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CAN Communication Check

Using SUZUKI scan tool, execute "Communication Malfunction DTC" under "Bus check" and check DTCs of all control modules, etc. connected to CAN Communication Bus.

Condition  Action  Reference 
Only history DTC was detected in either of system Check DTC as follows:
  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.
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"Control Module Bus Off" was detected in either of system (current DTC) Perform "Troubleshooting for Communication Bus Off ". Refer to
Only "Lost Communication" was detected in either of system (current DTC) Perform "Troubleshooting for Lost Communication ". Refer to
No display on SUZUKI scan tool (It is not possible to communicate with all systems.) Check if SUZUKI scan tool is communicable by connecting it to another vehicle. -
Perform "Troubleshooting for Lost Communication ". Refer to
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