Lothsahn
Posts: 657
Joined: Thu Apr 05, 2018 4:35 pm
Delivery Date: 04 Jan 2018
Leaf Number: 007797

Re: 12V accessory outlet not working.

Wed Nov 13, 2019 8:52 am

My 12V fuse was blown for the accessory port when I bought my car. I replaced it and have had no problems since.

If you repeatedly blow fuses, that's not good. 10A should provide 120W. Given phone adapters are typically <15W (although some are up to 50W), they should *never* blow the fuse. If you're blowing the fuse repeatedly, you should definitely inspect the wiring for that circuit as there's a problem--possibly one that could cause a fire.
2011 Silver SV, purchased 2018, lives in Missouri (previously in CA)
LeafSpy Pro + BAFX Products OBDII dongle
Battery swap 2019/04/24 (87% SOH, 12 bar)

User avatar
mwalsh
Posts: 9753
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: 12V accessory outlet not working.

Wed Nov 13, 2019 9:25 am

jdcbomb wrote:
Wed Nov 13, 2019 2:32 am
Somehow a fairly highly rated tire pump air compressor my relative purchased from Amazon caused both her non-EV vehicle and my 18 LEAF to both blow their 12V accessory outlet fuses! Needless to say that compressor will be returned and a terrible review left: https://www.amazon.com/Lifeline-AAA-300 ... 401&sr=8-3

The crazy thing is I've been using an old Continental OEM pump that came with an older gen LEAF for 5+ years in different vehicles pumping air without ever blowing a fuse!
I use the GM branded inflater that came with our Volt all the time. No issues. Made in China by a company called FixandGo, if the label on the bottom is to be believed.
2011 Blue Ocean SL with 87,000 miles
2015 pack on 12/30/15
Tinted windows
Bosch AGM 12v
Ecopia 422+ tires
L1 EVSE upgrade
FIAMM horns
Superbright LED lighting
2013 sun visors
LED shifter
Heated seats
GT-R map lamp lenses
Altima illuminated door switches

jjeff
Posts: 2213
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: 12V accessory outlet not working.

Wed Nov 13, 2019 3:39 pm

For a while my mother needed an oxygen making machine, unfortunately it drew 12a. Unfortunately she tried it in her Leaf and my brothers(both '13's) but the good news is, while neither Leaf powered the machine, it didn't blow the fuse in either.....not sure why(maybe the oxygen machine shut off on a low voltage situation?) but when they told me it drew 12a I said NO, don't even plug it in. They did say the oxygen machine errored out so thats probably why it didn't actually blow the Leaf fuse.
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

coulomb
Posts: 124
Joined: Thu Oct 09, 2014 5:08 pm
Delivery Date: 07 Mar 2015
Leaf Number: 200445
Location: Brisbane, Australia

Re: 12V accessory outlet not working.

Fri Jun 19, 2020 8:28 pm

jjeff wrote:
Wed Nov 13, 2019 3:39 pm
... it drew 12a. ... while neither Leaf powered the machine, it didn't blow the fuse in either.....not sure why
I wondered about that, until I dug out the schematic for it:

Image

Adapted from the PDF on this page, from this handy page with many user and repair manuals, (for the 2012; they have other model years as well).

Note the mysterious "resistor" that seems to be integral; I'd say it's an NTC resistor [ edit: as pointed out below, it would be PTC ] that starts severely reducing power output above about 10A. I doubt I'll be able to run my tire pump from it (there is a warning tag in it that states that it draws 14A).

How nanny is that? :x
Last edited by coulomb on Sat Jun 20, 2020 7:48 pm, edited 1 time in total.
2012 Leaf with new battery May 2019. New to me June 2019.

LeftieBiker
Moderator
Posts: 16165
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: 12V accessory outlet not working.

Fri Jun 19, 2020 10:11 pm

If the wiring is cheap, it's just nanny enough.
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: 2768
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: 12V accessory outlet not working.

Fri Jun 19, 2020 10:32 pm

You are probably right about the resistor being NTC to protect against overheating of the socket (due to loose contact with plug) or overloading. Notice the fuse in the negative (ground) side of the socket. This is common on modern cars so you can ruin the socket without blowing the supply fuse.
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

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

Re: 12V accessory outlet not working.

Sat Jun 20, 2020 9:02 am

GerryAZ wrote:
Fri Jun 19, 2020 10:32 pm
You are probably right about the resistor being NTC to protect against overheating of the socket (due to loose contact with plug) or overloading. Notice the fuse in the negative (ground) side of the socket. This is common on modern cars so you can ruin the socket without blowing the supply fuse.
Most likely a thermistor to reduce the inrush of current, e.g. from a capacitive load, incandescent bulb. To reduce increasing current,
the device would need to be PTC (positive temp coefficient) device.
#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

GerryAZ
Gold Member
Posts: 2768
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: 12V accessory outlet not working.

Sat Jun 20, 2020 10:49 am

You are right, probably a thermistor or PTC resistor, I was replying to a previous post that mentioned NTC resistor without thinking about it. At any rate, the fuse and resistor built-in to the negative side of the socket with the fuse not being a normal user-replaceable item means the socket may fail if it is overloaded.
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

Learjet
Posts: 115
Joined: Tue Mar 24, 2020 8:04 pm
Delivery Date: 11 Mar 2020
Leaf Number: 309454
Location: Louisiana, USA

Re: 12V accessory outlet not working.

Sat Jun 20, 2020 11:19 am

or a safety device in case someone puts a real cigarette light in there :roll:
2019 Nissan Leaf SL Plus

coulomb
Posts: 124
Joined: Thu Oct 09, 2014 5:08 pm
Delivery Date: 07 Mar 2015
Leaf Number: 200445
Location: Brisbane, Australia

Re: 12V accessory outlet not working.

Sat Jun 20, 2020 7:51 pm

lorenfb wrote:
Sat Jun 20, 2020 9:02 am
To reduce increasing current,
the device would need to be PTC (positive temp coefficient) device.
Duh, of course, my bad.

I was pleasantly surprised however that it ran my supposedly 14A tire pump without problems.
2012 Leaf with new battery May 2019. New to me June 2019.

Return to “Problems / Troubleshooting”