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 TESTSPOWER SEAT CONTROL 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 power seat control switch. See Fig 2. If the continuity is OK, go to the next step. If the continuity is not good, replace the seat control switch. See POWER SEAT SWITCH under REMOVAL & INSTALLATION.
- Check the power seat control switch and the seat position control ECU. See Fig 3. If the continuity is OK, check and replace the seat position control ECU. See POSITION CONTROL ECU ASSEMBLY under REMOVAL & INSTALLATION. If the continuity is not good, repair or replace the harness or 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.