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
- Driver Door Ajar Sw.
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The scan tool displays the position of the driver's door. The scan tool displays On when the door is open.
- Ignition Accessory
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Input from ignition switch accessory circuit. Used to determine power mode. Hot in ACC and ON.
- Ignition 0
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Input to the control module from the ignition switch indicating the Ignition 0 position. Switch closed (HOT) in ignition switch positions UNLOCK, ACC, ON, and START
- Ignition 1
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Input to the control module from the ignition switch indicating the Ignition 1 position. Switch closed (HOT) in ignition switch positions ON and START
- Passenger Door Ajar Sw.
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The scan tool displays the position of the passenger door. The scan tool displays On when the door is open.
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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.