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Home >> Kia >> 2019 >> Optima S >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 2.4L (5 Of 6) (Except HEV) >> DTC P1233-00: Low Pressure Fuel System - High Deviation Between Target And Current Pressure >> Wiring Inspection >> Fuel Pump Control Module Circuit Inspection >> Ground Circuit Inspection
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Ground Circuit Inspection

  1. Ignition "OFF"
  2. Disconnect Battery (-) terminal.
  3. Refer to "FUEL PUMP CONTROL MODULE (FPCM) " and disconnect Fuel Control Module connector.
  4. Measure resistance between Pin No. 9 (Ground) terminal of Fuel Control Module harness connector and chassis ground.

    Specification:  Approx. below 1Ω

  5. Is measured value within specification?

    YES 

    NO