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Message: <blockquote data-quote="TriHonu" data-source="post: 81063" data-attributes="member: 897"><p>There are 2 coils in the traction lock solenoid. The black is ground, white feeds the pull coil and red powers the hold coil. To unlock the traction lock, the white wire gets power for a second or two to retract the stem. The red wire continues to power the hold coil to keep the stem retracted. When the red wire stops supplying power, a spring extends the stem that has a wedge on the end. The wedge engages a toothed hub attached to the axles. With the solenoid unplugged from the harness, measure the resistance from white to black it should be .4 - .5 ohms. The resistance from red to black should be around 10.5 - 11 ohms. From red to white should be open.</p></blockquote><p></p>