Diagnosis System

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: DIAGNOSIS SYSTEM

1. DIAGNOSIS FUNCTION

(a) The diagnosis function makes the master warning light and the multi-information display turn on, and the CRUISE main indicator light blinks as shown in the illustration. When a malfunction occurs in the dynamic radar cruise control system, the DTCs are stored in the driving support ECU.





NOTICE:
* The master warning light turns off if the system returns to a normal condition.
* Since the stored data in the driving support ECU is erased by disconnecting the EFI and ETCS fuses or the battery terminal, do not disconnect them until the inspection has been completed.

2. CHECK INDICATOR

(a) Turn the engine switch on (IG).

(b) Check that the CRUISE main indicator light and RADAR READY indicator turn on when the main switch ON-OFF button is pushed on, and that the indicator light turns off when the ON-OFF button is pushed off.

HINT
* If the indicator check result shows a problem, proceed to troubleshooting for the combination meter section.
* If a malfunction occurs in the vehicle speed sensors, the stop light switch, or other related parts during cruise control driving, the ECU actuates AUTO CANCEL of the cruise control and blinks the CRUISE main indicator light. This indicator light informs the driver of the malfunction. At the same time, the malfunction is stored as a diagnostic trouble code.