Test NS-7D: Idle Air Control Motor Circuits
NOTE:
This test applies to AB, AN and DN bodies only. Perform TEST NS-7A: CHECKING IDLE AIR CONTROL MOTOR before proceeding. For connector terminal identification, see CONNECTOR IDENTIFICATION . For component location and wiring diagram, see WIRING DIAGRAMS article.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connectors. Inspect connectors and terminals for damage. Repair connectors and terminals as necessary and perform TEST VER-1A: NO START VERIFICATION . If connector and terminals are okay, go to next step.
- Using an external ohmmeter, check resistance of IAC motor connector, driver No. 4 circuit (Violet/Black wire) between IAC motor connector and PCM Black connector. If resistance is less than 5 ohms, replace PCM and perform TEST VER-1A: NO START VERIFICATION . If resistance is 5 ohms or more, repair open driver No. 4 circuit and perform TEST VER-1A: NO START VERIFICATION .