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Home › Infiniti › 2013 › EX37 Base, AWD › Repair and Diagnosis › Restraints › Restraints Control Systems › SRS Airbag Control System › DTC/Circuit Diagnosis › DTC B0091: Satellite Sensor › Diagnosis Procedure

Diagnosis Procedure

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 DTC 

    Perform each inspection according to the displayed DTC.

    Which DTC is displayed? 

    [UNMATCH]: GO TO  4.

    Other than the above: GO TO 2.

  2. CHECK HARNESS CONNECTOR 

    Check the harness connector.

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Replace harness connector.

  3. CHECK WIRING HARNESS 

    Check the wiring harness externals.

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Replace wiring harness.

  4. REPLACE SATELLITE SENSOR 
    1. Replace B-pillar satellite sensor LH. Refer to "REMOVAL AND INSTALLATION ".
    2. Perform DTC confirmation procedure. Refer to "DTC LOGIC ".

      Is DTC detected? 

      YES: GO TO 5.

      NO: INSPECTION END

  5. REPLACE AIR BAG DIAGNOSIS SENSOR UNIT 
    1. Replace air bag diagnosis sensor unit. Refer to "REMOVAL AND INSTALLATION ".
    2. Perform DTC confirmation procedure. Refer to "DTC LOGIC ".

      Is DTC detected? 

      YES: GO TO  1.

      NO: INSPECTION END

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