Scan Tool Data Definitions

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

8-Digit GM Part Number: The scan tool displays an 8 digit alphanumeric number. The part number of the module.

Amp Type: The scan tool displays the type of amplifier installed in the vehicle, Bose/Non-Bose.

Antenna Enable: The scan tool displays Active/Inactive.

Audio Device: The scan tool displays Null/Tuner/CD Player. The radio detects the presence of the device that is operating.

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 radio or amplifier's ignition positive voltage circuit to ground.

Cal. Module 1 Part No.: The scan tool displays the 8 digit part number of the module.

Cal. Module 1 Suffix: The scan tool displays the 2 position suffix of the module.

CD Changer: The scan tool displays Connected if a CD changer is detected or Not Connected if no CD changer is present.

CD Changer Disc Number: The scan tool displays which CD the changer is currently playing.

CD Changer Track Number: The scan tool displays the track number of the disc that is currently playing.

CD Inserted: The scan tool displays Yes or No. Whether a CD is loaded or not.

Chime Type: The scan tool displays the type of chime select such as fast.

Chime Speaker: The scan tool displays Front Left, Front Right, LF Woofer, Back Left, Back Right, RF Woofer. The selected chime speaker is displayed.

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

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

External Audio Device: The scan tool displays Connected/Not Connected. The radio senses the presence of an external audio device.

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.

Julian Date of Build: The scan tool displays 0-999. The month and year that the module was built.

Microphone Level: The scan tool displays 0-100%. The percentage of microphone selected at the radio.

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. Mute.

Noise Compensation: The scan tool displays On/Off. The selected switch position of the noise compensation system.

Operational S/W Part No.: The scan tool displays the 8 digit software part number of the module.

Operational S/W Suffix: The scan tool displays the 2 position software suffix of the module.

Personalization: The scan tool displays Driver 1/Driver 2.

Phone: The scan tool displays whether or not a phone is present or not present.

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

RSA: The scan tool displays Present/Not Present. Present is displayed if rear seat entertainment control is installed in the vehicle.

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.

Speed Compensated Volume: The scan tool displays Off/Low/Medium/High according to what the auto volume is set on the module.

Source: The scan tool displays Off/Tuner/ICDX/CD/Cassette. This data parameter indicates the source that is operating.

Theft Armed: The scan tool displays Learned VIN/No VIN. The Scan tool displays Learned VIN when the theft mode has been turned ON by recognizing a valid VIN #.

Theft Locked: The scan tool displays Locked/Unlocked. The scan tool displays locked when the radio receives the incorrect VIN number across Class 2 lines.

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

Year Module Built: The scan tool displays 1990-2020. The production year the module was manufactured.