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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1185 (Suspension Control System - Suspension Damping) >> Diagnostic Information and Procedures >> DTC C0550: ECU Malfunction - Internal Write/Checksum Malfunction >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 2. This DTC requires ESC module replacement.
    Fig 1: Diagnostic System Check - DTC C0550
    G01419579Courtesy of GENERAL MOTORS CORP.