| 摘要 |
PURPOSE: A dark current generation unit diagnostic device using can communications and a method thereof are provided to easily diagnose the failure of multimedia control module, chassis and vehicle body. CONSTITUTION: A dark current generation unit diagnostic device using can communications comprises a body CAN module(12), chassis CAN module(14), multimedia CAN module(16), a local switch(18), and a smart junction box(10). The body CAN module is embedded in a plurality of electric modules for the plurality of body control to check the CAN communications. The chassis CAN module is embedded in the plurality of electric modules for chassis control to check the CAN communications. The multimedia CAN module is embedded in the plurality of electric modules for multimedia control to check the CAN communications. [Reference numerals] (12) Body CAN Module; (14) Chassis CAN Module; (16) MM CAN Module; (18) Local switches(Door, Trunk, and etc); (22) Body CAN Transceiver; (24) Chassis CAN Transceiver; (26) MM CAN Transceiver; (28) Switch input; (29) Switching module; (30) B+ power; (AA) Power blocking; (BB) B+1 load group; (CC) B+2 load group; (DD) B+3 load group; (EE) CAN communication load group |
