Steering Wheel Angle Sensor installed in steering wheel prevents a state of TCB(Tight Corner Braking) by sensing the rotating direction & straight driving of vehicle and is used for EMC duty control. In case of ESP system applied, 4WD ECU receives this signal through CAN line. If it is not the case, 4WD ECU receives this signal from Steering Wheel Angle Sensor directly.
※ TCB (Tight Corner Braking) : TCB is that the vehicle makes an abnormal noise and hesistation when the vehicle turns left / right fully with low speed at a paved road.
This code related to Steering Angle Sensor Signal( #2) is set when voltage of signal is above 4.5V or loss of signal is occurred for more than 1sec. In case of ESP system applied, this code is set when can bus off or ecu enternal error is occurred.
If failure is detected TCCU prohibits the ITM control and cuts the current to control coil.
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● Loss of signal out of range | ● Steering angle sensor,TCCU connector looseness and poor terminal to wire connection. ● Steering angle sensor circuit open/short. ● Faulty Steering angle sensor . ● Faulty TCCU . |
Enable Conditions | ● V<4.5 for 1.0 sec self clearing | |
Threshold Value | ● Out of Range signal: Voltage >= 4.5vdc for greater than one (1) second | |
Diagnostic Time | ● 1 sec | |
MIL on condition | ● 0.5 Sec. | |
Fail Safe | ● Steering Wheel Sensor input=0. The ECU will not send current to the clutch coil. |
