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Home >> Kia >> 2017 >> Optima SX >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake Diagnosis (Except HEV) >> DTC C1203-01: Wheel Speed Sensor Front-RH Open/Short >> Component Inspection

Component Inspection

  1. Ignition switch "OFF"
  2. Disconnect battery (-) cable.
  3. Refer to FRONT WHEEL SPEED SENSOR and remove wheel speed sensor.
  4. Measure the resistance between Pin No. 2 (Power) terminal and Pin No. 1 (Signal) terminal of wheel speed sensor.

    Specification:  Approx. 467.9 kΩ (68°F/20°C)

    Fig 1: Screen Display - Wheel Speed Sensor Resistance Value
    G12137242Courtesy of KIA MOTORS AMERICA, INC.
  5. Is the measured value within specification?

    YES 

    • Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "Verification of Vehicle Repair " procedure.

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, replace wheel speed sensor front-RH and then go to "Verification of Vehicle Repair " procedure.