High Speed Controller Area Network (CAN)

The high speed CAN is based on SAE J2284, ISO-11898 and is a serial communication language protocol used to transfer messages between electronic modules. Two or more signals can be sent over one CAN circuit allowing two or more electronic modules to communicate with each other. This communication network operates at 500 kilobytes per second (kb/sec) and allows the electronic modules to share their information messages.

Included in these messages is diagnostic data that is output over the CAN+ and CAN- lines to the data link connector (DLC). The diagnostic data such as self-test DTCs or parameter identifiers (PIDs) can be accessed with the scan tool. Information on scan tool equipment is described in DIAGNOSTIC METHODS .