Hyundai Elantra: Engine Control System / Knock Sensor (KS)
Description and operation
Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage.
Knock Sensor (KS) is installed on the cylinder block and senses engine knocking. When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element. At this time, this sensor transfers the voltage signal higher than the specified value to the ECM and the ECM retards the ignition timing.
Specifications
Item
|
Specification
|
Capacitance (pF)
| 850 - 1150
|
Resistance (MΩ)
| R > 1
|
Schematic diagrams
Harness Connector
Repair procedures
1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal |
2. | Disconnect the knock sensor connector (A). |
3. | Remove the installation bolt (A), and then remove the sensor from the cylinder block. Tightening Torque : 18.6 - 24.5 N.m (1.9 - 2.5 kgf.m, 13.7 - 18.1 lb-ft) |
|
•
| Install the component with the specified torques. |
•
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
|
1. | Install in the reverse order of removal. |
Description and operation
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Description and operation
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Other information:
Function malfunction
When Rear View Monitor is not working
properly, or the screen flickers, or the
camera image does not display normally,
we recommend that the system be
inspected by an authorized HYUNDAI
dealer.
Limitations of the function
When the vehicle is stopped for a long
time in winter or when the vehicle is
parked in an indoor parking lot, the
exhaust fumes may temporarily blur ..
Applying the parking brake
Always set the parking brake before
leaving the vehicle, to apply:
Firmly depress the brake pedal.
Pull up the parking brake lever as far as
possible.
WARNING
To reduce the risk of SERIOUS INJURY
or DEATH, do not operate the parking
brake while the vehicle is moving
except in an emergency situation. It
could damage the brake system and
lead to an accident.
Releas..