Circuit description
The engine control computer, the transmission control computer, the skid control computer (brake actuator assembly), and the combination meter assembly send and receive data via CAN communication line. When a communication error occurs between each computer, the engine control computer outputs the DTCs.
DTC DETECTION CONDITION
| DTC No. | DTC detection conditions | Faulty part |
|---|---|---|
| U0073 | Bus OFF status continues for 0.436 second or more. (1 trips detection logic) |
|
| U0101 | Communication between ECM and TCM becomes impossible for 0.5 second or more. (1 trips detection logic) |
|
| U0122 | Communication between ECM and skid control ECM becomes impossible for 0.5 second or more. (1 trips detection logic) |
|
| U0155 | Communication between ECM and combination meter assembly becomes impossible for 0.5 second or more. (1 trips detection logic) |
|
| U0402 | Invalid data has been received from TCM for 2 seconds or more. (1 trips detection logic) |
|
| U0416 | Invalid data has been received from skid control ECM for 2 seconds or more. (1 trips detection logic) |
|
| U0423 | Invalid data has been received from combination meter assembly for 2 seconds or more. (1 trips detection logic) |
|