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Home >> Chevrolet >> 2013 >> Tahoe LT, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1475 (Vehicle Diagnostic Information (1 Of 2)) >> Specifications >> Generator Control Module Scan Tool Information
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Generator Control Module Scan Tool Information

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Starter/Generator Control Module Scan Tool Data Parameters

Parameter System State Expected Value Description
Operating Conditions:  Ignition ON
APM Control Mode - Off The scan tool displays Off, High to Low, Low to High or Not Used. This is the state of the auxiliary power module (APM) control mode.
APM Control Status - Charging The scan tool displays Charging, Current Limited, Shutdown or Not Used. This is the auxiliary power module (APM) control status.
Desired APM Voltage - Varies This displays Volts. This is the desired auxiliary power module (APM) voltage.
Generator Starter Field Current - Varies This displays amps.
Generator Starter Field Current - Enable The scan tool displays Enable or Disable. This is the current state of the generator starter field.
Hill Hold Solenoid 1 - Varies This displays %.
Hill Hold Solenoid 2 - Varies This displays %.
Hill Hold Solenoid Relay - Varies This displays Enable or Disable. This is the current state of the hill hold solenoid relay.
Hood Position - Closed The scan tool displays Open or Closed. This is the current position of the hood switch.
Hybrid System Voltage - Varies This displays Volts. This is the current hybrid system voltage.
SGCM 12 Volt Converter - Varies This displays amps.
SGCM Converter Temperature - Varies This displays °C (°F). This is the current starter/generator control module (SGCM) converter temperature.
SGCM Internal Temperature - Varies This displays °C (°F). This is the current starter/generator control module (SGCM) internal temperature.
SGCM Inverter Temperature - Varies This displays °C (°F). This is the current starter/generator control module (SGCM) inverter temperature.
Starter Generator Speed - Varies This displays RPM.
Starter Generator Temperature - Varies This displays °C (°F).
Starter/Generator Control Module Scan Tool Output Controls

Output Control Description
Brake Hold Sol. 1 This output control commands the brake hold solenoid 1 ON and OFF.
Brake Hold Sol. 2 This output control commands the brake hold solenoid 2 ON and OFF.
SGCM Field Current This output control commands the starter/generator control module (SGCM) field current ON and OFF.