Display Group 18, Field 3, IAC Valve Current Regulation

Value should be displayed in percent, ranging from -40 to +60. Positive (+) values indicate an increase in actual duty cycle to achieve specified current value. Negative (-) values indicate a decrease in actual duty cycle to achieve specified current value. A value greater than +60 (such as +65) indicates circuit resistance, possibly due to overheated IAC valve. A value greater than -40 (such as -45) indicates a short circuit exists, possibly in IAC valve windings.