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 437 (BODY CONTROL SYSTEMS - DIAGNOSTICS)CIRCUIT INSPECTIONPASSENGER BUCKLE SWITCH AND SEAT BELT WARNING OCCUPANT DETECTION SENSORINSPECTION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard
Inspection Procedure
2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
- Check passenger buckle switch
. See
PASSENGER BUCKLE SWITCH AND SEAT BELT WARNING OCCUPANT DETECTION SENSOR .
- NG: Replace the passenger buckle switch.
- OK: Go to next step.
- Check seat belt warning occupant detection sensor.
See STEP 1 - INSPECT COMBINATION METER CIRCUIT
.
- NG: Replace the seat belt warning occupant detection sensor.
- OK: Go to next step.
- Check wire harness and connector between seat belt warning occupant detection sensor and body ECU, passenger buckle switch and seat belt warning occupant detection sensor, passenger buckle switch and body ground.
- NG: Repair or replace wire harness or connector.
- OK: Go to next step.
Proceed to next circuit inspection shown on problem symptoms table. See PROBLEM SYMPTOMS TABLE .
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.