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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 905 (Rear Axle Controls) >> Diagnostic Information and Procedures >> Differential Lock Indicator Inoperative >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

The AWD Disable indicator lamp is located in the instrument cluster. Ignition 1 voltage is supplied to the I PC when the ignition switch is in the START or RUN position. When the PCM receives a signal from the differential clutch pump actuator check valve indicating an overtemp condition or a signal from the ABS controller indicating a speed differential between wheels, the AWD system will be disabled. The PCM will then send a class 2 signal to the instrument cluster turning on the AWD Disable indicator.

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