Test TC-25E - Idle Air Control Motor Circuits

Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Inspect PCM connector for damaged or pushed out terminals. Repair as necessary. Perform TEST VER-2A. If PCM connector terminals are okay, go to next step.
NOTE: For next step, see the IAC DRIVER IDENTIFICATION table for IAC motor wire color identification.
Using an external ohmmeter, check resistance of IAC motor driver No. 4 wire between IAC motor connector and PCM connector terminal No. 58 (Yellow/Blue wire). If resistance is 5 ohms or more, repair open in IAC motor driver No. 4 wire. Perform TEST VER-2A. If resistance is less than 5 ohms, replace PCM. Perform TEST VER-2A.