Checking Idle Air Control Motor
NOTE:
For connector terminal ID, see CONNECTOR IDENTIFICATION. For wiring diagram, see WIRING DIAGRAMS - 3.5L
article in ENGINE PERFORMANCE. After each repair, perform TEST VER-2
.
Turn engine off. Disconnect Powertrain Control Module (PCM) connector. PCM is located under air cleaner. Using an external ohmmeter, check resistance on each wire between Idle Air Control (IAC) motor connector and PCM connector. See PCM TERMINAL IDENTIFICATION table. If resistance for any wire is more than 10 ohms, repair open as necessary. If resistance for all wire is less than 10 ohms, replace PCM.
PCM TERMINAL IDENTIFICATION
| Wire Color | Terminal No. |
|---|---|
| Gray/Red | 39 |
| Brown/White | 40 |
| Violet/Black | 59 |
| Yellow/Black | 60 |