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 53 (ELECTRICAL COMPONENT LOCATOR)CONTROL UNITS
2004 Toyota Matrix XR, FWD, Standard
Control Units
2004 Toyota Matrix XR, FWD, StandardSECTION Control Units
WARNING: This page is about a different car, the 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
CONTROL UNITS LOCATION
| Component | Component Location |
|---|---|
| A/C Control Assembly | Behind center of dash. See Figure. |
| Body ECU | Behind right side of dash. See Figure. |
| Cruise Control ECU | Behind left side of dash. See Figure. |
| Engine Control Module | Behind right side of dash. See Figure. |
| Ignition Coil & Ignitor | On top of each spark plug. |
| Shift Lock ECU | At base of shifter lever. See Figure. |
| Skid Control ECU | Above instrument panel J/B. See Figure. |
| Sliding Roof Control ECU | On front of sliding roof. |
| Theft Deterrent ECU | Behind right side of dash. See Figure. |
| Wireless Door Lock ECU | On right side of luggage compartment. |
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.