo
1929 ford model A No filters, and 15/40 oil
Re: cleaning battery terminals. [Re: old1] #4782923
06/10/18 08:59 AM
06/10/18 08:59 AM
Joined: Mar 2017
Posts: 6,936
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 6,936
...
Disconnecting the cables will reset the computer so all your personal settings will be gone. It will reset the transmission learning if you have a automatic.


Cannot see signatures any longer so it doesn’t matter.
Re: cleaning battery terminals. [Re: old1] #4782924
06/10/18 08:59 AM
06/10/18 08:59 AM
Joined: Dec 2016
Posts: 7,428
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,428
Waco, TX
Originally Posted By: old1
I am an old, and old school mechanic. I know how to clean battery cables etc, but am still nor sure if on my 2017 Nissan Frontier with 4.06 cylinder, if I can just take off the cables and clean them up, and reinstall, or will some computer stuff be messed up if I disconnect the battery??? The last time I had to clean or even replace a battery it was on old school cars.
I am not worried about radio controls or phone controls, because I don't use any of that anyway. Just concerned about the running driving/ automatic transmission and things.


You can plug a 12v power source in the lighter socket to keep the "keep alive memory" in the computer intact.

Otherwise.... no big deal.
The computer will relearn again, and it does it pretty quickly at that.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: cleaning battery terminals. [Re: old1] #4782925
06/10/18 09:00 AM
06/10/18 09:00 AM
Joined: Aug 2010
Posts: 6,068
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 6,068
Champlain/Hudson Valley
Do yourself a small favor. Get a 9 volt battery or small 12 volt battery and attach leads with clips.
Clip on the temporary small battery before removing the main battery. This way you'll be assured uninterrupted power to the computers.
I believe they all take just 5 volts.

This same idea is done through a power port or cigarette lighter but you have to leave the ignition switch in the ON position so the socket (power plug or cigarette lighter) is connected.

WOW....3 answers came in a 1 minute window.

Re: cleaning battery terminals. [Re: old1] #4782927
06/10/18 09:03 AM
06/10/18 09:03 AM
Joined: Jun 2002
Posts: 6,478
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,478
MI
Deleted my answer. An internet search shows that "some" vehicles "might" be sensitive to battery disconnection without a memory saver and "might" require some computer reflashing with a scan tool. Can anyone verify this? There seems to be all kinds of recommendations on Subaru forums.

Re: cleaning battery terminals. [Re: old1] #4782938
06/10/18 09:26 AM
06/10/18 09:26 AM
Joined: Jun 2003
Posts: 5,973
Illinois
SHOZ Offline
SHOZ  Offline
Joined: Jun 2003
Posts: 5,973
Illinois
Disconnecting the battery will reset the ECU to factory new settings. I've never heard of a need to reflash. In fact I'm of the opinion it's a good idea to clear the learned behavior at least once a year.

If they made the cars so you need to relash every time the battery would go dead that would be pretty pathetic.


2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual
Re: cleaning battery terminals. [Re: SHOZ] #4782952
06/10/18 09:41 AM
06/10/18 09:41 AM
Joined: Jun 2002
Posts: 6,478
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,478
MI
Maybe no need to reflash, but here is a list of "resets" that may be required on a Subaru after a battery disconnect: http://www.subaruoutback.org/forums/atta...reset-items.pdf

Re: cleaning battery terminals. [Re: old1] #4782999
06/10/18 10:57 AM
06/10/18 10:57 AM
Joined: Mar 2014
Posts: 3,575
NJ
Leo99 Online content
Leo99  Online Content
Joined: Mar 2014
Posts: 3,575
NJ
Your 2017 needs its battery terminals cleaned already?

I changed out the battery on my 2015 and nothing bad happened.


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles (RIP)
2004 Corolla 125,000 miles
2004 Rav4 370,000 miles
2015 Camry 70,000 miles
Re: cleaning battery terminals. [Re: Leo99] #4783004
06/10/18 11:00 AM
06/10/18 11:00 AM
Joined: Jan 2011
Posts: 1,072
Columbus Nebraska
old1 Offline OP
old1  Offline OP
Joined: Jan 2011
Posts: 1,072
Columbus Nebraska
I also think it is strange that it needs them cleaned already. Maybe there is seepage around the posts. I think I will clean, and put some good sealer around the posts.


2017 Nissan Frontier 4.0 5w30
1965 Mustang 200 c/4 10w30 QS defy
1964 Ford Ranchero 302 c/4 15/40 Delo
1929 ford model A No filters, and 15/40 oil
Re: cleaning battery terminals. [Re: doitmyself] #4783011
06/10/18 11:03 AM
06/10/18 11:03 AM
Joined: Jun 2003
Posts: 5,973
Illinois
SHOZ Offline
SHOZ  Offline
Joined: Jun 2003
Posts: 5,973
Illinois
Originally Posted By: doitmyself
Maybe no need to reflash, but here is a list of "resets" that may be required on a Subaru after a battery disconnect: http://www.subaruoutback.org/forums/atta...reset-items.pdf
My Gen Coupe has a lot of items to reset. But I only do the radio and AC compressor mode for the defrost. These should be addressed as to how to reset in the owner manual.


2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual
Re: cleaning battery terminals. [Re: old1] #4783079
06/10/18 12:44 PM
06/10/18 12:44 PM
Joined: Nov 2011
Posts: 5,020
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 5,020
MTL, CANADA
Dont think ive ever cleaned terminals besides spraying a bit of cleaning foam on them and light water rinse...wouldnt bother on a 2017..


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: cleaning battery terminals. [Re: old1] #4783087
06/10/18 12:49 PM
06/10/18 12:49 PM
Joined: Jan 2008
Posts: 11,088
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 11,088
OH
Originally Posted By: old1
I also think it is strange that it needs them cleaned already. Maybe there is seepage around the posts. I think I will clean, and put some good sealer around the posts.


I took both cars in my signature to Walmart TLE for their NOCO battery treatment service. Only $3.99 which includes a nice cleaning, felt washers and red grease. Has lasted years and stopped the corrosion build-up from happening on both batteries. Previously every few months it seemed they would gunk up.

Re: cleaning battery terminals. [Re: old1] #4783098
06/10/18 01:06 PM
06/10/18 01:06 PM
Joined: May 2014
Posts: 3,873
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline
Joined: May 2014
Posts: 3,873
Columbus,Nebraska
Replace with an AGM battery and you won't have a corrosion problem.

Re: cleaning battery terminals. [Re: old1] #4783124
06/10/18 02:00 PM
06/10/18 02:00 PM
Joined: Jun 2003
Posts: 33,771
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,771
ME
I have one of these, works mint. The OBD-II side goes on the receiving end.

I rigged up a cigar lighter to an old 12V motorcycle battery but you could skip this step.

Re: cleaning battery terminals. [Re: Yah-Tah-Hey] #4783189
06/10/18 03:35 PM
06/10/18 03:35 PM
Joined: Mar 2015
Posts: 5,588
Virginia
bbhero Offline
bbhero  Offline
Joined: Mar 2015
Posts: 5,588
Virginia
Hey Denso not every wants or can afford the AGM smile


Nissan Altima 3.5 Coupe
Mobil Super 5w30 Wix 57356
"Treat your family like your friends and treat your friends like your family."
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