On-Vehicle Inspection

ON-VEHICLE INSPECTION

1. Inspect IAC valve for operating sound.





- Check that there is a clicking sound immediately after stopping the engine.
- If operation is not as specified, check the IAC valve, wiring and ECM.
2. Inspect IAC valve resistance.

NOTICE: "Cold" and "Hot" in these sentences express the temperature of the coils themselves.
"Cold" is from -10°C (14°F) to 50°C (122°F) and
"Hot" is from 50°C (122°F) to 100°C (212°F).





- Using an ohmmeter, measure the resistance between the terminals (B1 (or B2) to others).

Resistance:
Cold: 15 - 25 Ohms
Hot: 20 - 30 Ohms

- If resistance is not as specified, replace the AC valve.