Check Transfer Case Shift Motor

"Ford provides additional testing for the transfer case shift motor, refer to: Control Module Circuits : Control Module Circuits (Includes Shift Motor Circuit Testing) for additional test information (Ohmmeter Readings Fro Shift Motor)" Control Module Circuits (Includes Shift Motor Circut Testing)

Electronic Shift Transfer Case Schematic:

1. To check if the Transfer Case Shift Motor is actually functioning (because it may be hard to hear it in a noisy shop) attach a voltmeter to A4 and A5.
2. Have someone activate a shift and look for a brief (one second) increase in voltage, and listen for the relay to click ON, then OFF.
3. If there is power present, then the Control Module is trying to run the Motor. At this point, unbolt the motor and have someone activate a shift again.
4. If the motor doesn't actually turn, it is malfunctioning and must be replaced.
5. If there is no power to the Motor, check both the POWER CIRCUITS again and the SENSORS.
6. If there is incorrect sensor data, the Module won't power the Motor.