Scan Tool Data Definitions
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Battery Volts
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The scan tool displays Volts. The scan tool displays the battery voltage received by the module.
- GEN F-Terminal Signal
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The scan tool displays 0%-100%. The scan tool displays 0%-20% until the engine is started and the PCM receives a variable signal from the generator. This value varies depending on electrical loads
- GEN L-Terminal Signal
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The scan tool displays Voltage/No Voltage. The scan tool displays Voltage until the engine is running, then No Voltage is displayed.
- Ignition 1 Signal
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The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the Ignition 1 circuit to the PCM.