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Home >> Kia >> 2009 >> Rio Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (2 Of 2) >> DTC P0507 Idle Air Control System-Rpm Higher Than Expected >> Control Circuit Inspection
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Control Circuit Inspection

  1. Key "OFF".
  2. Disconnect ISCA connector and Key "ON".
  3. Measure the voltage between terminal 1 of ISCA harness connector and chassis ground.
  4. Measure the voltage between terminal 3 of ISCA harness connector and chassis ground.

    Specification: Approx 1.3V (at terminal 1), Approx 2V (at terminal 3)

    Fig 1: Measuring Voltage Between Terminal 1 Of ISCA Harness Connector And Chassis Ground
    G06130718Courtesy of KIA MOTORS AMERICA, INC.
  5. Is the measured voltage within specification?

    YES 

    NO