Kia Carens: 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 GDS. Specification: Refer to “Wave Form” ...

Knock Sensor (KS) Specifications

Specification Item Specification Capacitance (pF) 950 ~ 1,350 Resistance (MΩ) 4.87 ...

Other information:

Kia Carens RP (2013-2018) Service Manual: Components and components location

Component Location 1. BCM 2. Ultrasonic sensor ※ Parking assist control unit function and buzzer are built in BCM (body control unit). ...

Kia Carens RP (2013-2018) Owners Manual: Windshield wipers

When the wiper blade is not in a normal position, place the ignition switch in the ON position. The wiper blade will return to the normal position. Following are cases a wiper blade may be in an abnormal position. - The wiper blade may be positioned abnormally when in an automatic vehicle wash. ( ...