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.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 318 (FUSES & CIRCUIT BREAKERS)IDENTIFICATIONENGINE COMPARTMENT JUNCTION & RELAY BLOCKS
2004 Toyota Matrix XR, FWD, Standard
Engine Compartment Junction & Relay Blocks
2004 Toyota Matrix XR, FWD, StandardSECTION Engine Compartment Junction & Relay Blocks
WARNING: This page is about a different car, the 2004 Toyota Sequoia and 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Junction, relay and fusible link blocks are located in engine compartment. See Fig 1. For description of electrical power distribution, see Fig 2.
Component Locations
- Engine compartment fusible link block is located at left of engine compartment. See Fig 1. Fusible link block contains fusible links. See Fig 3. For identification of protected circuits, see table below. For wiring diagrams of fusible link block circuits, see appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
- Junction block is located at left of engine compartment. See Fig 1. Junction block contains fuses and relays. See Fig 4. For description of protected circuits, see table below. For wiring diagrams of junction block circuits, see appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
- Engine compartment relay block No. 2 is located at left of engine compartment. See Fig 1. Relay block No. 2 contains fuses and relays. See Fig 5. For description of protected circuits, see table below. For wiring diagrams of relay block No. 2 circuits, see appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
- Engine compartment relay block No. 3 is located at left of engine compartment. See Fig 1. Relay block No. 3 contains fuses and relays. See Fig 6. For description of protected circuits, see table below. For wiring diagrams of relay block No. 3 circuits, see appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
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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.