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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1495 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC C0221 To C0227: Front Wheel Speed Sensor Circuit >> Conditions for Setting the DTC >> C0221 and C0225

C0221 and C0225

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 EBCM detects an open or shorted wheel speed sensor or wheel speed sensor circuit for 500 milliseconds.