Test TC-12E - Idle Air Control Motor Circuits

1994 Plymouth Grand Voyager Base, 31THSECTION Test TC-12E - Idle Air Control Motor Circuits
NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATIONΒ  in this article. For wiring diagrams, see WIRING DIAGRAMSΒ  section.
  1. Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Inspect PCM connector for damaged or pushed out terminals. Repair as necessary. Perform TEST VER-2Β  . If PCM connector terminals are okay, go to next step.
  2. Using an external ohmmeter, check resistance of Violet/Black wire between IAC motor connector and PCM connector terminal No. 59. If resistance is more than 5 ohms, repair open in Violet/Black wire. Perform TEST VER-2. If resistance is less than 5 ohms, replace PCM. Perform TEST VER-2.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.