Test TC-28C - Idle Air Control Motor Circuits

NOTE: For circuit & connector terminal identification, see CONNECTOR IDENTIFICATION DIRECTORY TABLE . For wiring diagrams, see WIRING DIAGRAMS section. After each repair, perform TEST VER-2 .

Turn ignition off. Disconnect and inspect Powertrain Control Module (PCM) connector. PCM is located under air cleaner. If any terminals are damaged, pushed out or miswired, repair as necessary. If PCM connector is okay, go to next step.
Using DRB in ohmmeter mode, check resistance of PCM connector terminal No. 60 (Yellow/Black wire). If resistance is less than 5 ohms, repair short to ground in Yellow/Black wire. If resistance is more than 5 ohms, replace PCM.