jdoe000007
Posts: 10
Joined: Sun Feb 11, 2018 12:16 pm
Delivery Date: 11 Feb 2018
Location: Memphis, TN

TCU upgrade intresting experience

Thu Mar 08, 2018 1:34 pm

Just got my a 2015 SL and wanted to take in to the local dealer to get the TCU upgraded from 2G to 3G. The dealer rep told me to about the modem recall and told me to bring it. Got to the dealer and in about 20 mins was told that it was done. I was really surprised that it was done so quick. The rep told me that it was just a programming that was needed. I asked the rep, so does that mean that I have the 3G modem and the rep told me again that all I needed was the programming. I get into the car and try to connect and no go. I call Nissan EV customer support they checked things and tell me the dealer is wrong and they have not upgraded it to 3G. They just disabled the already disabled 2G modem which was part of a recall. I go back in and the Nissan agent explained it to the dealer. Dealer acknowledged the mistake and is ordering the 3G TCU. Took about an hour and half to get this resolved. Now have to wait for the dealer to call me back, sigh, smh.

John Doe
John Doe
2015 SL
Memphis TN
Car made and drives in TN.

User avatar
jlv
Posts: 870
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: TCU upgrade intresting experience

Fri Mar 09, 2018 1:37 pm

Do you know about all the 3G TCU upgrade problems (it locks up and causes the 12V battery to drain)?
LEAF '13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18) 34K mi, AHr 58, SOH 87%
Tesla S 75D (3/17) 29K mi
Tesla X 100D (ordered, 12/18 delivery) (replaced 3 reservation)

User avatar
Stanton
Posts: 2106
Joined: Thu Feb 03, 2011 10:56 am
Delivery Date: 01 Sep 2011
Leaf Number: 7458
Location: Plano, TX
Contact: Website Twitter

Re: TCU upgrade intresting experience

Fri Mar 09, 2018 3:51 pm

jlv wrote:Do you know about all the 3G TCU upgrade problems (it locks up and causes the 12V battery to drain)?


Do YOU know about all the 3G TCU "fixes"? ;)
2011 Blue Ocean SV w/floor mats & window tint
12v LiFePO4 battery & FIAMM 74100 horns
Wet Okole seat covers (front)
Tor's low-power heater mod
2013 sun visor
3G modem upgrade
L2 EVSE Upgrade
Battery Pack replaced (Rev E) @51 months and 41k miles

LeftieBiker
Posts: 9584
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: TCU upgrade intresting experience

Fri Mar 09, 2018 3:55 pm

It would be useful to ask everyone who has had the TCU upgrade and has had ZERO problems with it to post that.
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.

GerryAZ
Gold Member
Posts: 1845
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: TCU upgrade intresting experience

Fri Mar 09, 2018 6:20 pm

I have had only a few problems in the 15 months since the TCU replacement. An occaisional fuse pull or 12-volt battery disconnect is a small price to pay to have all of the benefits of remote access.
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

LeftieBiker
Posts: 9584
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: TCU upgrade intresting experience

Fri Mar 09, 2018 6:32 pm

GerryAZ wrote:I have had only a few problems in the 15 months since the TCU replacement. An occaisional fuse pull or 12-volt battery disconnect is a small price to pay to have all of the benefits of remote access.


It's a small price to pay for you. For someone who can't even pull a fuse it's kind of a big deal. Even for me it's a far less than ideal "fix." I'd like to see posts from people who have had NO problems with the TCU upgrade.
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.

TPeterson
Posts: 5
Joined: Mon Aug 27, 2012 8:48 pm
Delivery Date: 24 Aug 2012
Leaf Number: 019669

Re: TCU upgrade intresting experience

Fri Sep 28, 2018 5:31 pm

Stanton wrote:
jlv wrote:Do you know about all the 3G TCU upgrade problems (it locks up and causes the 12V battery to drain)?


Do YOU know about all the 3G TCU "fixes"? ;)
Your post would've been more useful if you'd given a link to some of them. :?

I found a useful video here:here and a photo of the fuse location to pull here. Pulling the fuse, waiting ~5 minutes, and reinserting it seems to have reawakened my Leaf's TCU. This was far easier than scheduling and attending a dealer service call, which was the remedy proposed by Nissan's Customer Service folks. :geek:

User avatar
Stanton
Posts: 2106
Joined: Thu Feb 03, 2011 10:56 am
Delivery Date: 01 Sep 2011
Leaf Number: 7458
Location: Plano, TX
Contact: Website Twitter

Re: TCU upgrade intresting experience

Sat Sep 29, 2018 10:05 am

None of that is necessary anymore if you just clear your saved charging locations; it's all in the "master thread" http://www.mynissanleaf.com/viewtopic.php?f=31&t=21573
2011 Blue Ocean SV w/floor mats & window tint
12v LiFePO4 battery & FIAMM 74100 horns
Wet Okole seat covers (front)
Tor's low-power heater mod
2013 sun visor
3G modem upgrade
L2 EVSE Upgrade
Battery Pack replaced (Rev E) @51 months and 41k miles

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