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 132 (POWER SEATS)COMPONENT TESTSMEMORY SWITCH CIRCUITINSPECTION PROCEDURE
2004 Toyota Celica GT, Standard
Inspection Procedure
2004 Toyota Celica GT, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
For circuit wiring diagram, see Fig 1.
- Inspect the seat memory switch. See Fig 2. If the results are OK, go to the next step. If the results are not good, replace the seat memory switch.
- Check the seat memory switch and seat position control ECU wiring harnesses. See Fig 3. If the continuity is OK, check and replace the position control ECU assembly. See POSITION CONTROL ECU ASSEMBLY under REMOVAL & INSTALLATION. If the continuity is not good, check and replace the harness and connector.
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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.