Sierra 1500 4WD V8-6.0L VIN U (2006)
Auxiliary Power Outlet: Scan Tool Testing and Procedures
Scan Tool Data Definitions
SCAN TOOL DATA DEFINITIONS
Ignition 1 Signal: The scan tool displays the current voltage at the battery.
GEN L-Terminal Signal Command: The scan tool displays OK/No Output. The scan tool displays OK until malfunction is detected on the generator L
terminal circuit, then it reads No Output.
GEN F-Terminal Signal: 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.
Powertrain Control Module (PCM)
Energy Storage Contol Module (ESCM)