Leaf 2013 Error Codes

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DinAmerica

New member
Joined
Jun 22, 2020
Messages
1
Hopefully you guys can help me, because the dealer wasn’t able to. When I try to start my 2013 Nissan Leaf I usually get an ‘i-key system fault’ error followed by “When parked apply parking brake”. After receiving the message, I can put my car into drive, but the dashboard does not light up and the power steering does not work. I have to restart it 20 - 50 times before the error message goes away and I am able to drive. I have replaced the key’s battery and it locks and unlocks the car fine. I have also replaced the 12V car battery as other threads suggested, but that didn’t help. The car dealership replaced the Intelligent Power Distribution Module (IPDM) but the error persisted. Any suggestions? I am getting the following error codes:

C118C 0109 ABS EV/HEV System BRC-126

U1000 0008 BCM CAN Comm circuit
U0415 0008 BCM Vehicle Speed BCS-68
B2557 0009 BCM Vehical Speed SEC-74
C1A70 0109 BRAKE Brake Control System BR-160
U1000 0109 BRAKE CAN Comm Circuit
U1510 0109 BRAKE Brake Control Comm BR-177

P3194 000A EV/HEV CAN Error EVC-270
U1000 0008 EV/HEV CAN Comm Circuit
P31B7 000A EV/HEV CAN Error EVC-285
P31B4 000A EV/HEV CAN Error EVC-279
P31C5 0008 EV/HEV VCM EVC-277
P1574 000B EV/HEV ASCD Vehicle Speed Sensor EVC-185
U1263 0208 MULTI AV USB Overcurrent AV-91
P18AB 000A SHIFT
U1000 000A SHIFT CAN Comm Circuit
U1A08 0008 TCU Tel Antenna No Conn AV-201
 
All of those errors are CAN Bus communication errors or directly related to communication errors. To clear all of the error codes will probably require clearing codes with Leaf Spy (or Nissan's Consult 3+ system) using the following procedure:
1. Read and clear codes with Leaf Spy.
2. Disconnect 12V battery for a few minutes.
3. Reconnect 12V battery.
4. Read and clear codes with Leaf Spy.
5. Read error codes with Leaf Spy. If any error codes remain, then repeat steps 1 through 5. You may need to repeat this process several times to get all of the errors cleared so that the various control modules can communicate with each other over the CAN Bus.

It is possible that one of the modules is failing and causing the communication errors (which then lock up other modules on the CAN Bus), but the most likely cause is low 12V battery voltage.
 
Eliminating the 12 volt battery as the cause requires something like this:

* Fully charge and then install (or vice versa) new 12 volt battery.

* Clear codes with LeafSpy Pro.

* Clear any remaining codes by disconnecting 12 volt battery. (It's a good idea to also top off the 12 volt battery while disconnected.)

* Reconnect 12 volt battery.
 
I’ve got the same errors on my car this morning. I have changed the 12v battery and reset the codes but no luck. Is the next step replacing the BCM?
 
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