Diagnosis System
DIAGNOSIS SYSTEM1. BUS CHECK
a. Select "BUS CHECK" from the "OBD/MOBD MENU" screen.
HINT: The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the intelligent tester via the CAN VIM.
b. Press "ENTER" on the intelligent tester.
c. The screen displays the ECUs and sensors that are properly connected to the CAN communication system.
HINT: Properly connected ECUs or sensors that are not displayed on the screen indicate that a communication stop is occurring in the system, sensor, or ECU which is not displayed.
2. CHECK FOR INSTALLED SYSTEMS (ECUS AND SENSORS) THAT USE CAN COMMUNICATION
a. Systems (ECUs, sensors) that use CAN communication vary depending on the vehicle's optional equipment. Check which systems (ECUs, sensors) are installed on the vehicle.
3. DTC TABLE BY ECU
HINT:
- For the CAN communication system, CAN communication system DTCs stored in certain can be displayed 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 TROUBLESHOOTING".How to Proceed With Troubleshooting
U0001-U0293:
a. HV CONTROL ECU (Engine)
HINT:
- DTC communication uses the CAN communication system.
- *: The HV control ECU is malfunctioning if only U0001 is output. Replace the HV control ECU.
b. HV CONTROL ECU (Hybrid control)
- Check for INFORMATION
- U0110-159, U0110-160, U0110-656, and U0110-657 are not CAN communication system DTCs. Therefore, refer to the troubleshooting procedures for the hybrid control system.
c. SKID CONTROL ECU
HINT: DTC communication uses the CAN communication system.
d. COMBINATION METER ECU
HINT: DTC communication uses the CAN communication system.
e. MAIN BODY ECU
HINT:
- DTC communication uses the CAN communication system.
- *: The main body ECU is malfunctioning if B1207 and/or B2326 are output alone. Refer to the DTC chart.
f. POWER STEERING ECU
HINT: DTC communication uses the CAN communication system.
g. RADIO AND NAVIGATION ASSEMBLY
HINT: Although the radio and navigation assembly is connected to the CAN communication system, CAN communication DTCs are not output.
h. CENTER AIRBAG SENSOR
HINT: Although the center airbag sensor is connected to the CAN communication system, CAN communication DTCs are not output.
i. CERTIFICATION ECU
HINT: Although the certification ECU is connected to the CAN communication system, CAN communication DTCs are not output.
4. DTC COMBINATION TABLE
a. DTC COMBINATION TABLE
b. Perform troubleshooting depending on the combination of DTCs output.
HINT:
- HV Control ECU Communication Stop Mode
- Skid Control ECU Communication Stop Mode
- Steering Angle Sensor Communication Stop Mode
- Yaw Rate Sensor Communication Stop Mode
- Certification ECU Communication Stop Mode
- Center Airbag Sensor Communication Stop Mode
- Air Conditioner Amplifier ECU Communication Stop Mode
- Main Body ECU Communication Stop Mode