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Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Four-Wheel Drive Systems) >> Diagnosis And Testing >> Four-Wheel Drive Systems >> Pinpoint Test G: Vehicle Has No Or Inadequate Torque At Rear Wheels >> Normal Operation

Normal Operation

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The on-demand 4WD system uses data from other systems as inputs to the 4WD control module. The 4WD control module uses the inputs to determine the appropriate duty cycle to send to the active torque coupling that delivers the desired torque to the rear wheels. If the 4WD control module loses communication with, or receives invalid data from any of the necessary modules, DTCs are set and the 4WD control module may not allow 4WD operation.

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