By-Pass Air Control Valve (Legacy & SVX)

Turn ignition off. Disconnect By-Pass Air Control Valve (BACV) harness connector. Connect ohmmeter leads between terminals No. 1 (White wire) and 2 (Yellow/Red wire). Resistance should be 9 ohms. Measure resistance between terminals No. 2 (Yellow/Red wire) and 3 (Black wire). Resistance should be 9 ohms. If BACV resistance is not as specified, replace BACV. See TESTS W/CODES article in this section for more detailed test procedures.