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Home >> GMC >> 2018 >> Acadia SL >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Diagnostic Information And Procedures >> DTC C025E: Brake Pressure Vacuum Sensor Circuit >> Circuit/System Description

Circuit/System Description

The brake booster vacuum sensor monitors the pressure in the brake booster. The engine control module (ECM) supplies a 5 V reference and a low reference circuit to the brake booster vacuum sensor. The vacuum sensor supplies a voltage signal in relation to the pressure in the brake booster to the ECM.

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