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)
- Turn the ignition switch OFF.
- Start the engine.
- 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.
- The DTC is displayed on the set vehicle speed indicator
on the ICC system display on the information display when the on board self-diagnosis starts. Refer to DTC Index .
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.
| Assumed abnormal part | Inspection item | |
|---|---|---|
| Information display | Combination meter malfunction | Check that the self-diagnosis function of the combination meter operates. Refer to Diagnosis Description . |
| ICC steering switch malfunction | Perform the inspection for DTC "C1A06". Refer to DTC Description . | |
| Harness malfunction between ICC steering switch and ADAS control unit | ||
| ADAS control unit malfunction | ||
| Harness malfunction between ICC steering switch and ECM | ||
| ECM malfunction | ||
| ADAS control unit malfunction |
|
|
HOW TO ERASE ON BOARD SELF-DIAGNOSIS
- Turn the ignition switch OFF.
- Start the engine, and then start the on board self-diagnosis.
- 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.
- DTC 55 is displayed after erasing.NOTE: DTCs for existing malfunction can not be erased.
- Turn ignition switch OFF, and finish the diagnosis.