KE4 - Check IAC Solenoid For an Internal Short to IAC Case

- Key Off.

- IAC solenoid vehicle harness connector disconnected.

- Measure resistance from either IAC solenoid pin to IAC valve assembly case.

- Is resistance greater than 10,000 ohms?

YES -- GO to KE5. KE5 - Check IAC Circuit Continuity

NO -- REPLACE IAC valve assembly. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes