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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Engine Controls - Tests W/Codes - 3.8L) >> No-Start Tests >> Test NS-7B - Inspecting Idle Air Control Motor Operation

Test NS-7B - Inspecting Idle Air Control Motor Operation

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAMS  section at the end of this article.
  1. Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Inspect all terminals. Repair as required. Perform TEST VER-1. If PCM terminals are okay, go to next step.
  2. Using an external ohmmeter, check resistance of driver No. 3 circuit (Gray/Red wire) between IAC motor connector and PCM connector terminal No. 39. If resistance is less than 5 ohms, replace PCM. Perform TEST VER-1. If resistance is more than 5 ohms, repair open Gray/Red wire. Perform TEST VER-1.
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