LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2015 >> QX80 Base, AWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> SRS Airbag Control System >> DTC/Circuit Diagnosis >> DTC B1050: Driver Airbag Module >> Diagnosis Procedure

Diagnosis Procedure

WARNING:
  • Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 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 STEP 2  .

    NO 

    Replace harness connector.

  2. CHECK WIRING HARNESS

    Check the wiring harness externals.

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Replace wiring harness.

  3. REPLACE SPIRAL CABLE

    1. Replace combination switch (spiral cable). Refer to REMOVAL AND INSTALLATION .
    2. Perform DTC confirmation procedure. Refer to DTC LOGIC .

    Is DTC detected?

    YES 

    GO TO STEP 4  .

    NO 

    INSPECTION END

  4. 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 5  .

    NO 

    INSPECTION END

  5. REPLACE DRIVER AIR BAG MODULE

    1. Replace driver air bag module. 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

scientia non olet · About LEMON Manuals