The pressure sensor, installed in the HECU, converts the brake pressure to judge the driver's brake intention when the ESP program is operated. When pressure is applied to the sensor, the resistance of the sensor's strain gauge changes. The change in resistence changes the voltage output from the sensor.
A failure is detected if the output signal voltage of the pressure sensor is out of specified range.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Voltage Monitoring | 1. Open or short of pressure sensor circuit 2. Faulty pressure sensor |
Enable Conditions |
•
The output signal voltage of the pressure sensor is out of the specified range. - The monitoring starts 1sec after power up. | |
Fail Safe |
•
Inhibit the ESP/DBC control and allow the ABS/EBD control.
•
The ESP/DBC warning lamp is activated. |
