bowthom
Posts: 656
Joined: Sun Jul 18, 2010 12:22 pm
Delivery Date: 23 Feb 2011
Leaf Number: 307
Location: Portland Oregon

USB over current U1263

Tue Feb 05, 2019 5:24 pm

Hello Brain Trust of Leaf owners,

My 2011 leaf coughed up a slew of DTC's yesterday. I think most of these are by products of a bad Apple charge cord shorting down the USB connector. So I aired up the tires and cleared the codes BUT the P31C2 popped back up today. I'm thinking harness or connector problems, probably got heated a bit.

Any Ideas before I go do exploratory surgery on my Leaf?
Thanks for your help!

Image
Last edited by bowthom on Wed Feb 06, 2019 8:20 pm, edited 1 time in total.
Reserv Apr 20 - Ord Aug 31
Red - ETEC trim
BLINK inst 3/14/11 (rev 2.1.2B)
P1213 4/29/11 - Charger repl 6/8/11
P1273 2/15/12 - P32270 10/2/13
TCU upgrd 2/15/17
-1bar 11/8/14 -2bars 6/28/16 -3bars 7/12/18
Est. del 2/28/11

Deliver 2/23/11 - 75k+ mi

bowthom
Posts: 656
Joined: Sun Jul 18, 2010 12:22 pm
Delivery Date: 23 Feb 2011
Leaf Number: 307
Location: Portland Oregon

Re: USB over current U1263

Wed Feb 06, 2019 8:18 pm

So my pictures disappeared, hm, they were there yesterday.

Sorry folks,

ON EDIT: pic is back
Reserv Apr 20 - Ord Aug 31
Red - ETEC trim
BLINK inst 3/14/11 (rev 2.1.2B)
P1213 4/29/11 - Charger repl 6/8/11
P1273 2/15/12 - P32270 10/2/13
TCU upgrd 2/15/17
-1bar 11/8/14 -2bars 6/28/16 -3bars 7/12/18
Est. del 2/28/11

Deliver 2/23/11 - 75k+ mi

GerryAZ
Gold Member
Posts: 2160
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: USB over current U1263

Wed Feb 06, 2019 10:01 pm

Clear DTCs, disconnect 12-volt battery for a minute, reconnect battery, and then clear DTCs again. I think that will take care of your issues unless your 12-volt battery is failing. The incomplete shutdown and other communication errors are likely due to telematics control unit (TCU) locking up (see threads regarding EV Connect and 3G TCU upgrade for more information).
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

bowthom
Posts: 656
Joined: Sun Jul 18, 2010 12:22 pm
Delivery Date: 23 Feb 2011
Leaf Number: 307
Location: Portland Oregon

Re: USB over current U1263

Mon Feb 11, 2019 1:28 pm

Hello,
After clearing the codes the "P31C2 00C0 EV/HEV TCU-273" re-appeared. I inspected the harness down under the RS dash behind the glove box but found nothing wrong. I deleted the codes again and after a week of driving a DTC has not been set. I guess that means I got lucky and it's good to go.

Dodged another bullet...
Reserv Apr 20 - Ord Aug 31
Red - ETEC trim
BLINK inst 3/14/11 (rev 2.1.2B)
P1213 4/29/11 - Charger repl 6/8/11
P1273 2/15/12 - P32270 10/2/13
TCU upgrd 2/15/17
-1bar 11/8/14 -2bars 6/28/16 -3bars 7/12/18
Est. del 2/28/11

Deliver 2/23/11 - 75k+ mi

alozzy
Posts: 1333
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017
Location: Vancouver, BC
Contact: Website

Re: USB over current U1263

Mon Feb 11, 2019 8:59 pm

In case the P31C2 error comes back again...

https://static.nhtsa.gov/odi/tsbs/2018/ ... 2-9999.pdf
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV :D

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