KE3 - Check For Other DTCs

- Are Diagnostic Trouble Codes (DTC) 126, 136, 137, 172 or 173 present?

Yes -- Reconnect Idle Air Control (IAC) solenoid. Return to Diagnostic Trouble Code (DTC) Charts for appropriate Pinpoint Test. Manufacturer Code Charts


No -- Go to KE4. KE4 - Measure IAC Solenoid Resistance