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B1209 FRONTAL COLLISION DETECTION SRC-145 < DTC/CIRCUIT DIAGNOSIS > C D E F G I J K L M A B SRC N O P B1209 FRONTAL COLLISION DETECTION Description INFOID:0000000005241244 DTC B1209 FRONTAL COLLISION DETECTION When crash zone sensor detects component damage resulting from a front collision, the system blinks or illu- OPERATION The air bags and seat belt pre-tensioners for driver and front passenger are activated by the air bag diagnosis STRUCTURE It consists of crash zone sensor, air bag diagnosis sensor unit, air bags and seat belt pre-tensioners for driver INSTALLATION (Driver air bag module), (Front passenger air bag module), (Air bag diagnosis sensor SB-6, "SEAT BELT RETRACTOR : Exploded View" (Front LH/RH seat belt pre-tensioner). DTC Logic INFOID:0000000005241245 DTC CONFIRMATION PROCEDURE 1. CHECK SELF-DIAG RESULT With CONSULT-III 1. Turn ignition switch ON. 2. Perform “AIR BAG” Self Diagnostic Result. Without CONSULT-III 1. Turn ignition switch ON. 2. Check the air bag warning lamp status. Refer to SRC-16, "Air Bag Warning Lamp Diagnosis" . NOTE: YES >> Refer to SRC-145, "Diagnosis Procedure" NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005510865 WARNING: • Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3 minutes or more. (To discharge backup capacitor.) • Never use unspecified tester or other measuring device. 1. PERFORM COLLISION DIAGNOSIS Perform collision diagnosis.Refer to SR-5, "FOR FRONTAL COLLISION : When SRS is activated in a colli- SR-6, "FOR FRONTAL COLLISION : When SRS is not activated in a collision" . Iscollision diagnosis complete? YES >> GO TO 2. NO >> INSPECTION END 2. FINAL INSPECTION Perform “AIR BAG” Self Diagnostic Result. Is the inspection result normal? DTC No. Trouble diagnosis name DTC detecting condition Possible cause B1209 FRONTAL COLLISION Front seat belt pre-tensioner, front air — |