GerryAZ
Gold Member
Posts: 2748
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Brake module or battery?

Thu Dec 17, 2020 5:43 pm

Since your car is beyond the 3-year, 36,000-mile bumper-to-bumper warranty, the dealer will charge diagnostic fees and then charge an excessive price for a mediocre 12V battery so I also recommend that you take it to an independent shop you trust and have a new battery installed. An AGM deep cycle battery would be the best choice, but they do cost a bit more (still less than Nissan dealer cost for a cheap battery). Then drive the car (or leave it parked in ready mode) for at least 30 minutes to make sure the new battery is reasonably well charged. The new battery should be fully charged the next time you charge the car overnight.

I am truly sorry that you lost your "in-house" mechanic and wish you well.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL Plus purchased 8/10/2019

eeeefarm
Posts: 8
Joined: Thu Dec 17, 2020 9:12 am
Delivery Date: 10 May 2020
Leaf Number: 309558

Re: Brake module or battery?

Thu Dec 17, 2020 6:10 pm

Thanks, Gerry. I appreciate your advice and kind words.
2016 Leaf SL since May 2020 .-.-.

cwerdna
Posts: 11522
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Brake module or battery?

Thu Dec 17, 2020 7:03 pm

GerryAZ wrote:
Thu Dec 17, 2020 5:43 pm
Since your car is beyond the 3-year, 36,000-mile bumper-to-bumper warranty, the dealer will charge diagnostic fees and then charge an excessive price for a mediocre 12V battery so I also recommend that you take it to an independent shop you trust and have a new battery installed.
I agree. When the replacement "84 month" Nissan 12 volt replacement I received bit the dust outside the portion of the warranty where it was fully covered, it was more $ to pay Nissan to install another one than to buy one from Costco and DIY.

I mentioned that at viewtopic.php?p=572068#p572068.

The first one on my used '13 Leaf (built 5/2013) but the dust in around Oct 2015 and was totally covered by the 3 year/36K warranty. The replacement I got is what failed later than I liked in Nov 2019.

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

LeftieBiker
Moderator
Posts: 16107
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Brake module or battery?

Thu Dec 17, 2020 7:22 pm

LeftieBiker, I don't understand what this will do to make a difference--could you explain?.
Anecdotal evidence suggests that the car charges the 12 volt battery more aggressively when the climate control is on. Probably just running the HVAC blower triggers it. It has also been suggested that running the wipers alone will do the same, but when I tested that theory the results were inconclusive.*

* It has also been suggested that the dim high beams on the Gen I Leaf are the result of too-low system voltage: 12.x volts instead of the more typical 13.x volts of a running ICE vehicle. So I tried turning the wipers on with the high beams already on, on a very dark road. There was no noticeable improvement in headlight brightness...
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

cwerdna
Posts: 11522
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Brake module or battery?

Thu Dec 17, 2020 7:30 pm

LeftieBiker wrote:
Thu Dec 17, 2020 7:22 pm
It has also been suggested that running the wipers alone will do the same, but when I tested that theory the results were inconclusive.*
I can confirm when looking at the 12 volt bus voltage in LeafSpy that when the car's in READY mode, when you activate the wipers, even for just a single wipe, the 12 volt bus voltage jumps (IIRC to past 14 volts) and stays elevated for awhile before it falls back to what it was before. It seems to happen every time a wipe occurs. This is why we believe 12 volt batteries on Leafs last longer in rainy areas than where it doesn't rain much.

Even better would be rainy areas and '11 to '17 Leaf SL parked outside in the sun. Those cars have the tiny solar panel on the rear spoiler.

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

lorenfb
Posts: 2485
Joined: Tue Dec 17, 2013 10:53 pm
Delivery Date: 22 Nov 2013
Leaf Number: 416635
Location: SoCal

Re: Brake module or battery?

Thu Dec 17, 2020 7:41 pm

LeftieBiker wrote:
Thu Dec 17, 2020 7:22 pm
LeftieBiker, I don't understand what this will do to make a difference--could you explain?.
Anecdotal evidence suggests that the car charges the 12 volt battery more aggressively when the climate control is on. Probably just running the HVAC blower triggers it. It has also been suggested that running the wipers alone will do the same, but when I tested that theory the results were inconclusive.*

* It has also been suggested that the dim high beams on the Gen I Leaf are the result of too-low system voltage: 12.x volts instead of the more typical 13.x volts of a running ICE vehicle. So I tried turning the wipers on with the high beams already on, on a very dark road. There was no noticeable improvement in headlight brightness...
You're not going to notice a headlight brightness change with just a volt to 1.5 volts change in battery voltage.
Order a cigar lighter voltmeter to do your testing and evaluation;
https://www.amazon.com/LIHAN-Charger-Di ... 220&sr=8-5
#1 Leaf SL MY 9/13: 76K miles, 47 Ahrs, 5.0 miles/kWh (average), Hx=70, SOH=73, L2 - 100% > 1000, temp < 95F, (DOD) > 20 Ahrs
#2 Leaf SL MY 12/18: 10.3K miles, SOH 109Ahrs/115Ahrs, 5.2 miles/kWh (average), DOD > 20%, temp < 105F

LeftieBiker
Moderator
Posts: 16107
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Brake module or battery?

Thu Dec 17, 2020 7:46 pm

You're not going to notice a headlight brightness change with just a volt to 1.5 volts change in battery voltage.
I should have if the dim high beams were the result of the system voltage being 1-2 volts lower than the headlight bulb manufacturer assumed, and if activating the wipers raised the system voltage by 1.5 volts. I didn't know which theory I was collecting evidence against, though, which I why I wrote "inconclusive."
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

GerryAZ
Gold Member
Posts: 2748
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Brake module or battery?

Thu Dec 17, 2020 8:04 pm

I never noticed it on the 2011 because I did not monitor the 12V system while driving, but the 2015 and 2019 do run the system at 14V with wipers on (and for a little while after turning them off). I have not noticed the same voltage rise with just HVAC use (which is why I asked for your explanation).
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL Plus purchased 8/10/2019

alozzy
Posts: 1723
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017
Location: Vancouver, BC
Contact: Website

Re: Brake module or battery?

Thu Dec 17, 2020 8:52 pm

eeeefarm wrote:
Thu Dec 17, 2020 5:28 pm
alozzy wrote:
Thu Dec 17, 2020 5:14 pm
It's your call but personally, I would spend $100 to buy a new 12V battery, charge it, install it in the LEAF, then see if that resolves the issue. The Nissan dealer will charge you at least $200 just to look at it, then recommend hours of diagnostic work to figure out what's wrong (and likely recommend a replacement 12V battery).
Replacing the battery myself is out of my comfort zone, but I suppose I could take the car to Canadian Tire and let them do it. Unfortunately I don't have anyone that can do this for me.
If you are in the Vancouver area, I might be able to help you with installing the 12V battery for you. I just did the same on my own LEAF, didn't take very long.
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV :D

eeeefarm
Posts: 8
Joined: Thu Dec 17, 2020 9:12 am
Delivery Date: 10 May 2020
Leaf Number: 309558

Re: Brake module or battery?

Fri Dec 18, 2020 3:56 am

alozzy wrote:
Thu Dec 17, 2020 8:52 pm

If you are in the Vancouver area, I might be able to help you with installing the 12V battery for you. I just did the same on my own LEAF, didn't take very long.
Thanks so much for the kind offer, but unfortunately I am in Ontario. I know basically how to do the job, but as I said, out of my comfort zone.
2016 Leaf SL since May 2020 .-.-.

Return to “Problems / Troubleshooting”