Steering angle sensor is a hole plate between the photo-controller LED and the photo transistor. As the hole plate rotates during steering wheel rotation, an electrical signal will be generated depending on whether the LED light passes through the plate to the photo-transistor or not. The signal determines steering wheel operating angular velocity and detects rotating direction of steering wheel(right or left)
This failure code is related to the Steering angle sensor #1 and is set if input signal to TCCU is "Loss of signal out of range".
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 | ● >=4.5VDC | |
Diagnostic Time | ● 1 sec | |
MIL on condition | ● 0.5 Sec. | |
Fail Safe |
