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Home › Kia › 2007 › Rio Base, Automatic › Repair and Diagnosis › Engine Performance › System › DTC Troubleshooting Procedures (1 Of 2) › DTC P0230 Fuel Pump Primary Circuit › Component Inspection

Component Inspection

  1. Fuel pump relay check.
    1. Key "OFF".
    2. Disconnect fuel pump relay.
    3. Measure the resistance between terminal 30 and 87 of fuel pump relay component side.
    4. Measure the resistance between terminal 85 and 86 of fuel pump relay component side.
      RESISTANCE SPECIFICATION

      Terminal Continuity
      30~87 NO
      85~86 YES (70~120Ω)
      Fig 1: Measuring Resistance Between Terminal 85 And 86 Of Fuel Pump Relay
      G04862189Courtesy of KIA MOTORS AMERICA, INC.
    5. Is the measured resistance within specification?

      YES 

      • Substitute with a known - good ECM/PCM and check for proper operation.
      • If the problem is corrected, replace ECM/PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by ECM/PCM.
      Before or after testing ECM/PCM on the vehicle, use this function to reuse the ECM/PCM

      NO 

      • Substitute with a known - good Fuel pump relay and check for proper operation.
      • If the problem is corrected, replace Fuel pump relay and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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