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: Inputs
- Ambient Light Sensor
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The scan tool displays inactive or active. When the ambient light sensor detects day light conditions, the scan tool will display inactive. When the ambient light sensor detects low light conditions, the scan tool will display active.
- Fog Lamp Switch
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The scan tool displays inactive or active. When the fog lamps are OFF, the scan tool will display inactive. When the fog lamps are ON, the scan tool will display active.
- Courtesy Lamp Switch
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The scan tool displays inactive or active. When the courtesy lamps are OFF, the scan tool will display inactive. When the courtesy lamps are ON, the scan tool will display active.
- Headlamp Switch
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The scan tool displays inactive or active. When the headlamp switch is in the OFF position, the scan tool will display inactive. When the headlamp switch is in the ON position, the scan tool will display active.
- High Beam - Low Level
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The scan tool displays inactive or active. When the DRL lamps are OFF, the scan tool will display inactive. When the DRL lamps are ON, the scan tool will display active.
- High Beam - High Level
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The scan tool displays inactive or active. When the high beam headlamps are OFF, the scan tool will display inactive. When the high beam headlamps are ON, the scan tool will display active.
- Interior Lamp Defect Switch
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The scan tool displays inactive or active. When the interior lamp defect switch is OFF, the scan tool will display inactive. When the interior lamp defect switch is ON, the scan tool will display active.
- Park Brake Switch
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The scan tool displays inactive or active. When the park brake is OFF, the scan tool will display inactive. When the park brake is applied, the scan tool will display active.
- Park Lamp Monitor
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The scan tool displays inactive or active. When the park lamps are OFF, the scan tool will display inactive. When the park lamps are ON, the scan tool will display active.
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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.