DTC Description
DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independently). In CAN communication, control units are connected with 2 communication lines (CAN-High, CAN-Low) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart .
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms(Trouble diagnosis content) | DTC detection condition | ||
|---|---|---|---|---|
| U1000-01 | CAN COMM CIRCUIT(CAN COMM CIRCUIT) | [-] | Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | CAN communication signal | |||
| Threshold | - | |||
| Diagnosis delay time | 2 seconds or more | |||
POSSIBLE CAUSE
CAN communication system
FAIL-SAFE
The system using the CAN communication signal from control unit which cannot communicate does not function