Hyundai Elantra: Engine Control System / Crankshaft Position Sensor (CKPS) Description and Operation
Crankshaft Position Sensor (CKPS) detects the crankshaft
position and is one of the most important sensors of the engine control
system. If there is no CKPS signal input, the engine may stop because of
CKPS signal missing. This sensor is installed on the cylinder block or
the transaxle housing and generates alternating current by magnetic flux
field which is made by the sensor and the target wheel when engine
runs.
The target wheel consists of 58 slots and 2 missing slots on 360 degrees CA (Crank Angle).

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the ECTS connector.
3.
Remove the ECTS.
4.
After immersing the thermistor of the sensor into engine coolant, measure resistanc ...
Specification
ItemSpecificationCoil Resistance (?)774 ~ 946 [20°C(68°F)]
...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Specifications
Specifications
ItemSpecificationMaster cylinderTypeTandemCylinder I.D.22.22 mmPiston stroke45 ± 1 mm (1.77 ± 0.039 in)Fluid level switchProvidedBrake boosterType10" SingleBoosting ratio8.0 : 1Front disc brakeTypeVentilated discDisc O.D.O 280 mm (11.02 in)Disc thickness23 mm (0.91 in)Caliper p ...
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Removal
•
Put on gloves to protect your hands.
•
Use seat covers to avoid damaging any surfaces.
1.
Remove the roof side molding.
(Refer to Body Side Moldings - "Roof Side Molding")
2.
Remove the package tray trim.
(Refer to ...