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Home >> GMC >> 2001 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Electronic Suspension - Suspension Damping & Automatic Level Control >> Diagnostic Information and Procedures >> DTC C0551 >> Circuit Description

Circuit Description

The suspension control module performs internal checks on the software (calibrations) contained in the EEPROM to ensure valid operation.

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