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 426 (IGNITION SWITCH & KEY UNLOCK WARNING SWITCH)INSPECTION
2004 Toyota Celica GT, Standard
Section 426 (Ignition Switch & Key Unlock Warning Switch): Inspection
2004 Toyota Celica GT, StandardSECTION Inspection
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT IGNITION SWITCH CONTINUITY IGNITION SWITCH CONTINUITY
Switch position Tester connection Specified condition LOCK - No continuity ACC 1 - 3 Continuity ON 1 - 2 - 3
5 - 6Continuity START 1 - 2
4 - 5 - 6Continuity If continuity is not as specified, replace the switch.
- INSPECT KEY UNLOCK WARNING SWITCH CONTINUITY KEY UNLOCK WARNING SWITCH CONTINUITY
Switch position Tester connection Specified condition OFF (Ignition key removed) - No continuity ON (Ignition key set) 1 - 2 Continuity If continuity is not as specified, replace the switch.
RENDER: 1.0x
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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.