Hyundai Sonata: 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. 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. 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.

Camshaft Position Sensor (CMPS) Repair procedures
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 pos ...

Knock Sensor (KS) Specifications
Specification ItemSpecificationResistance(M?)4.87 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Audio Remote Control (Sonata Sports) Repair procedures
Inspection 1. Check for resistance between terminals in each switch position (LH). [LH : Audio + Hands free] SwitchConnector TerminalResistance(±5%)SEEK Up4-5430 ?SEEK Down1.11 k?MUTE3.11 k?Volume (+)4.61 k?Volume (-)6.81 k?Voice10.71 k?SEND18.91 k?END40.91 k? 2. Check for resistance be ...

Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location
Component Location 1. Windshield wiper arm & blade2. Wiper & washer switch3. Windshield washer hose & nolzzle4. Washer reservoir5. Washer motor6. Washer fluid level sensor7. Wiper motor & linkage assembly8. Wiper High/Low relay (Built - in Metal core block PCB) ...

© 2018-2025 www.hsonatalf.org