2023 Hyundai Tucson 2.5 GDI Service and Repair Manual

This 2023 Hyundai Tucson (NX4) 2.5 GDI Service and Repair Manual Covers

Engine & Drivetrain

Petrol Engine

• 2.5L Smartstream GDI/MPI Inline-4 (G4KN)
• Dual Injection System (GDI + MPI)
• Dual CVVT Variable Valve Timing
• Idle Stop & Go (ISG) System
• Aluminum Block and Cylinder Head Construction

Coverage Includes

• Engine mechanical overhaul procedures
• Smartstream GDI fuel system diagnostics
• Multi-port injection (MPI) system diagnostics
• Variable valve timing diagnostics
• Electronic throttle control diagnostics
• Ignition system testing and repair
• Cooling system troubleshooting
• Emissions control system repairs
• Intake and exhaust system servicing
• Engine Control Module (ECM) diagnostics
• 8-speed automatic transmission diagnostics
• Shift-by-wire system diagnostics where equipped
• HTRAC AWD system diagnostics where equipped
• Driveshaft and differential servicing

Chassis & Suspension

• MacPherson strut front suspension repairs
• Multi-link rear suspension servicing
• Electric Power Steering (EPS) diagnostics
• Steering angle sensor calibration
• Wheel alignment specifications
• Wheel bearing replacement procedures
• Suspension component testing and troubleshooting
• Tire Pressure Monitoring System (TPMS) diagnostics

Braking Systems

• Anti-lock Braking System (ABS) diagnostics
• Electronic Stability Control (ESC) diagnostics
• Electronic Brake Distribution (EBD) diagnostics
• Traction Control System (TCS) diagnostics
• Downhill Brake Control diagnostics where equipped
• Electronic parking brake diagnostics where equipped
• Brake hydraulic system service procedures
• Brake component inspection and replacement procedures

Electrical & Wiring

• Complete Hyundai factory wiring diagrams
• CAN communication network diagnostics
• Body Control Module (BCM) diagnostics
• Smart Key system diagnostics
• Push-button start system diagnostics
• Power distribution schematics
• Fuse and relay identification
• Battery and charging system diagnostics
• Starting system troubleshooting
• Exterior and interior lighting diagnostics
• Digital instrument cluster diagnostics
• Infotainment and navigation system diagnostics
• Apple CarPlay® and Android Auto™ troubleshooting

Hyundai SmartSense & Driver Assistance Systems

The 2023 Tucson features Hyundai SmartSense safety technologies, including collision avoidance, lane-centering assistance, blind-spot monitoring, and adaptive cruise control systems.

• Forward Collision-Avoidance Assist (FCA) diagnostics
• Blind-Spot Collision-Avoidance Assist (BCA) diagnostics
• Lane Keeping Assist (LKA) diagnostics
• Lane Following Assist (LFA) diagnostics
• Rear Cross-Traffic Collision-Avoidance Assist (RCCA) diagnostics
• Smart Cruise Control (SCC) diagnostics
• Safe Exit Warning (SEW) diagnostics
• Forward camera calibration procedures
• Radar sensor calibration procedures
• Blind-spot radar diagnostics

Air Conditioning & HVAC

• Automatic climate control diagnostics
• HVAC control module testing
• Refrigerant servicing specifications
• Heating and ventilation troubleshooting
• Blower motor repairs
• Air distribution actuator diagnostics
• Cabin air quality system diagnostics

Body & Interior

• Interior trim removal and installation procedures
• Smart key and remote entry diagnostics
• Power tailgate diagnostics where equipped
• Door lock and power window diagnostics
• Exterior body repair procedures
• Seat adjustment system repairs
• Airbag and occupant restraint system servicing
• Occupant classification system diagnostics

Diagnostics & Troubleshooting

• Hyundai GDS diagnostic procedures
• OBD-II and manufacturer-specific DTC lookup
• ADAS calibration workflows
• Transmission troubleshooting procedures
• Module programming and configuration procedures
• Component testing specifications
• Electrical fault tracing procedures
• Service functions and adaptations

Common Error Codes Covered

This manual provides diagnostic and repair procedures for thousands of Hyundai-specific fault codes, including:

Engine Codes

• P0106 – Manifold Absolute Pressure Sensor Range/Performance
• P0171 – System Too Lean
• P0300 – Random/Multiple Cylinder Misfire Detected
• P0420 – Catalyst System Efficiency Below Threshold
• P0507 – Idle Speed Control System RPM Higher Than Expected
• P219F – Cylinder Balance Fault

Transmission & Drivetrain Codes

• P0700 – Transmission Control System Malfunction
• P0717 – Input/Turbine Speed Sensor No Signal
• P0722 – Output Speed Sensor No Signal
• P0741 – Torque Converter Clutch Performance
• P0868 – Transmission Fluid Pressure Low

ABS & Chassis Codes

• C1208 – Wheel Speed Sensor Signal Fault
• C1210 – ABS Hydraulic Unit Fault
• C1260 – Steering Angle Sensor Fault
• C2402 – Motor-Driven Power Steering Fault

Network Communication Codes

• U0100 – Lost Communication with ECM/PCM
• U0121 – Lost Communication with ABS Control Module
• U0155 – Lost Communication with Instrument Cluster
• U0401 – Invalid Data Received from ECM/PCM

ADAS & SmartSense Codes

• C1604 – Forward Camera Calibration Required
• C1606 – Forward Collision-Avoidance System Fault
• C1611 – Radar Sensor Alignment Fault
• C1620 – Lane Keeping Assist System Fault

Body Control Codes

• B1102 – Driver Airbag Circuit Fault
• B1329 – Smart Key Communication Fault
• B1602 – Immobilizer Communication Error
• B1764 – Power Tailgate System Fault

And thousands of additional diagnostic codes, wiring diagrams, troubleshooting workflows, technical service information, calibration procedures, and repair instructions.

Who Is This Manual For?

This manual is ideal for:

• Professional Hyundai service centers
• Independent repair garages
• Mobile mechanics
• Automotive technicians
• ADAS calibration specialists
• Hyundai Tucson owners performing DIY repairs
• Automotive training institutions

If you are troubleshooting, maintaining, servicing, or repairing a 2023 Hyundai Tucson (NX4) 2.5 GDI, this is the factory workshop manual you need.