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
The SECURITY Indicator Inoperative check is designed to find out the reason the SECURITY indicator is not illuminating. See Figure. However, the anti-theft diagnostic system operation check must always be the starting point for all Passlock™ system troubleshooting. The diagnostics in this procedure are designed to troubleshoot non DTC troubles. For example battery power, ignition 1 input, ground and shorted or open SECURITY indicator circuit.
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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.