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Home >> Kia >> 2018 >> Optima SX >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System Diagnosis (2 Of 2) (Except HEV) >> DTC B1742-00: P-SIS (Side Impact Sensor, Pressure) Front-Driver Communication Error >> 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 minute.
  3. Disconnect Pressure Side Impact Sensor-Driver connector and SRSCM main harness connector.
  4. Measure resistance between Pin No. 1 (High) terminal of Pressure Side Impact Sensor-Driver harness connector and chassis ground.
  5. Measure resistance between Pin No. 2 (Low) terminal of Pressure Side Impact Sensor-Driver harness connector and chassis ground.

    Specification:  ∞ (Infinite)Ω

    Fig 1: Screen Display - KDS/GDS Multimeter Resistance Check
    G12133893Courtesy of KIA MOTORS AMERICA, INC.
  6. Is the measured resistance within specifications?

    YES 

    NO 

    • Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Carefully re-do this troubleshooting guide steps.
    • If problem still occurs, replace SRSCM main harness and then go to "Verification of Vehicle Repair " procedure.