🏷️ Basic Information Identification Make: Mazda Model: Protege Year: 2003 Codes Chassis Code: BJ 👋 Introduction Market Position Segment: Compact Car / Economy Sedan and Hatchback Target Audience: Young drivers, families, budget-conscious consumers. Competitive Analysis Key Competitors: Honda Civic, Toyota Corolla, Nissan Sentra, Ford Focus, Chevrolet Cavalier. Value Proposition: Reliability, affordable maintenance, sporty driving dynamics for its class. Key Features Design: Clean, straightforward styling, available in sedan and hatchback body styles. Performance Focus: Sportier handling and responsive engines were often emphasized in marketing, particularly with higher trims. 📋 Manual Details Coverage Areas Primary Focus: Repair and Service Included Regions: North America, Global (specific to BJ chassis) Page Count Estimated Pages: 1500-2500 (typical for comprehensive service manuals) Manual Type Type: Factory Service Manual (FSM) / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed diagnostics, repair, and overhaul procedures for all Protege engines offered in 2003, including timing belt replacement, valve adjustments, and component assembly. Engine Performance: Fuel injection system diagnostics and repair, ignition system troubleshooting, emissions control systems (catalytic converter, EGR), turbocharger (if applicable). Transmission Manual: Disassembly, inspection, and repair of manual transmissions (FS5W71E/G), clutch system service, shifter linkage adjustment. Transmission Automatic: Automatic transmission (FN4A-EL) diagnostics, fluid service, torque converter replacement, electronic control unit (ECU) integration. Drivetrain: Front-wheel drive axle shaft inspection and replacement, differential service, all-wheel drive (AWD) system (if applicable) maintenance and repair. Suspension: Front and rear suspension component identification, replacement (shocks, struts, control arms, bushings), alignment specifications. Steering: Power steering system diagnostics, pump and rack replacement, steering column repair, alignment procedures. Brakes: Front and rear brake system service (pads, rotors, calipers), hydraulic system bleeding, ABS (Anti-lock Braking System) diagnostics and component replacement. Electrical System: Wiring diagrams for all systems, fuse box locations, relay functions, starter and alternator service, battery maintenance. Lighting System: Headlamp, taillamp, interior lighting, and accessory lighting troubleshooting and bulb replacement procedures. HVAC System: Air conditioning (A/C) system service, refrigerant handling, heater core replacement, blower motor diagnostics, climate control unit repair. Body Interior: Door panel removal, seat adjustment and replacement, dashboard disassembly, trim component repair. Body Exterior: Panel alignment, bumper replacement, door and hood adjustment, glass replacement (windshield, side windows). Restraints System: Airbag system diagnostics, SRS (Supplemental Restraint System) component replacement and safety precautions. Procedures Included Scheduled Maintenance: Detailed service intervals for oil changes, filter replacements, spark plugs, coolant flushes, brake fluid changes, timing belt service. Troubleshooting: Extensive diagnostic flowcharts and symptom-based troubleshooting guides for common and uncommon issues. Repair Procedures: Step-by-step instructions for component removal, installation, and repair across all major vehicle systems. Diagnostics: OBD-II (On-Board Diagnostics II) code interpretation, sensor testing, actuator testing, and electronic control unit (ECU) diagnostics. Specifications Data: Torque specifications for all fasteners, fluid capacities, diagnostic data, alignment angles, and electrical resistance values. Technical Depth Depth: Comprehensive, covering everything from basic fluid changes to complete engine and transmission overhauls, including advanced electrical diagnostics. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval. Print Quality Resolution: High-resolution, suitable for printing all pages. Binding Type Binding: Not applicable (digital download). Paper Type Paper Type: Not applicable (digital download). ⚙️ Engine Specifications Primary Engine Engine Code 1: FS-DE (2.0L DOHC) Engine Displacement 1: 1991 cc (2.0 Liters) Engine Layout 1: Inline 4-cylinder Horsepower 1: 125-130 hp @ 6000 rpm (approx.) Torque 1: 125-130 lb-ft @ 4000 rpm (approx.) Secondary Engine Engine Code 2: FP-DE (1.5L SOHC) - less common in North America for 2003 Engine Displacement 2: 1498 cc (1.5 Liters) Horsepower 2: 95-100 hp (approx.) Fuel System Fuel Delivery: Electronic Multi-Point Fuel Injection (MPI) Fuel Type: Unleaded gasoline (87 octane minimum recommended) Performance Redline: Approximately 6500-7000 rpm (check specific engine variant) 🔧 Transmission Standard Type Standard: 5-Speed Manual Transmission Optional Type Optional: 4-Speed Automatic Transmission (with overdrive) Features Drive Layout: Front-Wheel Drive (FWD) AWD Availability: All-Wheel Drive (AWD) was available on select trims (e.g., Protege DX AWD). Fluid Specifications Manual Transmission Fluid: API GL-4, SAE 75W-90 gear oil (Mazda specifies specific part numbers, consult manual for accuracy) Automatic Transmission Fluid: Dexron III/Mercon compatible ATF (Mazda recommended ATF-J) 📐 Dimensions Exterior Length: Approx. 172.6 - 175.2 inches (4384 - 4450 mm) depending on body style Width: Approx. 67.7 inches (1720 mm) Height: Approx. 55.1 - 56.7 inches (1400 - 1440 mm) depending on body style Wheelbase: Approx. 102.7 inches (2605 mm) Wheel Bolt Pattern: 4x100 Weights Curb Weight: Approx. 2500 - 2750 lbs (1134 - 1247 kg) depending on configuration Gross Vehicle Weight Rating: Typically around 3500-3700 lbs 🛡️ Safety Features Ratings NHTSA Frontal Impact Driver: 4 stars (for models equipped with side airbags) NHTSA Frontal Impact Passenger: 4 stars IIHS Side Impact: Good (for models with side airbags) Active Features ABS: Available on higher trims or as an option. Traction Control: Rarely standard, may have been available...