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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 187 (ENGINE CONTROLS - SYSTEM & COMPONENT TESTING)COMPUTERIZED ENGINE CONTROLSNOTES
2004 Toyota Celica GT, Standard
Computerized Engine Controls: Notes
2004 Toyota Celica GT, StandardSECTION Notes
WARNING: This page is about a different car, the 2003 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For wire color identification, see WIRE COLOR IDENTIFICATION table.
WIRE COLOR IDENTIFICATION
| Color (1) | Code | ||
|---|---|---|---|
| Black | B | ||
| Blue | L | ||
| Brown | BR | ||
| Gray | GR | ||
| Green | G | ||
| Light Green | LG | ||
| Orange | O | ||
| Pink | P | ||
| Red | R | ||
| Sky Blue | SB | ||
| Violet | V | ||
| White | W | ||
| Yellow | Y | ||
|
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RENDER: 1.0x
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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.