Diagnosis System

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: DIAGNOSIS SYSTEM

1. DIAGNOSIS FUNCTION

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





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HINT





* During constant speed control mode, the cruise control indicator light (constant speed control mode) flashes.
* During vehicle-to-vehicle distance control mode, the cruise control indicator light (vehicle-to-vehicle distance control mode) flashes.

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NOTICE:
The master warning light turns off if the system returns to normal.

2. CHECK INDICATOR

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

(b) Check that the cruise control indicator light and RADAR READY indicator turn on when the cruise control switch is pushed on and that the indicator light turns off when the cruise control switch is pushed off.

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