General Information

Component Location





General Description

Wheel Speed Sensor senses vehicle speed and difference between front and rear wheel speed.
Operation for getting Rotating Speeds of front/rear wheel can be got from Dividing wheel speed sensor Rotating Speeds of front/rear by 2.
In case of ESP (or FTCS) system applied 4WD ECU receives this signal through CAN line, If it is not the case 4WD ECU receives this signal directly by using PWM communication line.
The wheel speed sensor is the essential component the ITM ECU uses to determine how to distribute driving force to front / rear wheel with steering angle sensor signal and TPS, brake signal.






DTC Description

This code related to communication line between ECU and TCCU is set when CAN signal from ECU can't received for more than 1 sec or ECU internal error occur.
If failure is detected TCCU prohibits the ITM control and cuts the current to control coil.

DTC Detecting Condition





Schematic Diagram





Signal Waveform & Data




FIG. 1) CAN Signal : high & low