net0drive
New member
Hi Folks! My car won't charge on AC (fortunately I have 2 DC Fast Chargers in town)
Quick deets:
2012 with 80K miles and 8 bars. Purchased locally 18 months ago and have had no issues for 15K miles of EV bliss. Daily charging at home using GE Wattstation.
Just last week we saw a warning light on the EVSE but after a couple tries it charged fine. Didn't think anything of it. A few days later - no charge at all! When plugged in, the car lights the right blue indicator on the dash, makes some clicking, the EVSE energizes the (rather loud) contactor, and it appears to charge for about 12 seconds, then switches off.
DTCs:
B2840 016C CHARGER On Board Charger VC-74
P3173 00C0 EV/HEV On Board Charger Sys EVC-236
Trouble-shooting:
Tried on Chargepoint L2 with same results.
Tried L1 Nissan plug-in also same results.
Tested Prox pin = 4.2VDC
Tested Pilot wire: Observed some level of KOhm in both directions but after a few seconds they go to infinite ohms, in both directions.
Opened up the OBC and inspected the circuit boards, hoping to find an easy diode that might be blown in open circuit, but every diode looks healthy.
Then I saw a chip on the lower board with a small hole in it, as if a tiny little explosive blew away a bit of the plastic. It is a 16 pin chip and some of the letters are missing (blown away), but the second line reads: [delta]U 16ZF7GW
(once I figure out how to post an image I will happily share the picture)
Can I assume that this OBC is dead? Another casualty of the GE Wattstation car-killer?
I was wondering - since a number of Leaf drivers have had to replace their OBC 's, some due to diode failure on the upper board, does anyone have a good lower circuit board sitting around? I could swap it in and test to see if it works. Since the car is down to 8 bars I am not planning on buying a $1600 new OBC - (and than possibly a new EVSE as well......)
Thanks so much for reading!
Quick deets:
2012 with 80K miles and 8 bars. Purchased locally 18 months ago and have had no issues for 15K miles of EV bliss. Daily charging at home using GE Wattstation.
Just last week we saw a warning light on the EVSE but after a couple tries it charged fine. Didn't think anything of it. A few days later - no charge at all! When plugged in, the car lights the right blue indicator on the dash, makes some clicking, the EVSE energizes the (rather loud) contactor, and it appears to charge for about 12 seconds, then switches off.
DTCs:
B2840 016C CHARGER On Board Charger VC-74
P3173 00C0 EV/HEV On Board Charger Sys EVC-236
Trouble-shooting:
Tried on Chargepoint L2 with same results.
Tried L1 Nissan plug-in also same results.
Tested Prox pin = 4.2VDC
Tested Pilot wire: Observed some level of KOhm in both directions but after a few seconds they go to infinite ohms, in both directions.
Opened up the OBC and inspected the circuit boards, hoping to find an easy diode that might be blown in open circuit, but every diode looks healthy.
Then I saw a chip on the lower board with a small hole in it, as if a tiny little explosive blew away a bit of the plastic. It is a 16 pin chip and some of the letters are missing (blown away), but the second line reads: [delta]U 16ZF7GW
(once I figure out how to post an image I will happily share the picture)
Can I assume that this OBC is dead? Another casualty of the GE Wattstation car-killer?
I was wondering - since a number of Leaf drivers have had to replace their OBC 's, some due to diode failure on the upper board, does anyone have a good lower circuit board sitting around? I could swap it in and test to see if it works. Since the car is down to 8 bars I am not planning on buying a $1600 new OBC - (and than possibly a new EVSE as well......)
Thanks so much for reading!