Kia Sedona (2008 year). Instruction — part 386

Courtesy of KIA MOTORS AMERICA, INC.

2. Check the continuity between the switch terminals as the ESC OFF switch is engaged.

Fig. 25: Testing ESC OFF Switch
Courtesy of KIA MOTORS AMERICA, INC.

STEERING WHEEL ANGLE SPEED SENSOR

DESCRIPTION

GENERAL DATA

The steering angle speed sensor detects the angle of the steering wheel in order to which direction a user
chooses.

MEASURING PRINCIPLE

A non contact, analog angle sensor carrying out absolute measuring by the use of the Anisotropic-Magneto-
Resistive effect (AMR). Measuring of the absolute angle b means of a toothed measuring gear with magnetic
properties in combination with different ratios. Corresponding AMR elements that change their electrical
resistance according to the magnetic field direction detect the angle position of the measuring gears. A micro-
controller decode: the measured voltage signals after A/D converting with the help of a mathematical function.
Output of the digital angle value and velocity via CAN-interface.

SPECIFICATION

SPECIFICATION

Description

Specification

Operating voltage

8-16 V

Operating temperature

-40-85 °C

Current consumption

Max. 150 mA

Steering angle velocity

Max. ±2000 °/sec

Connection delay time

t < 200 ms

Reverse voltage

-13.5 V

Measuring range

Angle

-780 °-779 °

2008 Kia Sedona

2008 BRAKES ESP (Electronic Stability Program) - Sedona

Microsoft

Saturday, May 22, 2010 6:53:50 PM

Page 22

© 2006 Mitchell Repair Information Company, LLC.

CIRCUIT DIAGRAM (STEERING WHEEL SPEED ANGLE SENSOR)

Fig. 26: Steering Wheel Speed Angle Sensor Circuit Diagram
Courtesy of KIA MOTORS AMERICA, INC.

STEERING ANGLE SENSOR (SAS) CALIBRATION

1. PURPOSE OF CALIBRATION



On vehicle control, an ESC analyzes the intention of the driver.



An ESC recognizes a steering angle which a driver rotates through the steering angle sensor.



A steering angle sensor used in ESC adjusts 0° setting of steering wheel through K-line or CAN
communication.

2. STEERING ANGLE SENSOR (SAS) CALIBRATION METHOD

Angular velocity

0- 1016 °/s

Non-linear angle

-2.5 °-+2.5 °

Hysteresis angle

0 °-5 °

Rotational friction torque measuring

10 °/s

2008 Kia Sedona

2008 BRAKES ESP (Electronic Stability Program) - Sedona

Microsoft

Saturday, May 22, 2010 6:53:50 PM

Page 23

© 2006 Mitchell Repair Information Company, LLC.

Fig. 27: Identifying Steering Wheel Alignment Position
Courtesy of KIA MOTORS AMERICA, INC.

1. Align the wheel to the straight line, (steering wheel < ± 5°)

ex) Perform the wheel alignment first.

Align the wheel to the straight line.

A driver moves the vehicle forward and backward

about 5 meters twice or three times.

2. Connect Scan tool to the vehicle.

3. Select Brake system.

4. Select Steering angle sensor (SAS) calibration.

2008 Kia Sedona

2008 BRAKES ESP (Electronic Stability Program) - Sedona

Microsoft

Saturday, May 22, 2010 6:53:50 PM

Page 24

© 2006 Mitchell Repair Information Company, LLC.

Fig. 28: Selecting Steering Angle Sensor (SAS) Calibration
Courtesy of KIA MOTORS AMERICA, INC.

5. Perform the Steering angle sensor (SAS) calibration.

Fig. 29: Scan Tool Screen Display - 08 STEERING ANGLE SENSOR
Courtesy of KIA MOTORS AMERICA, INC.

6. Perform the procedure continuously.

2008 Kia Sedona

2008 BRAKES ESP (Electronic Stability Program) - Sedona

Microsoft

Saturday, May 22, 2010 6:53:50 PM

Page 25

© 2006 Mitchell Repair Information Company, LLC.