KE5 - Check IAC Circuit Continuity

- Key Off.

- IAC solenoid disconnected.

- Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.

- Install breakout box, leave PCM disconnected.

- Measure resistance between Test Pin 83 (IAC) at the breakout box and IAC circuit at IAC solenoid vehicle harness connector.

- Is resistance less than 5.0 ohms?

YES -- GO to KE6. KE6 - Check IAC Circuit For Short to PWR

NO -- SERVICE open circuit. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes