OUTLINE
The Controller Area Network (CAN) is a serial data communication network for real time application. It is a multiplex communication network equipped in a vehicle, and has communication speeds of 500 kbps (HS-CAN), and the ability to detect malfunctions.
The HS-CAN consists of the V bus, bus 1, bus 2, bus 3, bus 4, bus 5 and local bus.
The communication wire used is a twisted-pair wire. The bus line has a high line (2.5 V to 3.5 V of voltage is applied) and a low line (1.5 V to 2.5 V of voltage is applied).
The terminating resistors for each bus are located as shown in the following table.
| Bus | Terminating Resistor Location |
|---|---|
| CAN V Bus | Central Gateway ECU (Network Gateway ECU) |
| CAN Bus 1 | Central Gateway ECU (Network Gateway ECU) |
| CAN Bus 2 |
|
| CAN Bus 3 | Central Gateway ECU (Network Gateway ECU) |
| CAN Bus 4 |
|
| CAN Bus 5 |
|