Test NS-7A - Inspecting Idle Air Control Motor Operation
WARNING: This page is about a different car, the 1994 Plymouth Acclaim and 1994 Dodge Spirit. 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 DIRECTORY TABLE
. For wiring diagrams, see WIRING DIAGRAMS
.
- Disconnect Idle Air Control (IAC) motor connector. Turn ignition on. Using DRB, actuate IAC motor. Put DRB in voltmeter mode. Using DRB, check voltage on IAC motor connector Gray/Red wire. If voltage is less than one volt, go to TEST NS-7B.
- If voltage is more than one volt, check voltage on IAC motor connector Brown/White wire. If voltage is less than one volt, go to TEST NS-7C . If voltage is more than one volt, check voltage on IAC motor connector Violet/Black wire. If voltage is less than one volt, go to TEST NS-7D .
- If voltage is more than one volt, check voltage on IAC motor connector Yellow/Black wire. If voltage is less than one volt, go to TEST NS-7E . If voltage is more than one volt, turn ignition off.
- Remove IAC motor from throttle body. Reconnect IAC motor connector. Using DRB, actuate IAC motor. If IAC motor tip moves in and out, go to TEST NS-8A . If IAC motor tip does not move in and out, replace IAC motor. Perform TEST VER-1 .