Checking Idle Air Control Motor

Tests 725 - 728:

Tests 729 - 732:

Tests 733 - 734:

Tests 735 - 737:

SYMPTOM
* CHECKING IAC MOTOR

POSSIBLE CAUSES
- IAC # 1 driver circuit shorted to # 2, # 3, or # 4
- IAC # 2 driver circuit shorted to # 3 or # 4
- IAC # 3 driver circuit shorted to # 4
- Idle air control motor defective
- Throttle body restricted