Component Inspection

Component Inspection

Steering Angel Sensor Check
1. Ignition "ON" & Engine "ON".
2. Turn the steering wheel to the left or right.
3. Measure waveform between signal terminal of the steering angle sensor harness connector and chassis ground with oscilloscope.

Specification : Check the voltage range (HIGH : 2.9±0.1V ~ 4.4±0.1V LOW : 1.2±0.1V ~ 2.1±0.1V) of the sensor signal in case of turning left and turning right.
If normal waveforms such as Fig.1, 2are detected in each condition, It is normal.






Normal waveform








Fig.1) Normal waveform of Steering Angle Sensor with turning left after ENGINE "ON"
Fig.2) Normal waveform of Steering Angle Sensor with turning right after ENGINE "ON"
** "LOW" : approx 1.5V, "HIGH" : approx 3.5V.
4. Is the measured waveform within specifications?