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 MANUALSCHRYSLER2004SEBRING LIMITED, 2D COUPE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSVEHICLE THEFT SECURITY SYSTEM - COUPEIGNITION SWITCHGENERAL DESCRIPTIONOPERATION
2004 Chrysler Sebring Limited, 2D Coupe, Standard
Ignition Switch: General Description: Operation
2004 Chrysler Sebring Limited, 2D Coupe, StandardSECTION Operation
- When the ignition switch is turned to "ON" position, the ECM < M/T > or PCM < A/T > sends a requirement for the encrypted code to the immobilizer-ECU (at this time, the engine is remobilized).
- When the immobilizer-ECU receives the requirement from the ECM < M/T > or PCM < A/T >, the immobilizer-ECU supplies power to the transponder inside the ignition key via the antenna. The energized transponder sends the encrypted code back to the immobilizer-ECU via the antenna.
- The immobilizer-ECU judges the encrypted code with its code logic in itself. If they are identical, the immobilizer-ECU sends the encrypted code to the ECM < M/T > or PCM < A/T >.
- If the ECM < M/T > or PCM < A/T > can not receive the encrypted code, the engine will be immobilized.
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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.