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Home >> Chevrolet >> 2019 >> Spark ACTIV, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 166 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC C0121 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, command the ABS Solenoid Valves On and Off with the scan tool. The solenoid valves should turn ON and OFF.

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