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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1490 (Suspension Control System - Suspension Leveling) >> Diagnostic Information and Procedures >> DTC 003 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The Air Suspension Compressor Assembly sends a PWM voltage to the right height sensor at 25ms intervals on the air suspension sensor signal circuit. The Air Suspension Compressor Assembly then measures the return voltage on the air suspension sensor low reference circuit and determine the vehicle height.

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