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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls - Tests W/Codes - 3.3L) >> No-Start Tests >> Test NS-7A - Inspecting Idle Air Control Motor Operation

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

WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For circuit & connector terminal identification, see CONNECTOR IDENTIFICATION DIRECTORY . For wiring diagrams, see WIRING DIAGRAMS  section. After each repair, perform TEST VER-1 .
  1. Disconnect Idle Air Control (IAC) motor connector. Turn ignition on. Using DRB, actuate IAC motor. Using DRB in voltmeter mode, check voltage on IAC motor connector terminal No. 1 (Gray/Red wire). If voltage is less than one volt, go to TEST NS-7B . If voltage is more than one volt, go to next step.
  2. Check voltage on IAC motor connector terminal No. 3 (Brown/White wire). If voltage is less than one volt, go to TEST NS-7C . If voltage is more than one volt, go to next step.
  3. Check voltage on IAC motor connector terminal No. 4 (Violet/Black wire). If voltage is less than one volt, go to TEST NS-7D . If voltage is more than one volt, go to next step.
  4. Check voltage on IAC motor connector terminal No. 2 (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. Go to next step.
  5. Remove IAC motor from throttle body. Reconnect IAC motor connector. Using DRB, actuate IAC motor connector. 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.
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