Acc Warning Does Not Operate

ACC WARNING DOES NOT OPERATE





Description
ACC warning function does not operate for vehicle with information display models

NOTE:
Warning functions operating condition is extremely complicated, during operating confirmations, reconfirm the list above twice in order to ensure proper operation. Warning Function.




Diagnosis Procedure
1.CHECK DTC WITH BCM
Check that DTC is not detected with BCM
Is the inspection result normal?
YES - GO TO 2.
NO - Perform trouble diagnosis relevant to DTC indicated.
2.CHECK DTC WITH COMBINATION METER
Check that DTC is not detected with combination meter
Is the inspection result normal?
YES - GO TO 3.
NO - Perform trouble diagnosis relevant to DTC indicated.
3.CHECK COMBINATION METER BUZZER
Check combination meter buzzer. Combination Meter Buzzer.
Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace the malfunctioning parts.
4.CHECK INFORMATION DISPLAY
Check information display. Information Display.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace the malfunctioning parts.
5.REPLACE BCM
- Replace BCM. Service and Repair.
- Confirm the operation after replacement.
Is the result normal?
YES - INSPECTION END
NO - Check intermittent incident. Intermittent Incident.