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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag (Event #1) System Diagnosis (Except HEV) >> DTC B1712-00: Knee Airbag - Driver Resistance Too Low >> Wiring 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 KAB connector and SRSCM main harness connector.
    WARNING: Lay Removed KAB facing upward for unexpected air bag deploy.
  4. Measure resistance between terminal "Low" and "High" of the KAB harness connector.

    Specification:  approx. below 1Ω

  5. Is the measured resistance within specifications?

    YES 

    • Substitute a known-good SRSCM, and check for proper operation.

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

    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.