Ninjarider1978 wrote: ↑
Tue Dec 01, 2015 9:53 am
My 2015 S just had the same problems as mentioned above in numerous other posts. I would not expect it to be a battery problem since the vehicle is only 2 months old. Just last Friday I had the recall performed on the vehicle the same as the person above. It is not that cold here, in fact warmer than it has been in the mornings.
Read the DTC codes
U100D 0109 ABS CAN Comm Circuit
U110D 0109 ABS E-Driven Intelligent Brake Comm BRC-130
Ok None ---> AIR BAG
Ok None ---> BCM
Ok None ---> EPS
P3195 000B EV/HEV CAN Error EVC-272
U1000 000B EV/HEV CAN Comm Circuit
Ok None ---> HVAC
Ok None ---> HV BATTERY
Ok None ---> IPDM E/R
Ok None ---> METER
Ok None ---> MOTOR CONTROL
Ok None ---> SHIFT
This morning backing out of the garage I had low brake pedal, no power assist, and red and yellow brake warning lights on the dash. LeafSpy showed the exact DTC codes noted by Ninjarider1978. I suspected low battery voltage because both ABS and EV/HEV error areas included "CAN Comm Circuit".
What was unusual is that, wanting to charge (level 2) for an hour at 9:30 last night, I set the charge end timer for 10:30 PM and plugged in. Usually, I'd have set the charge start time to 6 AM and charge end time to 7 AM if I wanted to charge for an hour. The car was plugged in and not charging for 10 hours until 8:30 this morning.
What was not unusual was the OBDII dongle plugged in, as it has been 24x7 for the year and half I've had the car.
I suspect the first or both of these circumstances brought the 12V battery voltage too low this morning.
The ABS DTCs wouldn't clear, so I disconnected the 12V for about 10 minutes. After reconnecting, the DTCs cleared, the dashboard warning lights have remained off, and the brakes have worked normally.
It was one of the colder mornings so far this fall, but at 59 F, not all that cold.