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SEC-60 < COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM] ULTRA SONIC SENSOR ULTRA SONIC SENSOR Description INFOID:0000000001115998 Siren control unit sounds the siren when it received a trigger signal from ultra sonic sensor. Component Function Check INFOID:0000000001115999 1. CHECK SIREN CONTROL UNIT FUNCTION 1. Turn ignition switch OFF. 2. Get in the vehicle and close all doors. 3. Lock doors with Intelligent Key. 4. Check that security indicator blinks when theft warning system is armed. 5. With hand, intercept the signal between left and right sensors. Does the siren sound? YES >> Siren control unit function is OK. NO >> Refer to . Diagnosis Procedure INFOID:0000000001116000 1. CHECK SIREN FUNCTION 1. Turn ignition switch ON. 2. Perform “ACTIVE TEST” (“VEHICLE SECURITY HORN”) with CONSULT-Ill. Does the siren sound? YES >> GO TO 4. NO >> GO TO 2. 2. CHECK SIREN SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect BCM and siren connectors. 3. Check continuity between BCM harness connector and siren connector. 4. Check continuity between siren connector and ground. Is the inspection result normal? YES >> Replace siren. Refer to SEC-153, "Removal and Installation" . NO >> Repair or replace harness. 3. CHECK SIREN CONTROL UNIT SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect siren control unit and siren connector. 3. Check continuity between siren control unit harness connector and siren connector. 4. Check continuity between siren control unit harness connector and ground. BCM connector Terminal Siren connector Terminal Continuity M65 8 B68 1 Existed 16 3 Existed Siren connector Terminal Ground Continuity B68 1 Ground Not existed 3 Not existed Siren control unit connector Terminal Siren connector Terminal Continuity M94 3 B68 4 Existed |