CAN Buses: Difference between revisions

Created page with "The Nissan Leaf uses multiple CAN buses. The two most researched and most important are EV-CAN and CAR-CAN. == EV-CAN == == CAR-CAN == == IT-CAN == == M-CAN == == External Links == * https://github.com/dalathegreat/leaf_can_bus_messages"
 
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The Nissan Leaf uses multiple CAN buses. The two most researched and most important are EV-CAN and CAR-CAN.
The Nissan Leaf uses multiple CAN buses. The two most researched and most important are EV-CAN and CAR-CAN.
== CAR-CAN (or VEHICLE CAN) ==
This bus connects various low-voltage control systems, including:
* [[Vehicle Control Module (VCM)]]
* [[Intelligent Power Distribution Module (IPDM)]]
* [[Combination Meter]]
* [[Vehicle Sound for Pedestrians (VSP) module]]
* [[Body Control Module (BCM)]]
* [[CAN Gateway]]


== EV-CAN ==
== EV-CAN ==
This bus connects the high-voltage components, plus the VCM. Devices on this bus:
* [[Vehicle Control Module (VCM)]]
* [[Traction Motor Inverter]]
* [[Power Delivery Module (PDM)]]
* Air Conditioning system
* [[Lithium Battery Controller (LBC)]]
* [[CAN Gateway]]
== CHASSIS-CAN ==
Devices on this bus:
* Steering angle sensor
* [[EPS Control Unit]]
* [[Chassis Control Module]]
* Electric parking brake
* Brake control module
* ABS system
* [[CAN Gateway]]
== ADAS-CAN ==
Stands for "Advanced Driver Assistance System". This bus appears to just connect the [[ADAS Control Unit]] to the [[CAN Gateway]] in order to allow it to communicate with devices on other buses.
Devices on this bus:
* [[ADAS Control Unit]]
* [[CAN Gateway]]
== ITS-CAN ==
ITS may stand for "Intelligent Transportation Systems".
Devices on this bus:


== CAR-CAN ==
* [[Distance Sensor]]
* [[Lane Camera Unit]]
* [[ADAS Control Unit]]
 
== ITS2-CAN ==
ITS may stand for "Intelligent Transportation Systems".
 
Devices on this bus:
 
*[[Around View Monitor Control Unit]]
* [[Side Radars]] (left and right)
* [[CAN Gateway]]
 
== AV-CAN ==
Only for ZE0/AZE0. Connects the buttons surrounding the [[AV Control Unit]] to the [[AV Control Unit]].
 
== IC-CAN ==
Appears to be a point-to-point link between the [[ADAS Control Unit]] and the [[Chassis Control Module]].


== IT-CAN ==
== IT-CAN ==
May stand for "Information Technology".
The functionality of the IT-CAN bus is not well-documented. Devices on this bus:
* [[Telematics Control Unit (TCU)]]
* [[AV Control Unit]]
* [[CAN Gateway]]


== M-CAN ==
== M-CAN ==
Devices on this bus:
* [[Telematics Control Unit (TCU)]]
* [[Combination Meter]]
* [[AV Control Unit]]


== External Links ==
== External Links ==


* https://github.com/dalathegreat/leaf_can_bus_messages
* https://github.com/dalathegreat/leaf_can_bus_messages