CAN Communication Check
Precautions: Precautions for Diagnosing Trouble · General safety (00)
Using SUZUKI scan tool, execute “Communication Bus Check” and check DTCs of all control modules connected to CAN Communication Bus.
| Condition | Action | Reference |
|---|---|---|
| Only history DTC is detected in either of system | Perform the following steps.
1.Disconnect and connect all control module and sensor connectors connected to the CAN communication line.
2.Check all control module power sources (including fuses) connected to the CAN communication line. 3.Start the engine and check DTC while idling. If the detected DTC is a history DTC, there may be a temporary malfunction due to poor connection at the connector or faulty power supply. |
— |
| “Control Module Bus Off” is detected in either of system (current DTC) | Perform “Troubleshooting for Communication Bus Off”. |
 |
| Only “Lost Communication” is detected in either of system (current DTC) | Perform “Troubleshooting for Lost Communication”. |
|
| No display on SUZUKI scan tool (It is not possible to communicate with any systems.) | Check if SUZUKI scan tool is communicable by connecting to another vehicle. | — |
| Perform “Troubleshooting for Communication” Bus Off. |
|