Hyundai Tucson: Engine Control System / 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).

1.In the engine control system, failure can be quickly diagnosed by using the diagnosis tool.

(1)Self diagnosis : Checking failure and code number (DTC).

(2)Current data : Checking the system input/output data state.

(3)Actuation test : Checking the system operation condition.

(4)Additional function : Controlling other features including system option setting and zero point adjustment.

1.Check signal waveform of CKPS and CMPS using a diagnostic tool.

Specification : Refer to "DTC Diagnosis Guide"

• Be careful not to damage the parts located under the vehicle (floor under cover, canister, fuel tank) when raising the vehicle using the lift.(Refer to General Information - "Lift and Support Points")

1.Disconnect the crankshaft position sensor connector (A).

2.Remove the connector (A) from the bracket (B).

3.Remove the transfer assembly [4WD].(Refer to 4 Wheel Drive (4WD) System - "Front Wheel Transfer Assembly")

4.Remove the cover (A) after loosening the mounting bolt.

Tightening Torque :9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

5.Disconnect the wiring fixing clip (A) and then removing the sensor (B) after loosening the mounting bolt.

Tightening Torque :9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

• 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.

• Apply the engine coolant to the O-ring.

• Insert the sensor in the installation hole and be careful not to damage.

1.Install in the reverse order of removal.