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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 630 (Electronic Suspension System - Automatic Level Control) >> Diagnostic Information And Procedures >> DTC C0663: Level Control Exhaust Valve Circuit High >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The automatic level control (ALC) adjusts the vehicle suspension ride height. The RIM determines the height of the vehicle based on the voltage from the suspension position sensor. The RIM raises and lowers the vehicle in order to keep the vehicle level.

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