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Home >> Hyundai >> 2021 >> Elantra N Line, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Control System Diagnosis - 2.0L (Except HEV) (1 Of 6)) >> Component (Location) And Function >> Component Function >> Brake Booster Vacuum Pressure Sensor >> Notes

Brake Booster Vacuum Pressure Sensor: Notes

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G14609700Courtesy of HYUNDAI MOTOR AMERICA

Brake booster vacuum pressure sensor, installing on the brake booster, detects negative brake booster pressure in order to prevent abnormal braking from lack of negative pressure in brake booster. In case that negative pressure lacks at idle start status, Engine Control Module (ECM) release idle stop function (Engine start) in order to make proper negative pressure. If this DTC is set, No more idle stop functioning.