DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | |
| U1003 | CAN COMM CIRCUIT (CAN communication circuit) |
Diagnosis condition | Ignition switch ON |
| Signal (terminal) | CAN communication signal | ||
| Threshold | ECM is not transmitting or receiving CAN communication signal other than OBD (emission related diagnosis) | ||
| Diagnosis delay time | VVEL control module for 2 seconds or more | ||
POSSIBLE CAUSE
- Harness or connectors (VVEL CAN communication line is open or shorted)
- ECM
- VVEL control module