Kia Cadenza YG: Engine Control System / Knock Sensor (KS) Description and Operation

Kia Cadenza YG 2016-2021 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 and can cause engine damage. The two Knock Sensor (KS) are installed inside the V-valley of the cylinder block and senses engine knocking.
When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element.
When a knock 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.

    Inspection 1. Check the signal waveform of the CMPS and CKPS using the GDS. Specification: Refer to “Wave Form” Removal     • DON''T remove the camshaft position sensor while the engine is running or right after engine is turned off.

    Specification ItemSpecificationCapacitance (pF)950 ~ 1,350Resistance (MΩ)4.87

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Description and Operation

    Description System Overview The System offers the following features: – Human / machine interface through a 1-stage button, for terminal switching and engine start. – Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

    Kia Cadenza YG 2016-2021 Service Manual: Heater Unit Components and Components Location

    Component Location Components 1. Heater Case (LH)2. Separator3. Evaporator Core4. Shower Duct (LH)5. Heater Core Cover6. Heater Core7. Mode Actuator8. Mode Cam9. Temp Actuator (Drive)10. Vent Door Arm11. Floor Door Arm 1. Heater Case (RH)2.

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