Posts: 11136
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Nissan Connect EV (Carwings) having problems?

Mon Aug 03, 2020 11:11 am

eclecticflower wrote:
Mon Aug 03, 2020 9:16 am
I've had so much trouble in the last year with this app not working, with 4 different TCU swaps since the original $199 upgrade to 3G, that I've finally given up in despair on a permanent fix.

Often, the programming just disappeared from the TCU and display screen, causing a dealer visit to fix/reprogram. Everybody (Nissan, dealer) points at weak cell reception & 3G service "going away" for the communication problem or my 12v battery was low, wiping programming. One person here posted their TCU drained their 12v battery - didn't know the TCU could actually be the cause, just that there was some association. I've gone to placing a battery maintainer on my 12v.
Re: battery drain due to buggy 3G TCU, NTB18-045 (and now 045b) resolves this: ... 6-9999.pdf ... 36#p531736 ... 31#p535008 ... 31#p534889 - I didn't have the battery drain issues but I definitely was hitting the yellow ! car light and P3131 DTCs until I found a workaround and before NTB18-045 was applied.

'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.

Posts: 575
Joined: Tue Apr 24, 2012 10:35 am
Delivery Date: 04 Jun 2012
Leaf Number: 021559
Location: Kansas City, Missouri

Re: Nissan Connect EV (Carwings) having problems?

Mon Aug 03, 2020 12:55 pm

Thank you , cwerdna. I forwarded a message to the dealer associate I've been working with, asking if he could check my service record to see if the bulletin had been applied. Appreciate your help!

2012 Cayenne Red LEAF SL: Vanity Plate - G'BYGAS
Reserved 08/10, Ordered 3/12/2012, $99 Refunded 5/16/12, Delivered 6/4/12.

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