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 Service Manual: Battery. Specifications

Specification ▷ CMF68L-DIN Item Specification Model type CMF68L-DIN Capacity [20HR/5HR] (AH) 68 / 54 Cold Cranking Amperage (A) 600 Reserve Capacity (Min) 110 Specific Gravity 1...

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Forward Collision-Avoidance Assist Settings

Forward Safety With the engine on, select ‘Driver Assistance - Forward Safety' from the Settings menu to set whether or not to use each function. - Id 'Active Assist' is selected, Forward Collision-Avoidance Assist - will warn the driver with a warning message and an audible warning depending on the collision risk levels...