Scan Tool Data Definitions
- Battery Voltage
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The scan tool displays 0.0-16.0 volts. The battery voltage input represents the system voltage measured at the BCM ignition feed input.
- GM Part Number
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The scan tool displays the 8-digit alphanumeric module part number.
- 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.
- Ignition 3
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Input to the control module from the ignition switch indicating the ignition 3 position. Switch closed (HOT) in ignition switch position ON.
- Julian Date of Build
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This is the day of the year that the module was built.
- Key in Ignition
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Input from ignition switch indicating that the ignition key is inserted into the ignition switch. HOT with key in ignition switch.
- SWC Switch Voltage
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Indicates the steering wheel controls supply voltage.
- SWC Switch Power
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Indicates if voltage is supplied to the steering wheel controls.
- Year Module Built
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This is the year that the module was built.