DTC P1506 & DTC P1508 Kia Rio I рестайлинг

Code Definition

1. DTC P1506: Idle Air Control Valve Opening Coil Signal High Input
2. DTC P1508: Idle Air Control Valve Closing Coil Signal High Input

Note. Before performing any diagnostic test, refer toWARNINGS, CAUTIONS and NOTES in DIAGNOSTIC TESTS .

Note. Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohmmeter Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.

Diagnostic Aids

Malfunction code will set when engine actual idle speed is 120 RPM or more, lower than target idle speed for 10 seconds. Check for following possible problems

1. Short between Engine Control Module (ECM) and IAC valve.
2. Faulty IAC valve.