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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 604 (Anti-Lock Brake System) >> Diagnostic Information and Procedures >> DTC C0221: Right Front Wheel Speed Sensor Circuit Open; C0222: Right Front Wheel Speed Signal Missing; C0223: Right Front Wheel Speed Signal Erratic; C0225: Left Front Wheel Speed Sensor Circuit Open; C0226: Left Front Wheel Speed Signal Missing; C0227: Left Front Wheel Speed Signal Erratic >> Conditions for Running the DTC

Conditions for Running the DTC

WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

C0221 and C0225 

The ignition is ON.

C0222, C0223, C0226 and C0227 

The vehicle speed is greater than 32 km/h (20 mph) when the brake is applied or 19 km/h (12 mph) when the brake is released.

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