Idle Control Inspection

1. Start the engine and run at idle.
2. Disconnect the IAC valve connector and verify if the engine speed drops or engine stalls.
3. If engine speed does not drop or does not stall, check following.
- IAC valve.
- IAC valve air passage.
- Open or short circuit between IAC valve and PCM.

4. Warm up the engine to normal operating temperature and run it at idle.




5. Turn the electrical loads ON and verify the engine speed is within the specification.

NOTE: Excludes temporary idle speed drop immediately after the electrical loads are turned ON.

6. If not as specified, check the related switches and wiring harnesses.