Hyundai Santa Fe: 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. 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 diagnostic tool. Specification : Refer to "DTC Diagnostic Guide" Removal    • DON’T remove the camshaft position sensor during engine running or right after engine stops, or a scald by the flowed out engine oil may occur...

Knock Sensor (KS). Specifications

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Other information:

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Opening the liftgate. Remotely starting vehicle

Opening the liftgate To open the liftgate: 1. Make sure you have the smart key in your possession. 2. Press either the liftgate open/close button on the vehicle or press and hold the liftgate open button on the smart key for more than one second. The hazard warning lights will blink two times and the liftgate will open...

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Theft-alarm system

This system helps to protect your vehicle and valuables. The horn will sound and the hazard warning lights will blink continuously if any of the following occur: - A door is opened without using the smart key. - The liftgate is opened without using the smart key...