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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) (PHEV) >> DTC P064A-00: Fuel Pump Control Module >> Wiring Inspection >> Fuel Rail Pressure Sensor Circuit Inspection >> Ground Circuit Inspection
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Ground Circuit Inspection

  1. Ignition "OFF".
  2. Disconnect Battery (-) terminal.
  3. Refer to RAIL PRESSURE SENSOR (RPS) and disconnect Fuel Rail Pressure Sensor (RPS) joint connector.
  4. Measure resistance between Pin No. 11 (Ground) terminal of Fuel Rail Pressure Sensor (RPS) joint connector and chassis ground.

    Specification:  Approx. below 1Ω

  5. Is measured value within specification?

    YES 

    • Go to "Signal Circuit Inspection" procedure below.

    NO 

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