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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 >> Signal Circuit Inspection
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Signal Circuit Inspection

  1. Ignition "OFF".
  2. Refer to RAIL PRESSURE SENSOR (RPS) and disconnect Fuel Rail Pressure Sensor (RPS) joint connector.
  3. Ignition "ON"
  4. Measure voltage between Pin No. 10 (Signal) terminal of Fuel Rail Pressure Sensor (RPS) joint connector and chassis ground.

    Specification:  Approx. 5V

  5. Is measured value within specification?

    YES 

    NO