lorenfb
Posts: 1178
Joined: Tue Dec 17, 2013 10:53 pm
Delivery Date: 22 Nov 2013
Leaf Number: 416635
Location: SoCal

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Sat Aug 12, 2017 10:36 pm

LeftieBiker wrote:Is it possible to either wire in a remote On/Off switch for the TC unit's power, or to relocate the power supply to a circuit that's only live when the car is on?


That could possibly be done if one had access to the Leaf's wiring diagram. To start with, hopefully someone has taken
a picture of the location of the TCU and its electrical connector. Once that was done, obviously no CarWings access
remotely unless the Leaf was powered-up. But the same can be achieved until a viable update arrives by not accessing
the Leaf remotely via CarWings, which I presently do.

cwerdna
Gold Member
Posts: 6851
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Sat Aug 12, 2017 11:48 pm

lorenfb wrote:
LeftieBiker wrote:Is it possible to either wire in a remote On/Off switch for the TC unit's power, or to relocate the power supply to a circuit that's only live when the car is on?


That could possibly be done if one had access to the Leaf's wiring diagram. To start with, hopefully someone has taken
a picture of the location of the TCU and its electrical connector. Once that was done, obviously no CarWings access
remotely unless the Leaf was powered-up. But the same can be achieved until a viable update arrives by not accessing
the Leaf remotely via CarWings, which I presently do.

viewtopic.php?p=385507#p385507
viewtopic.php?p=148255#p148255

When I still had the 2G TCU and changed the cabin air filter by removing the whole glove box, I recall seeing a box (too bad I didn't take a pic) from Continental that had an IMEI (which made me suspect it was the TCU) and other numbers on it. I recall it looked like what Ingineer posted.

'13 blue Leaf SV w/premium package (owned)
'13 blue Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

LeftieBiker
Posts: 6554
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Sun Aug 13, 2017 2:30 am

My thought was to wire in a remote power switch, turning the device off when the car would be sitting for more than a day, and leaving it on when the TCU was expected to be needed.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

GerryAZ
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Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Sun Aug 13, 2017 5:58 am

LeftieBiker wrote:My thought was to wire in a remote power switch, turning the device off when the car would be sitting for more than a day, and leaving it on when the TCU was expected to be needed.


If you are really concerned when the car will be parked for extended time, just pull the fuse that supplies power to the telematics control unit.
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
eddiebo924
Posts: 34
Joined: Thu Aug 14, 2014 12:11 pm
Delivery Date: 01 Sep 2014
Location: Firestone, CO

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Sun Aug 13, 2017 6:01 am

lorenfb wrote:But the same can be achieved until a viable update arrives by not accessing
the Leaf remotely via CarWings, which I presently do.


lorentfb,

Are you saying that while the car is sitting, if you don't try to ping it using CarWings things should be fine?

Thanks!
2015 LEAF SL / 30 Solar panels on the roof keeping the LEAF charged
Eddie B.
Firestone, CO

lorenfb
Posts: 1178
Joined: Tue Dec 17, 2013 10:53 pm
Delivery Date: 22 Nov 2013
Leaf Number: 416635
Location: SoCal

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Sun Aug 13, 2017 9:41 am

eddiebo924 wrote:
lorenfb wrote:But the same can be achieved until a viable update arrives by not accessing
the Leaf remotely via CarWings, which I presently do.


lorentfb,

Are you saying that while the car is sitting, if you don't try to ping it using CarWings things should be fine?

Thanks!


Yes, for the last 6 months I haven't used CarWings and no problems, even when I update the charging stations.
Previously when using CarWings, the TCU would 'hang' requiring a reset by disconnecting its power via a fuse.
It's likely that if left in that mode, the TCU won't power-down causing excess current drain on the battery when the
Leaf is powered-off. Not only may the TCU cause an excess current drain, but it could 'keep-alive' a CAN bus,
resulting in potentially other ECUs from entering their 'sleep' mode (power-down) causing more current drain.

LeftieBiker
Posts: 6554
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Sun Aug 13, 2017 12:00 pm

GerryAZ wrote:
LeftieBiker wrote:My thought was to wire in a remote power switch, turning the device off when the car would be sitting for more than a day, and leaving it on when the TCU was expected to be needed.


If you are really concerned when the car will be parked for extended time, just pull the fuse that supplies power to the telematics control unit.


Not everyone would want to be pulling a fuse if they could flip a switch.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

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