GM Service Manual Online
For 1990-2009 cars only
8 Digit GM Part Number: The scan tool displays the part number of the module.

Balance: The scan tool displays -50 to +50. The Balance between the right and left audio output.

Bass: The scan tool displays 0-100%. The percentage of bass selected at the radio.

Battery Voltage: The scan tool displays 0-18 Volts. The Voltage measured from the modules ignition positive voltage circuit to ground.

Cal. Module 1 Part No.: The scan tool displays the part number of the modules software.

Cal. Module 1 Suffix: The scan tool displays the suffix of the modules software.

Chime Volume: The scan tool displays 0-100%. The percentage at which the chime volume has been calibrated to.

Componet Serial Number: The scan tool displays the serial number of the module.

Day: The scan tool displays the day the software was created.

Digital Radio Antenna: This parameter indicates the amount of current being used by the digital radio antenna by measuring the voltage drop across an internal resistor. Early design modules support the mV reading while later design modules support a mA reading.

Fade: The scan tool displays -50 to +50. The Fade between the front and rear audio output.

Ignition Counter: The scan tool displays the number of ignition cycles.

Ignition Since Current DTC: The scan tool displays 0-225 Cycles. The number of ignition cycles since a current DTC was set.

Midrange: The scan tool displays 0-100%. The percentage of midrange selected at the radio.

Month: The scan tool displays the month the software was created.

New VIN Counter: The scan tool displays 0-99. The number of times the radio has been in different vehicles.

Operational S/W Part No: The scan tool displays the part number of the modules software.

Operational S/W Suffix: The scan tool displays the suffix of the modules software.

Power Mode: The scan tool displays what power mode the module is on.

Radio ID: The scan tool displays the radio ID of the digital radio receiver.

Signal Strength: The scan tool displays 0-225 dB. The signal strength of the radio frequency.

Software Version: The scan tool displays the version of software.

Treble: The scan tool displays 0-100%. The percentage of treble selected at the radio.

Volume: The scan tool displays 0-100%. The percentage of volume selected at the radio.

Year: The scan tool displays the year the software was created.