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Home >> Hyundai >> 2011 >> Sonata GLS, Automatic >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag Diagnosis (Event #2) - Except HEV >> DTC B2502: Passenger Airbag Telltale Lamp Failure >> Inspection/Repair >> W/Harness Inspection >> Telltale lamp Circuit Inspection

Telltale lamp 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 Telltale lamp terminal of the SRSCM harness connector and chassis ground.

    Specification  : Batt Voltage

    Fig 1: Measuring Voltage Between Telltale Lamp Terminal Of SRSCM Harness Connector And Chassis Ground
    G07367328Courtesy of HYUNDAI MOTOR AMERICA
  6. Is the measured voltage within specifications?

    YES 

    • Check telltale 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, passenger compartment junction block, harness between junction block and SRSCM. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.