Circuit Operation
- The idle air control motor power is supplied from the MFI relay (terminal No. 4).
- The ECM (terminals 4, 5, 17 and 18 - M/T) or PCM (terminals 14, 15, 28 and 29 - A/T) drives the stepper motor by sequentially turning "ON" the power transistors in the ECM (M/T) or PCM (A/T) and providing ground to the idle air control motor (terminals 1, 3, 4 and 6).