Ranger 4WD V6-177 2.9L (1988)
1.
Connect an ohmmeter between terminals one and two, then DEPRESS 4x4 (2H-4H) switch. Ohmmeter should indicate less than 50 ohms of
resistance while switch is being depressed.
2.
Connect ohmmeter between terminals one and three, then DEPRESS low range switch. Ohmmeter should indicate less than 50 ohms of resistance
while switch is being depressed.
3.
Connect a test lead between terminals 4 and ground, then turn ignition switch to RUN position and observe indicator lights. Light in instrument
panel and low range bar should illuminate.
4.
Connect a test lead between terminal 5 and ground, then turn ignition switch to RUN and observe indicator lights. Lights in instrument panel and
4x4 bar should illuminate.
