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Home >> Chevrolet >> 2011 >> Suburban C2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Transfer Case - Mp 3010-NP0) >> Diagnostic Information and Procedures >> DTC C0397 >> Circuit/System Description

Circuit/System Description

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In 4WD Auto mode, the transfer case shift control module (TCCM) monitors the front and rear wheel speed sensors for slip. If the TCCM detects slip, and is unable to correct for a difference between the front and rear speed sensors, it will command the transfer case to apply the clutch.

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