Diagnosis Procedure

CHECK DTC PRIORITY
If DTC "C1A03-00" is displayed with DTC "U1000-01" or "C1A04-00", first diagnose the DTC "U1000-01" or "C1A04-00".

Is applicable DTC detected?

YES

Perform diagnosis of applicable.
- U1000-01: Refer to DTC Description
- C1A04-00: Refer to DTC Description
NO

GO TO 2.
CHECK DATA MONITOR
1. Start the engine.
2. Drive the vehicle.
3. Check that the value of "VHCL SPD AT" is almost the same as the value of "VHCL SPEED SE" in "DATA MONITOR" of "ICC/ADAS".
CAUTION: Be careful of the vehicle speed.

Is the inspection result normal?

YES

Replace the ADAS control unit. Refer to Removal and Installation .

NO

GO TO 3.
CHECK TCM SELF-DIAGNOSIS RESULTS
1. Perform "All DTC Reading".
2. Check if any DTC is detected in "Self Diagnostic Result" of "TRANSMISSION".
Is any DTC detected?

YES

Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index .

NO

GO TO 4.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in "Self Diagnostic Result" of "ABS".

Is any DTC detected?

YES

Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index .

NO

Replace the ADAS control unit. Refer to Removal and Installation .