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Home >> Hyundai >> 2014 >> Genesis 3.8 >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag (Event #1) System Diagnosis - 3.8L (2 Of 2) >> DTC B2500: Warning lamp Failure >> W/Harness Inspection >> Inspection/Repair >> 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 SRSCM main harness connector.
  4. Connect the battery (-) terminal cable to the battery and Ignition "ON" & Engine "OFF".
  5. Measure voltage between Air bag warning lamp terminal of the SRSCM harness connector and chassis ground.

    Specification  : Approx. Batt Voltage

    Fig 1: Measuring Voltage Between Air Bag Warning Lamp Terminal Of SRSCM Harness Connector And Chassis Ground
    G08835573Courtesy of HYUNDAI MOTOR AMERICA
  6. Is the measured resistance within specifications?

    YES 

    • Check warning lamp and connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Check airbag fuse, junction block, Warning Lamp, harness between junction block and SRSCM. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.