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Home >> Infiniti >> 2015 >> QX50 Base, RWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> SRS Airbag Control System >> DTC/Circuit Diagnosis >> DTC B0099: 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?

    [B0099-86] 

    GO TO STEP 4  .

    Other than the above 

    GO TO STEP 2  .

  2. CHECK HARNESS CONNECTOR

    Check the harness connector.

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Replace harness connector.

  3. CHECK WIRING HARNESS

    Check the wiring harness externals.

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Replace wiring harness.

  4. REPLACE SATELLITE SENSOR

    1. Replace satellite sensor. Refer to REMOVAL AND INSTALLATION .
    2. Perform DTC confirmation procedure. Refer to DTC LOGIC .

    Is DTC detected?

    YES 

    GO TO STEP 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 STEP 1  .

    NO 

    INSPECTION END

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