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 317 (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 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For locations of engine compartment junction, relay and fusible link blocks, see Fig 1. For description of electrical power distribution, see Fig 2.
- Engine compartment fusible link block is located at left of engine compartment. See Fig 1. For identification of components, see Fig 3. For identification of protected circuits, see table below. For wiring diagrams of fusible link block circuits, see POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article.
- Engine compartment junction block is located at left of engine compartment. See Fig 1. For identification of junction block relays and fuses, see Fig 4. For identification of protected circuits, see table below. For wiring diagrams of engine compartment junction block circuits, see POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article.
- Engine compartment relay block No. 2 is located at left of engine compartment. See Fig 1. For identification of relays and fuses, see Fig 5. For identification of protected circuits, see table below. For wiring diagrams of relay block No. 2 circuits, see appropriate diagram in SYSTEM WIRING DIAGRAMS article.
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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.