🏷️ Basic Information Identification Make: Lexus Model: IS300 Year: 2003 Codes Chassis Code: XE10 Engine Code: 2JZ-GE 👋 Introduction Market Position Segment: Compact Executive Sedan / Sport Sedan Competitors: BMW 3 Series (E46), Mercedes-Benz C-Class (W203), Audi A4 (B6), Infiniti G35, Acura TL. Key Features Styling: Sharp, distinctive styling with a focus on sportiness and luxury, influenced by Japanese design sensibilities. Often praised for its clean lines and aggressive stance. Performance: Renowned for its robust 2JZ-GE engine, offering smooth power delivery and proven reliability. Available with both rear-wheel drive (RWD) and all-wheel drive (AWD). Luxury Appointments: Premium interior materials, comfortable seating, advanced features for its time, and Lexus's signature quiet and refined cabin. Manual Value: Essential resource for owners and independent mechanics seeking factory-accurate procedures and specifications for maintenance, repair, and diagnostics. 📋 Manual Details Coverage Areas Covered Areas: Full vehicle service, repair, diagnostics, maintenance, troubleshooting, electrical schematics, bodywork, specifications. Page Count Estimated Page Count: Approximately 2000+ pages (typical for comprehensive factory service manuals). Manual Type Manual Type: Official Factory Service Manual (Software) Language Language: English Format Format: Software (likely PDF or proprietary application accessible via download). 📖 Manual Coverage Systems Covered Engine: 2JZ-GE 3.0L inline-6, engine mechanical, lubrication, cooling, fuel delivery, ignition, emissions control, engine management (ECU). Transmission: Automatic Transmission (A340E) and Manual Transmission (GR6 - for certain markets/trims, though typically AWD was auto), clutch, driveline, axles. Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution), brake system components, hydraulic circuits, servicing. Steering: Power assisted steering system, steering column, steering gear, troubleshooting. Suspension: Front McPherson strut, rear multi-link suspension, springs, shock absorbers, bushings, alignment specifications. Electrical: 12V electrical system, battery, charging system (alternator), starting system (starter), lighting (headlights, taillights, interior), power windows, mirrors, locks, wipers, horn. HVAC: Heating, Ventilation, and Air Conditioning system, components, refrigerant handling, diagnostics, servicing. Body: Body panels, doors, hood, trunk, bumpers, glass, interior trim, weatherstripping, chassis structure. Restraints: Airbag system, seatbelts, SRS (Supplemental Restraint System) diagnostics and servicing. Diagnostic Tools: On-Board Diagnostics (OBD-II) system, trouble codes (DTCs), diagnostic connectors, scan tool usage. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement. Engine Repair: Engine overhaul, cylinder head service, piston and connecting rod service, crankshaft service, timing belt/chain replacement (if applicable, though 2JZ is known for chain), gasket replacement. Transmission Repair: Automatic transmission overhaul, manual transmission service, clutch replacement, seal replacement. Brake Repair: Brake pad and rotor replacement, caliper service, brake line replacement, bleeding procedures, ABS component replacement. Suspension Repair: Shock absorber/strut replacement, ball joint service, control arm bushing replacement, wheel bearing replacement, alignment adjustments. Electrical Troubleshooting: Wiring diagrams, circuit tracing, component testing, common electrical fault diagnosis. HVAC Repair: Refrigerant system service, compressor replacement, evaporator/condenser service, leak detection. Body Repair: Panel replacement, dent repair, rust repair, glass replacement, interior trim installation. Diagnostics: Detailed diagnostic procedures for all major systems, symptom-based troubleshooting guides. Technical Depth Depth: Comprehensive from basic maintenance to complete engine and transmission rebuilds, including detailed electrical diagnostics and body repair. 📊 Manual Specifications File Format Software Requirements: Requires a compatible operating system (e.g., Windows XP/7/10) and potentially specific browser plugins or a dedicated viewer application. Installation instructions are typically provided. Print Quality Digital Resolution: High-resolution digital images, diagrams, and text, ensuring clarity for printing and on-screen viewing. Binding Type Binding: N/A (Software Format) Paper Type Paper Quality: N/A (Software Format - printable pages are high quality) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline 6-Cylinder Displacement: 2,997 cc (3.0 Liters) Bore X Stroke: 86 mm x 86 mm Compression Ratio: 10.5:1 Valve Train: DOHC (Double Overhead Camshaft), 24 Valves (4 valves per cylinder), VVT-i (Variable Valve Timing with intelligence) Fuel Delivery: Electronic Fuel Injection (EFI) Performance Horsepower: 215 hp @ 5,600 rpm (approx.) Torque: 218 lb-ft @ 3,800 rpm (approx.) Fuel System Fuel Type: Unleaded Gasoline (91 Octane or higher recommended) 🔧 Transmission Standard Transmission Type Rwd: 5-speed Automatic (A340E) Optional Transmission Type AWD: 5-speed Automatic (A340E) with AWD Manual Transmission Availability: Some early models offered a 5-speed manual transmission (e.g., for the UK market, or specific performance variants, but less common globally for this year). Features Automatic Features: AI Shift control, sequential shifting capability (Sportshift). Fluid Specifications Automatic Transmission Fluid: Toyota ATF WS (World Standard) or equivalent (check specific manual for exact part number/type). Manual Transmission Fluid: GL-4 Gear Oil (specific viscosity recommended by Lexus, e.g., 75W-90). 📐 Dimensions Exterior Length: 177.0 inches Width: 69.1 inches Height: 55.5 inches Wheelbase: 105.1 inches Weights Curb Weight: Approx. 3,417 - 3,593 lbs (depending on drivetrain) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-star (Driver and Passenger) NHTSA Side Impact: 4-star (Front Passenger) Active Features ABS: Standard Anti-lock Braking System Ebd: Standard Electronic Brake-force Distribution Passive Features Airbags: Driver and front passenger airbags, side curtain airbags (optional on...