Information Bus: Testing and Inspection

Troubleshooting for CAN-DTC

Perform this troubleshooting when CAN-DTC is detected.

Note:
^ When performing this troubleshooting, be sure to have full understanding of Precaution of Troubleshooting for CAN and observe it.
^ It may be possible that CAN system has trouble because of fuse blown or low battery voltage.
Before troubleshooting, check to make sure that fuse, battery voltage and generator status are normal.
^ When performing "Communication Bus Check" using SUZUKI scan tool (SUZUKI-SDT) in each step of this troubleshooting, use the following table to determine whether the control module is in good condition or not.
Also, while performing "Communication Bus Check", do not perform any work other than instructed in this troubleshooting. Or, it may occur that display of control module/sensor on SUZUKI-SDT screen and/or its background color may change.





^ When disconnecting each control module connector in this troubleshooting, various DTCs will be detected. Be sure to clear DTCs in the following control modules after completing this troubleshooting.
^ ECM
^ BCM
^ TCM
^ Keyless start control module
^ 4WD control module
^ ESP(R) control module
^ HVAC control module (Auto A/C model)
^ P/S control module (electric type)

Wiring Diagram
Refer to Troubleshooting for Communication Error with Scan Tool Using CAN.

Trouble area
Refer to Troubleshooting for Communication Error with Scan Tool Using CAN.

Step 1-2:

Step 3-4:

Step 5-8:

Step 9-12:

Step 13-15:

Step 16: