Test NS-7C - Inspecting Idle Air Control Motor Operation
WARNING: This page is about a different car, the 1995 Dodge Pickup and 1995 Dodge Cab & Chassis. 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.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Inspect connectors for damaged, pushed-out or miswired terminals. Repair as required. Perform TEST VER-1. If PCM terminals are okay, go to next step.
- Using an external ohmmeter, check resistance of driver No. 1 circuit (Brown/White wire) between IAC motor connector and PCM connector terminal No. 40. If resistance is more than 5 ohms, repair open Brown/White wire. Perform TEST VER-1.
- If resistance is less than 5 ohms, reconnect PCM connector. Connect IAC motor connector to a known-good IAC motor. Turn ignition on. Using scan tool, actuate IAC motor. If IAC motor pintle moves in and out, replace original IAC motor. Perform TEST VER-1. If IAC motor pintle does not move in and out, replace PCM. Perform TEST VER-1.