Hyundai Tucson: CCWD Actuator- Description

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Engine Control - Fuel System / CCWD Actuator / CCWD Actuator- Description


CVVD(Continuous Variable Valve Duration) System is a device to control the optimum open and close timing according to the driving mode by changing the valve opening section.

CVVD Actuator



Circuit Diagram

Circuit Diagram

Harness Connector

Harness Connector



  1. Turn the ignition switch OFF, and disconnect the battery negative (-) terminal.
  2. Remove the air cleaner assembly.

(Refer to Engine Mechanical System - "Air Cleaner Assembly")

  1. Remove the high pressure fuel pipe.

(Refer to Fuel Delivery System - "Fuel Line")

  1. Remove the CVVD actuator (A) after loosening the mounting bolt.

Tightening Torque : 18.6 - 24.5 N.m (1.9 - 2.5 kgf.m, 13.7 - 18.0 lb-ft)

CCWD Actuator- Installation


     CCWD Actuator- Installation

    WARNING When installing the CVVD actuator the shaft gear do not fit properly, rotate the C W D actuator in both directions and installing it uaturally. (Do not impact when installating the component.) Do not damage to the component whe

     Fuel Delivery System - Fuel Tank

     Fuel Tank

    Component Location Fuel tank Canister Vapor hose Ventilaton hose Fuel filler hose Fuel tank air filter Leveling hose Fuel Level Sender (FLS) Fuel pump Fuel filter Fuel pressure regulator Fuel Perssure Sensor (FPS) High


     Heater Pipe

    Disconnect the battery negative terminal. Remove the engine cover. (Refer to Engine and Transaxle Assembly - "Engine Cover") Remove the engine room under cover. (Refer to Engine and Transaxle Assembly - "Engine Room Unde

     Drive Belt System- Removal and Installation

    Components Crankshaft Damper Pulley Drive Belt Tensioner Drive Belt Removal and Installation Fix the drive belt tensioner. (1) Insert the drive belt tensioner by installing fixing pin (A) after turning the drive belt tensione