Hyundai Tucson: Schematic Diagrams

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Emission Control Syste / Schematic Diagrams

  1. Manifold Absolute Pressure Sensor (MAPS)
  2. Intake Air Temperature Sensor (IATS)
  3. ETC (Electronic Throttle Conlrol) System
  4. Engine Coolant Temperature Sensor (ECTS)
  5. Crankshaft Position Sensor (CKPS)
  6. Camshaft Position Sensor (CMPS) Bank1/Intake
  7. Camshaft Position Sensor (CMPS) Bank/Exhaust
  8. Knock Sensor (KS)
  9. Heated Oxygen Sensor (HO2S) Bank1/Sensorl
  10. Heated Oxygen Sensor (H02S) Bank1/Sensor2
  11. Rail Pressure Sensor (RPS)
  12. Fuel Level sender (FLS)
  13. CVVT Oil Temperature Sensor (OTS)
  14. Boost Pressure Sensor (BPS)
  • Accelerator Pressure Sensor (APS)
  • A/C Pressure Transducer (APT)
  • Ignition Switch Signal
  • Battery Power Signal
  • Vehicle Speed Signal
  • Inhibilor Switch Signal
  • Brake Switch Signal
  1. Injector
  2. Ignition Coil
  3. ETC Motor Integrated into ETC Module
  4. Purge Control SolenokJ Valve {PCSV)
  5. Variable Force Solenoid Valve (VFS) Bank1/Intake
  6. Variable Force Solenoid Valve (VFS) Bank1/Exhaus1
  7. Fuel Pressure Regulator Valve
  8.  Electric Waste Gate Actuator (EWGA)
  9. RCV Control Solenoid Valve
  • Main Relay
  • Fuel Pump Relay
  • A/C Control
  • Self Diagnosis


Purge Control Solenoid Valve (PCSV)




Symptom/ Suspect area

Engine will not start or stuggle to start/ Vapor hose damaged or disconnected

Engine stuggle to start/ Malfunction of the Purge Control Solenoid Valve

Rough idle or engine stalls/

  • Vapor hose damaged or disconnected
  • Malfunction of the PRV (Pressure Regulating Valve)

Rough idle/  Malfunction of the Evaporative Emission Control System

Excessive oil consumption/  Positive crankcase ventilation line clogged


     Clutch System

     General Information

    Specifications Service Standard Tightening Torques Lubricants Special Service Tools Troubleshooting

     Clutch Cover And Disc


     Engine Oil - Removal and Installation

    Disconnect the battery negative terminal.  Remove the engine room under cover. (Refer to Engine and Transaxle Assembly - "Engine Room Under Cover") Drain the coolant. (Refer to Cooling System - "Coolant") D

     Forward Collision-Avoidance Assist Operation

    Basic function Warning and control The basic function for Forward Collision- Avoidance Assist is to help warn and control the vehicle depending on the collision risk level : 'Collision Warning', 'Emergency Braking' and 'Stopping vehicle and en