Kia Cee'd: 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 Cee'd JD Service Manual: TPMS Receiver Schematic diagrams
Circuit Diagram Hamess Connector   Pin No. Discription 1 Battery ECU 2 Ignition ON 3 CAN_HIGH 4 CAN_LOW ...

Kia Cee'd JD Owners Manual: Basic Mode Screen
(1) Mode Display Displays currently operating mode. (2) Frequency Displays the current frequency. (3) Preset Displays current preset number 1 ~ 6. (4) Preset Display Displays saved presets. (5) Auto Store Automatically saves frequencies with superior reception to Preset buttons. (6 ...