Hyundai Tucson: 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.
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the GDS.
Specification: Refer to “Wave Form”
Removal
•
DON’T remove the camshaft pos ...
Specification
ItemSpecificationCapacitance (pF)850 ~ 1,150
...
Other information:
Hyundai Tucson (LM) 2010-2015 Owners Manual: 75,000 miles (120,000 km) or 60 months
Rotating tires
Inspect air cleaner filter
Inspect vacuum hose
Inspect air conditioning refrigerant
Inspect brake hoses and lines
Inspect drive shafts and boots
Inspect exhaust pipe and muffler
Inspect front brake disc/pads, calipers
Inspect propeller shaft (AWD)
Inspect rear bra ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Repair procedures
Inspection
1.
Disconnect the ignition switch connector (B) and key warning switch connector (A) from under the steering column.
2.
Check for continuity between the terminals.
3.
If continuity is not specified, replace the switch.
Removal
1.
Disconnect the negative (-) battery termin ...