Scan Tool Data Definitions
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
- Crank Request Signal
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The scan tool displays Yes/No. The scan tool displays Yes when the powertrain control module (PCM) receives a crank request.
- Ignition 1 Signal
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The scan tool displays voltage. The scan tool displays the current voltage at the battery.
- GEN L-Terminal Signal Command
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The scan tool displays On/Off. The scan tool displays Off until the engine is started, then it will display On.
- GEN F-Terminal Signal
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The scan tool displays 0%-100%. The scan tool displays 0%-5% until the engine is running, then the percentage value varies depending on electrical loads.
- TR Sw.
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The scan tool displays Park, Reverse, Neutral, Drive 4, Drive 3, Drive 2 and Drive 1. The scan tool displays the position of the transmission range switch.