|
|
B1186, B1187, B1188, B1189, B1190, B1191 DIAGNOSIS SENSOR UNIT SRC-149 < DTC/CIRCUIT DIAGNOSIS > C D E F G I J K L M A B SRC N O P B1186, B1187, B1188, B1189, B1190, B1191 DIAGNOSIS SENSOR UNIT Description INFOID:0000000009946283 • It detects a shock that is more than the specified level and monitors whether the driver and passenger air bags, side air bag, curtain air bag, and pre-tensioner seat belts operate normally. • It contains the “G” sensors for both frontal and side collisions and spare battery function in case of main bat- tery damage in collision. DTC Logic INFOID:0000000009946284 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. CHECK SELF-DIAG RESULT With CONSULT 1. Turn ignition switch ON. 2. Perform “AIR BAG” Self Diagnostic Result. Without CONSULT 1. Turn ignition switch ON. 2. Check the air bag warning lamp status. Refer to SRC-18, "Diagnosis with Air Bag Warning Lamp" . NOTE: YES >> Refer to SRC-149, "Diagnosis Procedure" NO >> INSPECTION END Diagnosis Procedure INFOID:0000000009946285 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. CHECK HARNESS CONNECTOR Check the harness connector. Is the inspection result normal? YES >> GO TO 2. NO >> Replace harness connectors. 2. CHECK WIRING HARNESS Check the wiring harness externals. YES >> GO TO 3. NO >> Replace wiring harness. 3. REPLACE AIR BAG DIAGNOSIS SENSOR UNIT 1. Replace air bag diagnosis sensor unit. Refer to 2. Perform DTC confirmation procedure. Refer to DTC Display contents of CONSULT DTC detecting condition Possible cause B1186 CONTROL UNIT Air bag diagnosis sensor unit is malfunctioning Malfunction in air bag diagnosis sensor unit |