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.
Scan Tool Data Definitions
- Battery Voltage
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The scan tool displays the battery system voltage.
- Content Theft Lamp
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The scan tool displays the state of the SECURITY lamp. The scan tool displays ON when activated by an unauthorized entry.
- Content Theft State
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The scan tool displays the state of the content theft feature. The scan tool displays ON when activated by an unauthorized entry.
- Door Key Unlock
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The scan tool displays the state of the drivers door lock cylinder. The scan tool displays ACTIVE when the cylinder is in the UNLOCK position.
- Door Lock Switch
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The scan tool displays the state of the power door lock switch. The scan tool displays ACTIVE when the switch is in the LOCK position.
- Door Ajar Switch
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The scan tool displays the position of the drivers door. The scan tool displays ACTIVE when the drivers door is ajar.
- GM Part Number
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The scan tool displays the part number assigned to the body control module (BCM) that is currently in the vehicle.
- Left Rear/Cargo Door Ajar Switch
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The scan tool displays the position of the left rear door and the cargo door. The scan tool displays ACTIVE when the left rear or cargo door is ajar.
- Passenger Door Ajar Switch
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The scan tool displays the position of the passenger door. The scan tool displays ACTIVE when the passenger door is ajar.
- Right Rear Door Ajar Switch
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The scan tool displays the position of the right rear door. The scan tool displays ACTIVE when the right rear door is ajar.
- Security Lamp
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The scan tool displays the state of the SECURITY lamp. The scan tool displays ON, OFF or FLASHING.
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.