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IAC Valve Resistance

Disconnect IAC valve connector. See COMPONENT LOCATIONS  under INTRODUCTION. At IAC valve connector, measure resistance between terminals +B and USC, and between terminals +B and RSO. See Figure. If resistance is not 19.3-22.3 ohms at 68°F (20°C), replace IAC valve. If resistance is as specified, reconnect IAC valve connector. Go to next procedure.