Without RPO F45

Scan Tool Data Definitions (W/F45)
Automatic Level Control Compressor Active: This indicates when the compressor is running.
Automatic Level Control Exhaust Solenoid Active: This indicates when the exhaust solenoid is on.
Controller Battery Volts: This indicates the voltage present at the control module.
DSP Software Version ID: This number indicates the ID of the software version.
EEPROM Calibration ID: This number indicates the calibration ID.
GM Part Number: Indicates the 8 digit GM part number of the module.
GMSCM Software Version: This number indicates version of software in the control module.
Left Rear Position Sensor: Indicates the signal voltage at the control module.
Right Rear Position Sensor: Indicates the signal voltage at the control module.