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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 350 (Rear Drive Axle) >> Diagnostic Information and Procedures >> DTC C1244, C1245, or C124B: AWD Oil Pump Motor Speed Sensor >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

The rear differential clutch control module monitors the speed of the AWD oil pump motor by using a hall effect sensor which is internal to the differential clutch pump. The sensor is a transducer that varies its output voltage in response to a magnetic field.

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