Hyundai i-30: ESP (Electronic Stability Program) System / Front Wheel Speed Sensor
Components and components location

1. Front wheel
speed sensor
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2. Front wheel
speed sensor connector
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Repair procedures
1. |
Loosen the wheel nuts slightly.
Raise the vehicle, and make sure it is securely supported.
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2. |
Remove the front wheel and tire (A) from front hub .
Tightening torque :
107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft)
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• |
Be careful not to damage the hub bolts when removing
the front wheel and tire (A).
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3. |
Loosen the mounting holt and then remove the wheel speed sensor cable
from the strut assembly.
Tightening torque :
8.8 - 13.7 N.m(0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)
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4. |
Remove the wheel speed sensor cable braket bolt (A).
Tightening torque :
7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)
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5. |
Remove the front wheel guard.
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6. |
Disconnect the wheel speed sensor connector (A) and then remove it.

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7. |
Loosen the bolt and then remove the wheel speed sensor (A).
Tightening torque :
6.9 - 10.8 N.m (0.7 - 1.1 kgf.m, 5.1 - 8.0 lb-ft)
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8. |
To install, reverse the removal procedure.
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1. |
Measure the output voltage between the terminal of the wheel speed sensor
and the body ground.
• |
In order to protect the wheel speed sensor, when measuring
output voltage, a 100Ω resister must be used as shown.
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|

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2. |
Compare the change of the output voltage of the wheel speed sensor to
the normal change of the output voltage as shown below.

V_low : 0.59V - 0.84V
V_high : 1.18V - 1.68V
Frequency range : 1 - 2,500 Hz
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Description and operation
Description
Introduction of Quick Brake Warning System (ESS)
In case of quick brake by driver, the brake lamp or turn signal is blinked to
warn against the vehicle at rear...
Components and components location
Components
1. Front wheel
speed sensor
2. Front wheel
speed sensor cable
Repair procedures
Removal
1...
Other information:
Components and components location
Components
1. Front Pressure
Side Impact Sensor (P-SIS)
2. Front Gravity
Side Impact Sensor (G-SIS)
Repair procedures
Removal
Front Pressure Side Impact Sensor
•
Removal of the airbag must be performed according to the precautions/procedures
described previously...
Electric power steering (EPS)
The system assists you with steering
the vehicle. If the engine is off or if
the power steering system becomes
inoperative, the vehicle may still be
steered, but it will require increased
steering effort.
Also, the steering effort becomes
heavier as the vehicle’s speed
increases and becomes lighter as
the vehicle’s speed decreases for
better control of the steering wheel...
Categories

1. Driver’s front air bag
2. Passenger’s front air bag
3. Side air bag*
4. Curtain air bag*
5. Knee air bag*
6. Front passenger air bag ON/OFF
switch
read more