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DIAGNOSIS SYSTEM (SIREN CONTROL UNIT) SEC-209 < SYSTEM DESCRIPTION > [WITHOUT INTELLIGENT KEY SYSTEM] C D E F G H I J L M A B SEC N O P • The display pattern of the self-diagnosis is complicated. Therefore, repeat self-diagnosis multiple times to check the display pattern correctly. - Malfunctioning part and alarm activation history can be checked effectively by comparing self-diagnosis result display and the record on the memo pad. • It is advised to obtain and record information for the following items which are necessary when investigation is needed. - Self-diagnosis result (Circuit diagnosis, Alarm history, Component diagnosis) 1. INSPECTION START Perform SELF-DIAGNOSIS PROCEDURE described above to start self-diagnosis. >> GO TO 2. 2. CHECK CIRCUIT DIAGNOSIS RESULT Check circuit diagnosis result display. Does hazard warning lamp blink? YES >> GO TO 8. NO >> GO TO 3. 3. CHECK VEHICLE SECURITY SYSTEM OPERATION 1 1. Turn ignition switch OFF. 2. Close hood and all doors. 3. Lock all doors using the Keyfob or door request switch. 4. Check that security indicator lamp blink quickly for 20 seconds. (PRE-ARMED phase) Does security indicator lamp blink quickly? YES >> GO TO 5. NO >> GO TO 4. 4. CHECK MALFUNCTIONING CIRCUIT 1 Check power supply and ground circuit for siren control unit. Refer to SEC-271, "SIREN CONTROL UNIT : . >> INSPECTION END 5. CHECK VEHICLE SECURITY SYSTEM OPERATION 2 1. Check that security indicator lamp blinks slowly. (ARMED phase) 2. Check if siren sounds 5 time or not. Refer to SEC-195, "VEHICLE SECURITY SYSTEM : System Descrip- Does siren sound? YES >> GO TO 7. NO >> GO TO 6. 6. CHECK MALFUNCTIONING CIRCUIT 2 Check the following circuit. SEC-277, "Component Function Check" Number of hazard warning lamp blinks Description 3 times Normal 0 times • Circuit malfunctioning between siren control unit and BCM (communication line) |