Rio Cinco L4-1.6L DOHC 16V (2003)
Since teeth of sensor rotor change magnetic field of sensor, it generates alternative voltage. This voltage is proportional to rotating speed and its
period can be changed. It can sense speed of wheel by detecting period.
WARNING LAMP
1. ABS warning lamp
1) It is turned on for three seconds at time of ON of ignition Key and turns off afterwards.
2) It is extinguished at start of operation.
3) It is lighted if system abnormality arise.
4) It is lighted during self-diagnosis.
5) During its lighting, ABS control is interrupted and only ordinary brake operates in same way as ABS, TCS non-installed vehicle.
6) It is lighted when ECU connector is removed.
2. Electronic Brake-force Distribution (EBD) warning lamp
1) It is lighted at time of ON of ignition Key.
2) It is extinguished at start of operation.
3) It is lighted when parking brake switch is ON.
4) It is lighted when brake oil is deficient.
5) It is lighted when EBD control is infeasible.
^
When there is trouble at solenoid valve.
^
When there is trouble in more than one sensor.
^
When there is trouble in ECU.
^
In case of high voltage.
HYDRAULIC CONTROL UNIT (HCU)
The HCU consists of a motor pump assembly in which motor sensor is built, and valve block for controlling ABS pressure.
Motor sensor is built in motor, and output signal, which detects condition of a motor pump assembly, is sent to HECU (for ABS).
Reference
