General Information

ESP (CTC)
C1353 Pressure sensor (Wh1) - electrical - General Information

Component Location





General Description

The pressure sensor is installed in the HECU (Hydraulic and Electronic Control Unit) in the purpose of sensing the driver's braking intention. This sensor has two circuit to measure the current pressure and one circuit to measure the brake oil's temperature. The HECU (Hydraulic and Electronic Control Unit) compares two signals of the pressure sensor and if it differs with normal range, the HECU (Hydraulic and Electronic Control Unit) would judge that the pressure sensor has a fault. The sensor's output is a analog signal to be proportional to the supply voltage. The HECU (Hydraulic and Electronic Control Unit) measures the pressure value by the ratio of signal voltage to supply voltage. In a case of SCC (Smart Cruise Control) system applied, the two more pressure sensors is added to measure the brake oil's pressure of wheel.

DTC Description

The HECU monitors the signal of pressure sensor which is used for measuring the break oil's pressure of the first wheel and if the signal is out of the normal range, this DTC is set.

DTC Detecting Condition