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Home >> Chevrolet >> 2020 >> Impala Premier >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Diagnostic Information and Procedures >> DTC C027B >> Conditions for Setting the DTC

Conditions for Setting the DTC

DTC C027B 01 

A short to voltage is detected on the control circuit.

DTC C027B 02 

A short to ground or open/high resistance is detected on the control circuit.

DTC C027B 5A 

Defective vacuum pump

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