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.
Circuit Description
Even when the theft deterrent system is in the disarmed state, the security indicator flashes due to a signal output from the immobilizer system. The security indicator flashes continuously by receiving a signal from the immobilizer system at all times while in the armed state.
The multiplex network body ECU causes the security indicator to light up or blink only during the arming preparation state and alarm sounding state.
NO RELATED
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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.