JohnnyB
Posts: 1
Joined: Wed Jan 23, 2019 9:05 pm
Delivery Date: 24 Jan 2019
Leaf Number: 005040

2011 Leaf Charging Plate failure

Wed Jan 23, 2019 9:12 pm

My 2011 Leaf has 62,000 miles. Nissan replaced the battery (Nissan Van Nuys, CA) in October, about 3,000 miles ago, under a coupon program. Now the Leaf won't charge; when it's plugged in, I hear the beeps and the first light flashes about twice, then goes off. Nissan Van Nuys's tech says it's the charging plate behind the rear seats -- and will cost $2,300 to replace, because it's not covered by the warranty on the replacement battery. It's not "part" of the battery, but I believe the plate should not fail at 60,000 and require a repair costing half the car's value.

Anybody else dealt with this issue?

91040
Posts: 1000
Joined: Fri Mar 11, 2011 10:36 pm
Delivery Date: 06 May 2011
Location: Los Angeles, CA

Re: 2011 Leaf Charging Plate failure

Thu Jan 24, 2019 12:28 am

First time I’ve heard of a “charging plate”. The onboard charger though is located behind the back seats on 2011 & 2012 Leafs.

Does the car fail to charge on Level 1, Level 2 & Quick Charge (if it has that)? Does it fail on different EVSEs?

A couple of things can prevent you from charging. They include broken wires and connections in the Jplug or the receiver. Another problem is a failed diode in the onboard charger.

There are a number of threads that cover these possibilities. Do a search for failed diode, car won’t charge or similar phrases. There is also one thread about this that was started by darrellev, if I remember correctly.

Though the onboard charger is not part of the traction battery warranty, it is covered by the EV powertrain warranty. Look up how many miles/years that covers to see if you qualify.
1st Capacity Bar loss 30k mi 16.25mo
2nd- 49k mi 25.5mo 51.5Ah
3rd- 73k mi 36.5mo 46.9Ah
4th- 86.5k mi 43mo 42.61Ah
5th- 101k mi 50.5mo 38.38Ah, end 36.13Ah
New Battery 9/28/15 104k mi 66.14Ah
1st- 160.5k mi 34mo 54.02Ah

cwerdna
Posts: 9256
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: 2011 Leaf Charging Plate failure

Thu Jan 24, 2019 1:10 am

^^^
Yep. OBC is behind the seat under the hump in the back for '11 and '12 Leafs: viewtopic.php?t=3010. I also have never heard it called a "charging plate".

viewtopic.php?t=24696 was an example of a diode fixed thread. If it can charge via CHAdeMO and via the stock L1 EVSE (which supposedly doesn't do a diode check) and Aerovironment EVSEs (they're round and can have a Nissan brand on the front, also supposedly don't do a diode check), then it's probably a blown diode.

viewtopic.php?t=24560

EV system/powertrain warranty is only 5 years/60K miles.

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LeftieBiker
Moderator
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Re: 2011 Leaf Charging Plate failure

Thu Jan 24, 2019 1:56 am

As a good rule of thumb, don't give money - especially large amounts of it - to a dealership that incorrectly identifies the part they claim to have to replace. Get a second opinion. Hopefully it is just the failed diode.
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cwerdna
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Joined: Fri Jun 03, 2011 4:31 pm
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Location: SF Bay Area, CA

Re: 2011 Leaf Charging Plate failure

Thu Jan 24, 2019 2:40 am

Unfortunately, we've not known of dealers fixing the failed diode or splicing one in between. They seem to want to replace a multi-kilobuck on-board charger instead.

Phil has brought this up before: viewtopic.php?f=30&t=13136&p=299259&hilit=kilobuck#p299259.

Back to the OBC warranty, https://imgur.com/a/u10QXcw is from page 7 of the '11 warranty booklet.

'19 Bolt Premier
'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)

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

LeftieBiker
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Re: 2011 Leaf Charging Plate failure

Thu Jan 24, 2019 3:44 am

Unfortunately, we've not known of dealers fixing the failed diode or splicing one in between. They seem to want to replace a multi-kilobuck on-board charger instead.


Right, but if they correctly identify the issue as a charger failure instead of some nonexistent part, then it's not hard to self-test it for the diode failure, which isn't expensive if you either do it yourself or find an independent shop to do it.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

GlennD
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Location: Anaheim

Re: 2011 Leaf Charging Plate failure

Fri Jan 25, 2019 9:02 pm

Fortunately signal diodes usually fail shorted. That means that you can break the pilot line and insert a diode. It is very low current at 1KHZ so most any diode would work. Physically a diode like the iN4000 series or the shotskey equivalent or even the 56000 series is more robust but the common 1N4070 will work just fine.
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