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Home >> Buick >> 2009 >> Allure CX >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC C0121 >> Circuit/System Verification

Circuit/System Verification

Clear the DTC. Cycle the ignition OFF and ON. Operate the vehicle. Verify that DTC C0121 does not reset.

If DTC C0121 resets, replace the EBCM.

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