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Home >> Ford >> 2021 >> Edge ST-Line, FWD >> Repair and Diagnosis (Single Page) >> External Pages >> Different variant/trim >> Section 1 (Four-Wheel Drive Systems) >> Description And Operation >> Four-Wheel Drive Systems - System Operation and Component Description >> Heat Protection - Rear Drive Unit (RDU)
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Heat Protection - Rear Drive Unit (RDU)

WARNING: This page is about a different variant/trim than selected.

During aggressive on road driving, the AWD system may implement a heat protection mode to protect the RDU clutch from damage due to overheating. On variants not fitted with power transfer unit or RDU temperature sensors, the AWD module performs calculations to determine the need for the heat protection mode. If the AWD system detects an overheat condition, it enters a locked mode. If the heat in the RDU continues to rise once in the locked mode, the AWD module disables the torque commands to RDU. This condition may be indicated by an AWD Temporarily Disabled message in the message center. To resume normal operation, stop the vehicle in a safe location and turn the engine off for at least 10 minutes. After the engine is restarted and the AWD system has adequately cooled down, the AWD Temporarily Disabled message turns off and normal AWD operation returns. In the event the engine is turned off during the stop, the AWD Temporarily Disabled message turns off when the system cools. Normal AWD operation returns once the message center displays AWD Restored.