2023 Jeep Gladiator 3.6L V6 24v VVT UPG I W-ESS Service and Repair Manual

This 2023 Jeep Gladiator 3.6L V6 24V VVT UPG I W-ESS Service & Repair Manual Covers

• Complete factory workshop procedures
• Factory diagnostic information
• Component removal and installation
• Repair and overhaul procedures
• Technical specifications
• Factory maintenance schedules
• Factory wiring diagrams
• Torque specifications
• Fuse and relay information
• Diagnostic flow charts

Engine Options

• 3.6L Pentastar V6 24V VVT UPG I with Engine Stop/Start (ERC)

Transmission Options

• 8-speed Automatic Transmission (850RE)

Engine and Drivetrain Repair Coverage

• Engine overhaul procedures
• Cylinder head servicing
• Timing chain inspection and replacement
• Sequential Multi-Port Fuel Injection diagnostics
• Fuel injector servicing
• Variable Valve Timing diagnostics
• Variable Valve Lift diagnostics
• Ignition system servicing
• Cooling system repairs
• Lubrication system servicing
• EVAP system diagnostics
• Emissions system diagnostics
• Automatic transmission diagnostics
• Automatic transmission servicing
• Transfer case servicing
• Front axle servicing
• Rear axle servicing
• Driveshaft servicing
• Universal joint servicing
• Differential repairs

4WD and AWD Technologies

• Command-Trac 4WD diagnostics
• Rock-Trac 4WD diagnostics (where equipped)
• Transfer case diagnostics
• Front axle disconnect diagnostics
• Locking differential diagnostics (where equipped)
• Electronic sway bar disconnect diagnostics (where equipped)
• Selec-Speed Control diagnostics
• Rear differential servicing

Chassis, Steering and Suspension

• Front solid axle suspension servicing
• Rear five-link suspension servicing
• Electro-hydraulic power steering diagnostics
• Steering gear servicing
• Steering column servicing
• Shock absorber replacement
• Coil spring servicing
• Wheel bearing servicing
• Stabiliser bar servicing
• Wheel alignment specifications

Braking Systems

• ABS diagnostics
• Electronic Stability Control diagnostics
• Traction Control diagnostics
• Hill Start Assist diagnostics
• Hill Descent Control diagnostics
• Brake hydraulic system bleeding
• Front and rear disc brake servicing
• Electronic parking brake diagnostics
• Wheel speed sensor diagnostics

Electrical Systems and Wiring

• Complete factory wiring diagrams
• Engine management system
• Fuel injection system wiring
• Engine Stop/Start (ESS) system diagnostics
• Charging system diagnostics
• Starting system diagnostics
• CAN communication network diagnostics
• Instrument cluster diagnostics
• Smart Key diagnostics
• Immobiliser diagnostics
• Uconnect infotainment system wiring
• Lighting system diagnostics
• Power window diagnostics
• Central locking diagnostics
• Trailer wiring diagnostics

Air Conditioning and HVAC

• Automatic climate control diagnostics
• Compressor servicing
• Refrigerant system repairs
• HVAC control module diagnostics
• Blower motor servicing
• Air distribution system servicing

Body, Interior and Restraint Systems

• Body panel removal and installation
• Dashboard removal procedures
• Interior trim servicing
• Smart Key servicing
• SRS airbag diagnostics
• Seat belt pretensioner servicing
• Removable roof component servicing
• Door removal procedures
• Tailgate servicing
• Wiper and washer system servicing

Diagnostics and Troubleshooting

• Factory diagnostic flow charts
• Symptom-based troubleshooting
• Scan tool diagnostics
• Sensor testing procedures
• Actuator testing
• CAN communication diagnostics
• Electrical fault isolation
• ECU programming procedures
• Component inspection procedures

Common Error Codes Covered

Engine Codes

• P0016 — Crankshaft Position–Camshaft Position Correlation (Bank 1 Sensor A)
• P0300 — Random/Multiple Cylinder Misfire Detected
• P0335 — Crankshaft Position Sensor “A” Circuit
• P0456 — EVAP System Small Leak Detected
• P0520 — Engine Oil Pressure Sensor Circuit
• P06DD — Engine Oil Pressure Control Circuit Stuck Off
• P1524 — Oil Pressure Out of Range – VVT Disabled

Transmission Codes

• P0700 — Transmission Control System Malfunction
• P0717 — Input/Turbine Speed Sensor No Signal
• P0731 — Gear 1 Incorrect Ratio
• P0740 — Torque Converter Clutch Circuit Malfunction

ABS and Chassis Codes

• C0031 — Left Front Wheel Speed Sensor Circuit
• C0034 — Right Front Wheel Speed Sensor Circuit
• C121C — Torque Request Signal Denied

Network Communication Codes

• U0002 — High Speed CAN Communication Bus Performance
• U0100 — Lost Communication With ECM/PCM
• U0121 — Lost Communication With ABS Control Module

Body Control Codes

• B1A28 — Key Fob Battery Low
• B2224 — Liftgate/Tailgate Switch Circuit Fault

ADAS Codes

• C2200 — Anti-Lock Brake Module Internal Fault
• C2502 — Forward Facing Camera Calibration Required

Plus many other codes included in the manual.

Fuse Box Diagram

• Power Distribution Center layout
• Interior fuse panel layout
• Relay locations
• Fuse identification charts
• Fuse amperage specifications
• Power distribution diagrams

Wiring Diagrams

• Engine management system
• Fuel injection system
• Engine Stop/Start system
• Automatic transmission
• Transfer case
• ABS/ESC system
• Air conditioning system
• SRS airbag system
• Instrument cluster
• Uconnect infotainment system
• Smart Key system
• Lighting system
• CAN communication network
• Trailer electrical system

Serpentine Belt and Timing System Information

• Accessory drive belt routing
• Serpentine belt inspection procedures
• Serpentine belt replacement procedures
• Timing chain inspection
• Timing chain replacement procedures
• Timing chain alignment specifications

Torque Specifications

• Engine fastener torque values
• Cylinder head torque specifications
• Main bearing torque values
• Connecting rod torque values
• Transmission torque specifications
• Transfer case torque specifications
• Differential torque specifications
• Suspension torque specifications
• Steering component torque values
• Brake system torque values
• Wheel nut torque specifications

Maintenance and Service Information

• Factory scheduled maintenance intervals
• Engine oil and filter replacement
• Automatic transmission fluid servicing
• Transfer case fluid replacement
• Differential oil replacement
• Engine coolant replacement
• Brake fluid replacement
• Spark plug replacement
• Engine air filter replacement
• Cabin air filter replacement
• Drive belt inspection
• Timing chain inspection
• Tyre rotation procedures
• Wheel alignment checks

Who Is This Manual For?

• New Zealand automotive workshops
• Independent repair garages
• Automotive technicians
• 4WD specialists
• Auto electricians
• Diagnostic specialists
• Fleet maintenance teams
• DIY owners
• Automotive training institutions