Can Communication Signals Control
By interchanging information between control modules such as the TCM, ECM, ABSCM & H/U, etc., the modules are controlled in accordance with the vehicle's driving conditions.
In CAN (Controller Area Network) communication, each control module is connected with 2 lines and a large amount of information is interchanged through such a small number of wiring. Each control module sends and receives information and reads only the necessary information for its own purpose.
Main signals sent and received for transmission control
CAN COMMUNICATION SIGNALS CONTROL CHART
| TCM | ECM | ABSCM&H/U | Body integrated unit | Combination meter | |
|---|---|---|---|---|---|
| Sports mode switch-cum-manual mode switch signal | IN | OUT | |||
| Upshift signal (manual mode) | IN | OUT | |||
| Downshift signal (manual mode) | IN | OUT | |||
| Brake switch signal | IN | OUT | |||
| ABS signal | IN | OUT | |||
| ENG AT cooperation signal | IN | OUT | |||
| OUT | IN | ||||
| Range position signal | OUT | IN | IN/OUT | IN | |
| AT warning light signal (SPORT indicator light) | OUT | IN/OUT | IN | ||
| Sports shift warning buzzer signal | OUT | IN/OUT | IN | ||
| AWD warning light signal Also used as FWD indicator light signal | OUT | IN/OUT | IN | ||
| IN: received | |||||
| OUT: sent | |||||