Hyundai Tucson: Crankshaft Position Sensor (CKPS)
Description
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, fuel is not supplied.That is, vehicle can't run without CKPS signal. 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).

Circuit Diagram

Harness Connector

Inspection
- Check signal waveform of CKPS and CMPS using a diagnostic tool.
Specification : Refer to "DTC Diagnosis Guide"
Removal
- Turn ignition switch OFF and disconnect the battery negative (-) terminal.
- Remove the engine room under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
- Disconnect the crankshaft position sensor connector (A).
- Remove the installation bolt (B), and then remove the crankshaft position sensor.
Tightening Torque : 7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb-ft)
Installation
WARNING
- Install the component with the specified torques.
- Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.
WARNING
Apply the engine coolant to the O-ring.
WARNING
Insert the sensor in the installation hole and be careful not to damage.
- Install in the reverse order of removal.
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Camshaft Position Sensor (CMPS)
Description
Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft
position by using a hall
element.
It is related with Crankshaft Position Sensor (CKPS) and detects the piston
position of each cylinder
which the CKPS can
Knock Sensor (KS)
Description
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
Heated Oxygen Sensor (H02S)
Description
Heated Oxygen Sensor (HO2S) consists of the zirconium and the alumina and is
installed on upstream
and downstream of the Manifold Catalyst Converter (MCC).
In order that this sensor normally operates, the temperature of the sensor
SEE MORE:
Lane Keeping Assist Operation
Warning and control
Lane Keeping Assist will help warn and
control the vehicle with Lane Departure
Warning and Lane Keeping Assist.
Lane Departure Warning
To warn the driver that the vehicle is
departing from the projected lane in
fro
Rail Pressure Sensor (RPS)
Description
Installed on the delivery pipe, the Rail Pressure Sensor (RPS) measures the
instantaneous fuel pressure
in the delivery pipe. The sensing element (Semiconductor element) built in the
sensor converts the
pressure to voltage signal.
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual