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 MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALFUSES & CIRCUIT BREAKERSIDENTIFICATIONENGINE ROOM JUNCTION & RELAY BLOCKS
2004 Toyota Celica GT, Standard
Engine Room Junction & Relay Blocks
2004 Toyota Celica GT, StandardSECTION Engine Room Junction & Relay Blocks
NOTE:
Numerous junction, relay and fusible link blocks are located in the engine room. See Fig 1. For identification of current flow, see Fig 2.
Component Locations
- Engine room junction block is located at left side of engine room. See Fig 1. For identification of engine room junction block components, see Fig 4. Engine room junction block contains relays and fuses. For identification of engine room junction block fuse components, see table below. The engine room junction block is the connection point for various wiring harnesses. For wiring diagrams of engine room junction block components, see appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
- Engine room relay block No. 1 is located at left side of engine room. See Fig 1. For identification of engine room relay block No. 1 components, see Fig 3. Engine room relay block No. 1 contains relays and fuses. For identification of engine room relay block No. 1 fuse components, see Fig 3. The engine room relay block No. 1 is the connection point for various wiring harnesses. For wiring diagrams of engine room relay block No. 1 components, see appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
- Engine room relay block No. 2 is located at left side of engine room. See Fig 1. For identification of engine room relay block No. 2 components, see Fig 5. Engine room relay block No. 2 contains relays and fuses. For identification of engine room relay block No. 2 fuse components, see table below. The engine room relay block No. 2 is the connection point for various wiring harnesses. For wiring diagrams of engine room relay block No. 2 components, see appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
ENGINE ROOM AND PASSENGER COMPARTMENT RELAY IDENTIFICATION
| RELAY DESCRIPTION |
|---|
| Engine Room Relay Block No. 1 |
| Engine Room Relay Block No. 2 |
| Front Fog Light Relay |
| Turn Signal Flasher Relay |
RENDER: 1.0x
NO RELATED
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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.