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Home >> GMC >> 2001 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Electronic Suspension - Suspension Damping & Automatic Level Control >> Diagnostic Information and Procedures >> DTC C0551 >> Diagnostic Aids

Diagnostic Aids

IMPORTANT:

Calibrate the suspension control module twice before replacement and cycle the ignition off and on to see if the DTC C0551 resets.

The replacement suspension control module must be calibrated when replacement is necessary.