Checking Idle Air Control Motor
Tests 1471 - 1474:
Tests 1475 - 1478:
Tests 1479 - 1482:
Tests 1483 - 1486:
Tests 1487 - 1490:
Tests 1491 - 1493:
SYMPTOM
* CHECKING IDLE AIR CONTROL MOTOR
POSSIBLE CAUSES
- IAC motor #1 driver circuit open
- IAC motor #2 driver circuit open
- IAC motor #3 driver circuit open
- IAC motor #4 driver circuit open
- PCM conn terminals damaged, pushed out, miswired
- PCM conn terminals damaged, pushed out, miswired
- PCM conn terminals damaged, pushed out, miswired
- PCM connector terminals damaged, push out, miswired
- IAC motor defective
- Throttle body restricted
- IAC motor driver circuit #3 shorted to #4
- Powertrain control module defective (IAC motor circuit)
- Powertrain control module defective (IAC motor circuit)
- Powertrain control module defective (IAC motor circuit)
- Powertrain control module defective (IAC motor circuit)
- IAC motor driver circuit #1 shorted to other circuits
- IAC motor driver circuit #2 shorted to other circuits