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Home >> Hyundai >> 2011 >> Sonata GLS, Automatic >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag Diagnosis (Event #2) - Except HEV >> DTC B1513: Buckle Switch Passenger open or short to Battery >> Inspection/Repair >> W/Harness Inspection >> Main harness Circuit Inspection

Main harness Circuit Inspection

  1. Ignition "OFF".
  2. Disconnect the battery (-) terminal cable from the battery, and wait at least one minutes.
  3. Disconnect Seat-belt Buckle Switch connector and SRSCM main harness connector.
  4. Measure resistance between of the Buckle Switch Passenger wiring connector and SRSCM harness connector.

    Specification  : approx. 1 Ω below

    Fig 1: Measuring Resistance Between Of Buckle Switch Passenger Wiring Connector And SRSCM Harness Connector
    G07367175Courtesy of HYUNDAI MOTOR AMERICA
  5. Is the measured resistance within specifications?

    YES 

    NO 

    • Substitute the SRSCM main harness and check for proper operation.

      If the problem is corrected, replace SRSCM main harness and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.



  1. Ignition "OFF".
  2. Disconnect the battery (-) terminal cable from the battery, and wait at least one minutes.
  3. Disconnect Seat-belt Buckle Switch connector and SRSCM main harness connector.
  4. Connect the battery (-) terminal cable to the battery and Ignition "ON" & Engine "OFF".
  5. Measure voltage between terminal "High" of the Seat-belt Buckle Switch harness connector and chassis ground.

    Specification  : 0V

    Fig 1: Measuring Voltage Between Terminal High Of Seat-Belt Buckle Switch Harness Connector And Chassis Ground
    G07367176Courtesy of HYUNDAI MOTOR AMERICA
  6. Is the measured resistance within specifications?

    YES 

    NO 

    • Substitute the SRSCM main harness and check for proper operation.

      If the problem is corrected, replace SRSCM main harness and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.