Kia Rio: Steering Angle Sensor (Except MDPS) Description
The steering angle speed sensor detects the angle of the steering wheel
in order to which direction a user chooses.The sensor is detached on the Mutil-Function
Switch (MPS) under the steering wheel.
Measureing Principle
The split of the steering angle sensor detects a steering angle of the
steering wheel by a ON/OFF pulse caused by whether or not the LED lights go
through the hole of the split, rotating as the steering wheel revolves. There
are three LEDs, two(ST1, ST2) for detecting a steering direction, and the other
for the neutral position.The HECU calculates the steering angle by the pulse
from the steering angle sensor.
Specification
| Description |
Specification |
| Operating voltage |
9 ~ 16 V |
| Operating temperature |
-30 ~ 75 °C |
| Current consumption |
Max.100 mA |
| Steering angle velocity |
Max. ± 1500 °/sec |
| Voltage(high) |
3.0 V ~ 4.1 V |
| Voltage(low) |
1.3 V ~ 2.0 V |
| Pulse duty |
40 ~ 60 % |
Circuit Diagram (Steering Wheel Speed Angle Sensor)
Calibration (Setting up the zero angle)
Steering Wheel Angle Sensor of a absolute angle type (CAN type) measures
the angle under the standard of the zero angle set.
Calibration must be performed as following cases.
| - |
Replacement of the Steering Wheel Angle Speed Sensor
|
| - |
Replacement or repair of the Steering column
|
| - |
Detection of DTC codes (C1260, C1261)
|
| - |
Replacement of the yaw-rate and G sensor
|
| - |
Replacement of HECU
|
Calibration procedure
Perform wheel alignment and stand the steering wheel in a line within
±5°error.
| 1. |
Connect the GDS.(CAN line or OBD connector)
|
| 2. |
Turn ignition switch on.
|
| 3. |
Press calibration button of the Steering Wheel Angle Sensor.
|
| 4. |
HECU calibration procedure is performed.
(Calibration records, DTC codes erasure)
|
| 5. |
Turn ignition switch off after calibration procedure.
|
| 6. |
Confirm success or failure of calibration.
|
Steering Angle Sensor (MDPS Only) Description
The Steering Angle Sensor (SAS) is installed in MDPS (Motor Driven Power
Steering) and it sends messages to HECU through CAN communication line.
The SAS is used to determine turning directio ...
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