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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 367 (AIR BAG RESTRAINT SYSTEMS)DIAGNOSTICSOCCUPANT CLASSIFICATION ELECTRONIC CONTROL UNIT (ECU) INITIALIZATION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard
Occupant Classification Electronic Control Unit (Ecu) Initialization Procedure
2004 Toyota Matrix XR, FWD, StandardSECTION Occupant Classification Electronic Control Unit (Ecu) Initialization Procedure
WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Occupant classification ECU must be initialized if occupant classification ECU is replaced, accessories (seat back tray, seat cover, etc.) are installed on vehicle, right front seat is removed from vehicle, AIR BAG warning light comes on or vehicle has been in accident or collision.
- Zero point calibration
Adjust seat to initialization position. See OCCUPANT CLASSIFICATION ECU INITIALIZATION POSITION table. Connect Toyota hand-held tester to Data Link Connector (DLC). Turn ignition switch to ON position. Perform zero point calibration by following prompts on tester screen. See tester operator"s manual for additional instructions. Go to step 2, Sensitivity check.NOTE: When performing sensitivity check, use a solid metal weight (check results may be inaccurate if weight made from liquid is used). - Sensitivity check
Place 66.14 lbs. (30 kg) solid metal weight on right front seat. Turn ignition switch to ON position. Perform sensitivity check by following prompts on tester screen. See tester operator"s manual for additional instructions.
OCCUPANT CLASSIFICATION ECU INITIALIZATION POSITION
| Seat Component | Position |
|---|---|
| Slide direction | Rearmost position |
| Reclining angle | Upright position |
| Headrest height | Lowest position |
| Lifter height | Lowest position |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.