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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Transfer Case - Four-Wheel Drive (4WD) System - Diagnostics) >> Diagnosis And Testing >> Four Wheel Drive (4WD) Systems >> Heat Protection Mode

Heat Protection Mode

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During very extreme off-road operation, the All-Wheel Drive (AWD) system utilizes a heat protection mode to protect the Active Torque Coupling (ATC) solenoid (part of rear axle) from damage. If the system detects an overheat condition, it enters a locked mode. If the heat in the system continues to rise once in the locked mode, the 4X4 control module disables the ATC  solenoid. This condition may be indicated by an AWD  OFF message in the message center. Allow the system to cool down at least 10 minutes with the ignition switch in the ON position.