jdearm
Posts: 3
Joined: Fri Sep 04, 2015 5:26 pm
Delivery Date: 05 Sep 2013
Leaf Number: 406171

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Sun Oct 29, 2017 2:50 pm

Does anyone know if there is an easy safe way to disconnect just the TCU from the 12v line? I have a 2013 which seems to have developed dead 12v battery occasional issues sometime after I had the TCU upgrade installed, and I would like to disconnect the power from the TCU to confirm that fixes the issue. Apologies if this answer is posted already.

Regards, JDEARM

JRoque
Posts: 39
Joined: Sat Jul 11, 2015 4:44 pm
Delivery Date: 29 Jun 2015
Leaf Number: 406755
Location: Miami, FL

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Thu Nov 09, 2017 1:00 pm

Hi.

I guess I'll post the same thing every couple of months for those catching up. The issue is with the TCU getting stuck in a loop calling the Carwings backend system.

The solution is simple, yet Draconian: decline all data sharing inside your car, disable all charging station updates, etc. Anything that calls out of the car should be disabled. This will, of course, disable most of what's good about the TCU. You can still use it to send (one way) climate control commands to your car, something I use quite often.

It's been a couple of months since my last 12V battery issue after I did the above. No fuse pulls, battery replacing or funky stuff to do.

Don't like it? Let's sue Nissan so they finally fix it.

JR

Leafboy
Posts: 172
Joined: Sun Jul 24, 2011 4:46 pm
Delivery Date: 12 Aug 2011
Leaf Number: 5721
Location: Atlanta, GA

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Thu Nov 09, 2017 1:30 pm

I have the non-communicating TCU issue since the upgrade and when I learned of the audio fuse pull, I have had to do it twice. I haven't had any accessory battery issues yet though.
I have made numerous calls to Nissan for this issue and they keep moving it up to a higher level(I'm told). I don't know how high it needs to go to get it resolved. The Nissan people I talk to are always polite and apologetic for my problem, but can never offer acknowledgement of a known problem. I have had a few calls back from Nissan basically inquiring if my issue has been solved. Of course I tell them no and relate the temporary audio fuse pull solution. They don't seem to know about that either, but will pass that over to the tech folks.
I have filled out a few surveys about my calls to Nissan and continue to tell them the problem is not solved and about the temp fix. I will continue to do this and maybe they will eventually solve the problem. Seems to me that a software update to reset the TCU once a month could resolve some of these issues.
Lew George
2011 Leaf SL-e
Cayenne Red
Longest continously owned Leaf in Georgia.
LED Upgrades: Parking lights, tag lights, back-up lights, side lights, interior lights,DRLs,LED Hi-beam.
Additional upgrades: Horn upgrade, pedestrian warning bell.

VitaminJ
Posts: 396
Joined: Tue Jan 03, 2017 11:46 am
Delivery Date: 07 Jan 2017
Leaf Number: 415775
Location: Morrison, CO
Contact: YouTube

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Thu Nov 09, 2017 3:42 pm

Leafboy wrote:I have the non-communicating TCU issue since the upgrade and when I learned of the audio fuse pull, I have had to do it twice. I haven't had any accessory battery issues yet though.
I have made numerous calls to Nissan for this issue and they keep moving it up to a higher level(I'm told). I don't know how high it needs to go to get it resolved. The Nissan people I talk to are always polite and apologetic for my problem, but can never offer acknowledgement of a known problem. I have had a few calls back from Nissan basically inquiring if my issue has been solved. Of course I tell them no and relate the temporary audio fuse pull solution. They don't seem to know about that either, but will pass that over to the tech folks.
I have filled out a few surveys about my calls to Nissan and continue to tell them the problem is not solved and about the temp fix. I will continue to do this and maybe they will eventually solve the problem. Seems to me that a software update to reset the TCU once a month could resolve some of these issues.

If the fuse pull works and then the problem starts again after a period of time, then your 12v battery is weak and you should replace it.
2013 Ocean Blue SV w/ QC and LED
- +0.2 mi/kwh Aeromods
- 2lb 5Ah LiFe 12v battery

Leafboy
Posts: 172
Joined: Sun Jul 24, 2011 4:46 pm
Delivery Date: 12 Aug 2011
Leaf Number: 5721
Location: Atlanta, GA

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Thu Nov 09, 2017 4:09 pm

Battery is only a year old and checks out fine!
Lew George
2011 Leaf SL-e
Cayenne Red
Longest continously owned Leaf in Georgia.
LED Upgrades: Parking lights, tag lights, back-up lights, side lights, interior lights,DRLs,LED Hi-beam.
Additional upgrades: Horn upgrade, pedestrian warning bell.

GerryAZ
Gold Member
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Location: Phoenix, AZ

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Thu Nov 09, 2017 5:00 pm

I received the EV System warning light (amber car with exclamation point) with car parked in the driveway and not plugged in a few days ago. Error codes indicated EV system incomplete shutdown and TCU antenna failure. It appears that the TCU failed to connect to the server when it tried to send a plug-in reminder. The voltage of the 12-volt battery was fine and everything returned to normal after I used LEAF Spy to clear the DTCs. I did not pull the fuse(s) or disconnect the battery. I received charge complete notification the next morning and the TCU has been working fine since.
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

User avatar
Stanton
Posts: 2061
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Leaf Number: 7458
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Contact: Website Twitter

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Fri Nov 10, 2017 9:19 am

VitaminJ wrote:If the fuse pull works and then the problem starts again after a period of time, then your 12v battery is weak and you should replace it.


Ummm...no.
If the fuse pull works and then the problem starts again after a period of time, then the TCU has "timed out" again.
Dead 12v batteries may be a symptom of TCU issues, but the TCU can "time out" with a perfectly good 12v battery (mine does all the time).
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

bbrowncods
Posts: 187
Joined: Fri Jun 06, 2014 8:53 pm
Delivery Date: 09 Jun 2014
Leaf Number: 339458
Location: Norfolk VA

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Tue Nov 28, 2017 12:16 pm

Have had the battery drain issue since the TCU 3G upgrade in the summer. The last time I could get the car to the dealer before the 12v battery went completely dead. I have all the symptoms outlined in previous posts.

The dealer tells me Nissan is aware of the problem and is working on a solution. There is no permanent fix yet. They turned off the TCU: 12v battery does not die now. I was told I would be contacted when there is a solution. No time frame on when that would be.
2014 Cayenne Red Leaf SL purchased 6/9/2014 (dealer received it on 6/7/2014), manufacture date 4/2014.
7/4/14 -629 miles, Temp 83, SOC 97.5, 59.81 Ahr, SOH 91%, Hx 91.44, 20.2 Kwh, Avg 4.127, High 4.136, Low 4.122, GIDS 267/92.5%.

gmcjetpilot
Posts: 42
Joined: Mon Oct 30, 2017 6:45 pm
Delivery Date: 07 Oct 2017
Leaf Number: 305601
Location: Memphis TN

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Thu Nov 30, 2017 7:36 pm

I got mine upgraded but required two trips. I bought a 2015 and saw that there were open campaigns, brake, front passenger airbag and TCU 2G to 3G. I called Nissan and found out the upgrade of the Telematics was free for 2015 models (as well as the brake and front airbag passenger sensor). On earlier models 2014 and earlier it was $199. The Campaign number is PC450 for the 2015. I called told them this and made appointment. I showed up and made sure they knew there was no charge. They did the work but the paperwork said TCU disabled. I said why they did not upgrade it. They said that cost $199. I said no and called Nissan on the spot. I gave them the PC450 number. After cooling my heals in the waiting room another 15 minutes the manager came out and said their mistake. Well they did not have the TCU part. So I had to come back. I did a week later and it went well.

I think the 2014 and earlier campaign number is PC499. If you have a 2015 it is PC450 and no charge. Make sure you tell dealer this and demand they order part. If they balk call Nissan.

lucasgary
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Joined: Fri Dec 01, 2017 5:18 pm
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Leaf Number: 301278

Re: NissanConnect EV / Telematics Hardware Update, for the post-2G world

Fri Dec 01, 2017 5:21 pm

Just wondering if anyone has tried to get Telematics working in a 2016 Nissan Leaf originally sold in the USA but now located in Canada.

I was able to get registered on Nissan USA. And when I drove near the border I could sign in.

But I can't roam in Canada, as soon as I get a bit to far from the border I lose service.

I'm assuming it's unrelated to the 2g/3g issues described here as I assume the 2016's have 3g service.

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