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.
Initial Condition To Activate The System
The operation of the vehicle security system is controlled by the doors and trunk.
To activate the vehicle security system, BCM must receive signals indicating the ignition switch is OFF, doors and trunk are closed and locked.
When a door or trunk is open, BCM terminal 12, 13, 42, 47 or 48 receives a ground signal from each switch.
When front door LH is unlocked, BCM terminal 46 receives a signal from terminal 11 of main power window and door lock/unlock switch.
When front door RH is unlocked, BCM terminal 46 receives a signal from terminal 2 of power window and door lock/unlock switch RH.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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