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.
2003 Toyota Matrix Base, FWD, AutomaticFACTORY OEM SERVICE PROCEDURE
Problem Symptoms Table
SEAT BELT WARNING SYSTEM PROBLEM SYMPTOMS
| Symptom/Suspect Area | See | |
|---|---|---|
| Driver's Seat Belt Warning Lamp Does Not Light Up | ||
| 1. Fuse | ..... | |
| 2. IG1 Relay | ..... | |
| 3. Combination Meter | INSTRUMENT PANEL SUB-ASSY LOWER | |
| 4. Air Bag Sensor Assembly Center | AIR BAG SENSOR ASSEMBLY | |
| 5. Front Seat Inner Belt Assembly LH | INSPECTION | |
| 6. Wire Harness | ..... | |
| Passenger's Seat Belt Bearing Lamp Assy Does Not Light Up | ||
| 1. Fuse | ..... | |
| 2. IG1 Relay | ..... | |
| 3. Passenger's Seat Belt Warning Lamp Assy | INSPECTION | |
| 4. Front Seat Inner Belt Assembly RH | INSPECTION | |
| 5. Wire Harness | ..... | |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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