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Home >> Hyundai >> 2006 >> Accent Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC Troubleshooting Procedures >> 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 2V (at terminal 1), Approx 1.3V (at terminal 3)

  5. Is the measured voltage within specification?

    YES  : --> Go to "SYSTEM INSPECTION " procedure.

    NO  : --> Repair Open or Short in control circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.

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