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Home >> Chevrolet >> 2005 >> Corvette 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 169 (Antilock Brake System And Traction Control System) >> Diagnostic Information And Procedures >> DTC C0121 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

The antilock brake system (ABS) control module uses a relay to control the valve solenoids. When the ignition is in the Run position, the module energizes the relay winding to switch the battery voltage that supplies the solenoids. The module will disable the relay when the ignition is OFF, or a fault is detected.

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