GM Service Manual Online
For 1990-2009 cars only
Table 1: Radio Scan Tool Data Parameters
Table 2: Radio Scan Tool Output Controls

Radio Scan Tool Data Parameters

Parameter

System State

Expected Value

Description

Operating Conditions: Ignition ON

Antenna Signal

--

Varies

The scan tool displays 0-300. The signal from the antenna is measured in dBuV.

Band Number

--

Varies

The scan tool displays AM/FM1/FM2/XM1/XM2. This is the current band setting.

CD Changer

--

Connected

The scan tool displays Connected or Not Connected. This is the status of the CD changer.

CD Focus Errors

--

Varies

The scan tool displays 0-999. This is the number of CD focus errors the radio has recorded.

CD Inserted

--

Varies

The scan tool displays Yes/No. It will display Yes if a CD is recognized in the radio.

CD Load/Unload Errors

--

Varies

The scan tool displays 0-999. This is the number of CD loading and unloading errors the radio has recorded.

CD Tracking Errors

--

Varies

The scan tool displays 0-999. This is the number of CD tracking errors the radio has recorded.

Driver Number

--

Driver 1 (Driver 2 if the memory 2 button has been activated)

The scan tool displays Unknown, Driver 1-2. This is the memory position the driver has selected as received by Class 2 lines.

New VIN Counter

--

Varies

This numeric value increments each time the VIN is commanded to re-learn.

Phone

--

Varies

The scan tool displays Present or Not Present. This is the status of the phone.

Preset Control

--

Preset 1-6, if active radio station is a preset

The scan tool displays a preset number 1-6. This is the preset number when the radio is on a preset station.

Single CD Track Number

--

Varies

The scan tool displays the current track number on the CD.

Source

--

Varies

The scan tool displays Audio Off, Tuner, CD, ICDX, XM, CD Changer, MD Changer, Single MD Player, Nav Voice Stereo, Enhanced Stereo, AD Stereo, Phone Mono, Nav Voice Mono, Enhanced Mono, Ad Mono or Phone Stero. this indicates the source of the audio signal currently being output.

Theft Armed

--

Varies

The scan tool displays Yes/No/Learned VIN Number. The scan tool displays Yes when the theft mode has been turned ON by recognizing a valid VIN #.

Theft Lock

--

Unlocked

The scan tool displays Yes/No. The scan tool displays Yes when the radio receives the incorrect VIN number from the PCM across Class 2 lines.

Total CD Hours

--

Varies

The scan tool displays 0-999 hrs. This is the total number of hours the CD player has been used.

Radio Scan Tool Output Controls

Output Control

Description

AM Pass A Stopping

This output control decreases the seek/scan radio stations.

Chime Level

This output control increases the chime volume level.

Country Code

This output control allows you to change country settings.

FM Pass A Stopping

This output control decreases the seek/scan radio stations.

Left Front Speaker

Commanding the speaker ON will turn OFF all speakers except this speaker.

Commanding the speaker OFF will turn OFF all speakers.

Left Rear Speaker

Commanding the speaker ON will turn OFF all speakers except this speaker.

Commanding the speaker OFF will turn OFF all speakers.

Loud Amp Chime Volume

This output control allows you to change the voltage of the chime volume.

Loud Chime Volume

This output control allows you to change the voltage of the chime volume.

Normal Amp Chime Volume

This output control allows you to change the voltage of the chime volume.

Normal Chime Volume

This output control allows you to change the voltage of the chime volume.

Radio Setup

This output control allows you to setup a new or existing radio.

Right Front Speaker

Commanding the speaker ON will turn OFF all speakers except this speaker.

Commanding the speaker OFF will turn OFF all speakers.

Right Rear Speaker

Commanding the speaker ON will turn OFF all speakers except this speaker.

Commanding the speaker OFF will turn OFF all speakers.

Tuner Calibration

This output control allows you to calibrate the tuner setting from its default setting normal, to distance or local.