Kia Sedona: Knock Sensor (KS) Description and Operation
Third generation YP (2014-2025) / Kia Sedona YP Service Manual / Engine Control / Fuel System / Engine Control System / Knock Sensor (KS) Description and Operation
| Description |
Knocking is a phenomenon characterized by undesirable
vibration and noise that can cause engine damage. Two Knock Sensors (KS)
are installed inside the V-valley of the cylinder block to sense engine
knocking.
When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element.
When a knocking occurs, the sensor produces voltage signal.
The ECM retards the ignition timing when knocking occurs. If the
knocking disappears after retarding the ignition timing, the ECM will
advance the ignition timing. This sequential control can improve engine
power, torque and fuel economy.
Knock Sensor (KS) Specifications
Specification
ItemSpecificationCapacitance (pF)950 ~ 1,350Resistance (MΩ)4.87
...
Knock Sensor (KS) Schematic Diagrams
Circuit Diagram
...
Other Information:
Light-emitting diode (LED) headlamps and lamps
Depending on version, the affected types of
headlamps/lamps are:
"DS MATRIX LED VISION" headlamps.
Offset daytime running lamps.
Direction indicator side repeaters.
Side spotlamps.
Full LED tec ...
Mode selection
The mode selection button controls the direction of the air flow through the
ventilation system.
Air can be directed to the floor, dashboard outlets, or windshield. Six symbols
are used to repr ...
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