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: Smart Key Diagnostic Repair procedures

Inspection Self Diagnosis With GDS Smart key system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis. The following three features will be major problem in SMART KEY system. 1. ...

Kia Carens RP (2013-2018) Service Manual: Electronic Parking Brake (EPB) Repair procedures

Removal 1. Turn ignition OFF and disconnect the negative (-) battery cable. 2. Remove the floor console assembly. (Refer to Body - “Floor console assembly") 3. Disconnect the EPB control ...