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SEAT BELT WARNING LAMP SBC-9 < DTC/CIRCUIT DIAGNOSIS > C D E F G I J K L M A B SBC N O P SEAT BELT WARNING LAMP Diagnosis Procedure INFOID:0000000009161820 1. CHECK COMBINATION METER GROUND CIRCUIT 1. Turn the ignition switch OFF. 2. Disconnect air bag diagnosis sensor unit connector. 3. Driver seat belt is fastened. 4. Turn the ignition switch ON. 5. Check that voltage between air bag diagnosis sensor unit harness connector and ground. Is the inspection result normal? YES >> Replace air bag diagnosis sensor unit. NO >> GO TO 2. 2. CHECK COMBINATION METER GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect combination meter connector. 3. Check continuity between combination meter harness connector and air bag diagnosis sensor unit har- 4. Check continuity between combination meter and ground. Is the inspection result normal? YES >> Replace combination meter. NO >> Repair or replace harness between combination meter and air bag diagnosis sensor unit. (+) (–) Voltage (V) (Approx.) Air bag diagnosis sensor unit Connector Terminal M157 24 Ground Battery voltage Combination meter Air bag diagnosis sensor unit Continuity Connector Terminal Connector Terminal M53 29 M157 24 Existed Combination meter Ground Continuity Connector Terminal M53 29 Not existed |