Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Subaru Baja AutomaticFACTORY OEM SERVICE PROCEDURE
External Pages
These are pages that do not belong to the exact selected vehicle (2003 Subaru Baja Automatic), but are still accessible from a link in your vehicle's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle.
- Different variant/trim
- Different car
- Section 1 (Engine Controls - On-Vehicle Adjustments)
- Section 2 (Disc & Drum)
- Section 3 (System Wiring Diagrams)
- Section 4 (System Wiring Diagrams)
- Section 5 (Engine Controls - Self-Diagnostics - 3.0L)
- Section 6 (Self-Diagnostics - 2.0L)
- Section 7 (System Wiring Diagrams)
- Section 8 (System Wiring Diagrams)
- Section 9 (System Wiring Diagrams)
- Section 10 (Air Bag Restraint Systems)
- Section 11 (Engine Controls - Removal & Installation - Forester)
- Section 12 (Engine Controls - Removal & Installation - IMPREZA & Outback Sport)
- Section 13 (Common Specs & Procedures)
- Section 14 (Specifications & Procedures)
- Section 15 (Specifications)
- Section 16 (Specifications)
- Section 17 (Common Specs & Procedures)
- Section 18 (Common Specs & Procedures)
- Section 19 (Disc & Drum)
- Section 20 (Axle Shafts - Front)
- Section 21 (Axle Shafts - Rear)
- Section 22 (Axle Shafts - Front)
- Section 23 (Axle Shafts - Rear)
- Section 24 (System Wiring Diagrams)
- Section 25 (System Wiring Diagrams)
- Section 26 (System Wiring Diagrams)
- Section 27 (System Wiring Diagrams)
- Section 28 (Specifications & Drive Belt Routing)
- Section 29 (Generators & Regulators (Except Outback Sport))
- Section 30 (Front Suspension)
- Section 31 (Generators & Regulators)
- Section 32 (Generators & Regulators (Outback Sport))
- Section 33 (Starters (Except Outback Sport))
- Section 34 (Starters)
- Section 35 (A/T Servicing)
- Section 36 (Front Suspension)
- Section 37 (Front Suspension)
- Section 38 (Rear Suspension)
- Section 39 (Rear Suspension)
- Section 40 (Rear Suspension)
- Section 41 (Air Bag Restraint Systems)
- Section 42 (Air Bag Restraint Systems)
- Section 43 (A/T Control Systems)
- Section 44 (Overhaul)
- Section 45 (Exterior/Interior Trim)
- Section 46 (Automatic Transmission (Diagnostics))
- Section 47 (Manual Transmission & Differential)
- Section 48 (Clutch System)
- Section 49 (Exhaust System (H4SO))
- Section 50 (Exhaust System (H4DOTC))
- Section 51 (Propeller Shaft)
- Section 52 (Air Intake System (H4DOTC))
- Section 53 (Air Intake System (H4SO))
- Section 54 (HVAC)
- Section 55 (Lighting Systems)
- Section 56 (Washer System & Wiper System)
- Section 57 (Seats)
- Section 58 (Engine Mechanical - 2.5L - SOHC)
- Section 59 (Engine Mechanical - 2.0L DOHC/TC)
- Section 60 (Engine Cooling System)
- Section 61 (Engine Lubrication System)
- Section 62 (Ignition System - SOHC)
- Section 63 (Ignition System - DOHC/TC)
- Section 64 (Fuel System - SOHC)
- Section 65 (Fuel System - DOHC/TC)
- Section 66 (Identification & Specifications)
- Section 67 (Hoisting & Jacking)
- Section 68 (Fuel Injection (Fuel Systems, H6DO))
- Section 69 (Emission Control (Aux Emission Control Devices, H6DO))
- Section 70 (Intake (Induction, H6DO))
- Section 71 (Engine Mechanical (H6DO))
- Section 72 (Exhaust (H6DO))
- Section 73 (Cooling (H6DO))
- Section 74 (Lubrication (H6DO))
- Section 75 (Automatic HVAC - Diagnostics)
- Section 76 (Fuel Injection (Fuel Systems) (H4SO))
- Section 77 (Emission Control (Aux Emission Control Devices) (H4SO))
- Section 78 (Intake (Induction) (H4SO))
- Section 79 (Engine Mechanical (H4SO))
- Section 80 (Exhaust (H4SO))
- Section 81 (Engine Cooling System (H4SO))
- Section 82 (Lubrication (H4SO))
- Section 83 (Ignition (H4SO))
- Section 84 (Engine (Diagnostics) (H4SO))
- Section 85 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO))
- Section 86 (Fuel Injection (Fuel Systems) (H4SO U5 (PZEV)))
- Section 87 (Intake (Induction) (H4SO U5 (PZEV)))
- Section 88 (Exhaust (H4SO U5 (PZEV)))
- Section 89 (Engine (Diagnostics) (H4SO U5 (PZEV)))
- Section 90 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO U5 (PZEV)))
- Section 91 (Fuel Injection (Fuel Systems) (H4DOTC))
- Section 92 (Intake (Induction) (H4DOTC))
- Section 93 (Engine Mechanical (H4DOTC))
- Section 94 (Exhaust (H4DOTC))
- Section 95 (Engine Cooling System (H4DOTC))
- Section 96 (Lubrication (H4DOTC))
- Section 97 (Ignition (H4DOTC))
- Section 98 (Engine (Diagnostics) (H4DOTC))
- Section 99 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC))
- Section 100 (Fuel Injection (Fuel Systems) (H6DO))
- Section 101 (Emission Control (Aux Emission Control Devices) (H6DO))
- Section 102 (Intake (Induction) (H6DO))
- Section 103 (Engine Mechanical (H6DO))
- Section 104 (Exhaust (H6DO))
- Section 105 (Engine Cooling System (H6DO))
- Section 106 (Lubrication (H6DO))
- Section 107 (Ignition (H6DO))
- Section 108 (Engine (Diagnostics) (H6DO))
- Section 109 (A/T & M/T Control Systems)
- Section 110 (Automatic Transmission)
- Section 111 (Automatic Transmission (Diagnostics) (H4SO))
- Section 112 (Automatic Transmission (Diagnostics) (H4DOTC))
- Section 113 (Manual Transmission And Differential)
- Section 114 (Clutch System)
- Section 115 (Fuel Injection (Fuel Systems) (H4SO))
- Section 116 (Emission Control (Aux. Emission Control Devices) (H4SO))
- Section 117 (Intake (Induction) (H4SO))
- Section 118 (Engine Mechanical (H4SO))
- Section 119 (Exhaust (H4SO))
- Section 120 (Engine Cooling System (H4SO))
- Section 121 (Lubrication (H4SO))
- Section 122 (Ignition (H4SO))
- Section 123 (Engine (Diagnostics) (H4SO))
- Section 124 (Fuel Injection (Fuel Systems) (H4DOTC))
- Section 125 (Emission Control (Aux. Emission Control Devices) (H4DOTC))
- Section 126 (Intake (Induction) (H4DOTC))
- Section 127 (Engine Mechanical (H4DOTC))
- Section 128 (Exhaust (H4DOTC))
- Section 129 (Engine Cooling System (H4DOTC))
- Section 130 (Lubrication (H4DOTC))
- Section 131 (Ignition (H4DOTC))
- Section 132 (Engine (Diagnostics) (H4DOTC))
- Section 133 (FUEL INJECTION (FUEL SYSTEMS) (STi))
- Section 134 (EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (STi))
- Section 135 (INTAKE (INDUCTION) (STi))
- Section 136 (ENGINE MECHANICAL (STi))
- Section 137 (Exhaust (STI))
- Section 138 (LUBRICATION (STi))
- Section 139 (IGNITION (STi))
- Section 140 (ENGINE (DIAGNOSTICS) (STi))
- Section 141 (A/T Control System & M/T Control System)
- Section 142 (Automatic Transmission)
- Section 143 (Automatic Transmission (Diagnostics))
- Section 144 (Manual Transmission & Differential (6-Speed))
- Section 145 (Clutch System)
- Section 146 (Power Assisted System (Power Steering))
- Section 147 (HVAC System (Heater, Ventilator And A/C))
- Section 148 (HVAC System (Auto Ac) (Diagnostics))
- Section 149 (Washer System & Wiper System)
- Section 150 (Instrumentation - Driver Info)
- Section 151 (Engine Cooling System (H4DOTC) - Mechanism & Function)
- Section 152 (Power Steering - Mechanism & Function)
- Section 153 (Lighting System)
- Section 154 (Washer System & Wiper System)
- Section 155 (Instrumentation - Driver Info)
- Section 156 (Exterior / Interior Trim)
- Section 157 (HVAC System - Auto Air Conditioning (Diagnostics))
- Section 158 (HVAC System - Heater, Ventilator & Air Conditioning)
- Section 159 (Sunroof/T-Top/Convertible Top (Sunroof))
- Section 160 (Manual Transmission And Differential (5-Speed))
- Section 161 (Wheel And Tire System)
- Section 162 (Lighting System)
- Section 163 (Sunroof/T-Top/Convertible Top (Sunroof))
- Section 164 (Exterior / Interior Trim)
- Section 165 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO))
- Section 166 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC))
- Section 167 (Diagnostic Trouble Code (DTC) Detecting Criteria (STI))
- Section 168 (Power Assisted System (Power Steering))
- Section 169 (EGR Function Testing - SUBARU)
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.