Diagnosis System

DIAGNOSIS SYSTEM

1. BUS CHECK

HINT: The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the intelligent tester via CAN VIM.




a. Select "BUS CHECK" from the "OBD / MOBD MENU" screen.




b. Press "ENTER" on the intelligent tester via CAN VIM.




c. The screen displays the ECUs and sensors that are properly connected to the CAN communication system.

HINT: There is a communication stop in the system of any properly connected ECUs or sensors that are not displayed.

2. CHECK FOR INSTALLED SYSTEMS (ECUS & SENSORS) THAT ADOPT CAN COMMUNICATION




a. Systems (ECUs, sensors) that adopt CAN communication vary depending on the vehicle's optional settings. Check which systems (ECUs, sensors) are installed on the vehicle.

3. DTC TABLE BY ECU

HINT:
- In the CAN communication system, CAN communication system DTCs can be displayed by the ECU using the intelligent tester.
- If CAN communication system DTCs are output, trouble cannot be determined only by the DTCs. Perform troubleshooting according to "HOW TO PROCEED WITH TROUBLE SHOOTING". (If, however, U0235 or U1102 is output alone, check the dynamic laser cruise control system.)




a. ECM

HINT:
- DTC communication uses the CAN communication system.
- Cruise control ECU data is also output.




b. SKID CONTROL ECU

HINT: DTC communication uses the SIL line.

c. NETWORK GATEWAY ECU

HINT: The gateway ECU is connected to the CAN communication system but CAN communication system DTCs are not output.