Reading and Clearing Diagnostic Trouble Codes

DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)


On Board Diagnosis Function


DESCRIPTION
The DTC is displayed on the information display by operating the ICC steering switch.

On Board Self-diagnosis System Diagram






METHOD OF STARTING

CAUTION:
Start condition of on board self-diagnosis
- ICC system OFF
- DCA system OFF
- Vehicle speed 0 km/h (0 MPH)
1. Turn the ignition switch OFF.
2. Start the engine.





3. Wait for 5 seconds after starting the engine. Push up the
RESUME/ACCELERATE switch 5 times and push down the
SET/COAST switch 5 times within 10 seconds.

NOTE:
If the above operation cannot be performed within 10 seconds after waiting for 5 seconds after starting the engine, repeat the procedure from step 1.
4. The DTC is displayed on the set vehicle speed indicator (1) on the ICC system display on the information display when the on board self-diagnosis starts. Testing and Inspection.






NOTE:
- It displays for up to 5 minutes and then stops.
- If multiple malfunctions exist, up to 6 DTCs can be stored in memory at the most, and the most recent one is displayed first.

WHEN THE ON BOARD SELF-DIAGNOSIS DOES NOT START
If the on board self-diagnosis does not start, check the following items.






HOW TO ERASE ON BOARD SELF-DIAGNOSIS
1. Turn the ignition switch OFF.
2. Start the engine, and then start the on board self-diagnosis.





3. Press the CANCEL switch 5 times, and then press the DISTANCE switch 5 times under the condition that the on board self-diagnosis starts.

NOTE:
- Complete the operation within 10 seconds after pressing the
CANCEL switch first.
- If the operation is not completed within 10 seconds, repeat the procedure from step 1.
4. DTC 55 is displayed after erasing.

NOTE:
DTCs for existing malfunction can not be erased.
5. Turn ignition switch OFF, and finish the diagnosis.