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Home >> Pontiac >> 2002 >> Grand Prix V6-3.1L VIN J >> Repair and Diagnosis >> Starting and Charging >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions
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Scan Tool Data Definitions

GEN L-Terminal Signal Command: The scan tool displays On/Off. The scan tool displays Off until the engine is running, then the PCM supplies then the percentage value varies depending on electrical loads

Generator Lamp Circuit: The scan tool displays Fault/OK/Invalid State. The scan tool displays Fault until the ignition is placed into the ON position then OK is displayed.

Generator Lamp Command: The scan tool displays Yes/No. The scan tool displays Yes when the PCM grounds the charge indicator control circuit.

Ignition 1 Signal: The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the Ignition 1 circuit to the PCM.
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