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Home >> Mitsubishi >> 2013 >> Lancer ES, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Active Stability Control System (ASC) - Lancer Evolution) >> Diagnosis >> Diagnostic Trouble Code Procedures >> DTC C121E: Abnormality In Brake Fluid Pressure Sensor Output Signal >> Circuit Operation
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Circuit Operation

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The pressure sensor is incorporated in the hydraulic unit. When the brake pedal is depressed, the pressure sensor detects the brake pressure applied from the master cylinder, converts this pressure into the voltage signal, and then outputs the signal.