GM Service Manual Online
For 1990-2009 cars only

Radio Scan Tool Information without Navigation Radio

Table 1: Radio Scan Tool Data Parameters
Table 2: Radio Scan Tool Output Controls

Radio Scan Tool Data Parameters

Parameter

Expected Value

Definition

Operating Conditions: Ignition ON

Amplifier (U85 Only)

Varies

The scan tool displays Present or Not Present indicating the status of the audio amplifier.

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.

Cassette Cut Tape

Varies

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

Cass. Load/Unload Errors

Varies

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

Cassette Inserted

Varies

The scan tool displays Yes/No indicating if a cassette tape is detected.

Cassette Metal

Varies

The scan tool displays Metal/Not Metal indicating if a metal type cassette tape is detected.

Cassette Side

Varies

The scan tool displays Top/Bottom indicating the current side being played of an inserted cassette tape.

Cassette Tight Tape

Varies

The scan tool displays 0 999. This is the number of cassette tight tape errors the radio has recorded.

CD Changer

Varies

The scan tool displays Not Connected/Connected indicating the status of a 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 indicating if a CD is inserted in the CD player.

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

Varies

The scan tool displays Unknown/Driver 1/Driver 2. This is the memory position the driver has selected.

New VIN Counter

Varies

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

Phone

Present

The scan tool displays Present or Not Present. This indicates if the radio detects the vehicle is equipped with OnStar.

Preset Control

Varies

The scan tool displays Not A Preset/Preset 1/ Preset 2/ Preset 3/ Preset 4/ Preset 5/ Preset 6. This is the status of the preset when the radio is on a station.

Single CD Track Number

Varies

The scan tool displays 0-255. This indicates the CD track number currently being played.

Source

Varies

The scan tool displays Off/Tuner/ Radio Monitor/ Cassette/ CD/ RDS Interrupt/ ICDX/ CD Changer/ Phone Stereo/ MD Changer/ Single MD/ Nav Voice Stereo/ Enhanced Stereo/ AD Stereo/ Phone Mono/ Nav Voice Mono/ Enhanced mono/ AD Mono/ RSE Stereo/ DRR Tuner. This is the current source/type of the signal being received/played.

Theft Armed

Learned VIN

The scan tool displays No VIN/ Learned VIN.

Theft Lock

Unlocked

The scan tool displays Unlocked/Locked. The scan tool displays locked when the radio receives the incorrect VIN number.

Total Cassette Hours

Varies

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

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

Scan Tool Output Control

Description

Left Front Speaker

Commanding the speaker ON will turn OFF all speakers except this speaker, including door tweeter if equipped.

Commanding the speaker OFF will turn OFF all speakers.

Left Rear Speaker

Commanding the speaker ON will turn OFF all speakers except this speaker, including door tweeter if equipped.

Commanding the speaker OFF will turn OFF all speakers.

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.

Radio Scan Tool Information with Navigation Radio

Navigation Radio Scan Tool Data Parameters

Parameter

Expected Value

Definition

Operating Conditions: Ignition ON

Auto. Volume Control (Bose only)

Varies

The scan tool displays Active or Inactive. Active is displayed if equipped.

Band Number

Varies

The scan tool displays AM, FM1, FM2, Weather, or LONG WAVE. This is the current signal type the radio is set to receive.

CD Changer

Varies

The scan tool displays Not Connected/Connected indicating the status of a CD changer.

Clock

12 Hr

The scan tool displays 12 Hr or 24 Hr. this is the current display mode of the clock.

Driver Number

Varies

The scan tool displays Unknown/Diver 1/Driver 2. This is the memory position the driver has selected.

DSP Selected

Varies

The scan tool displays Off, Talk, Front Seat, Rear Seat, or Spacious. This is the current DSP equalization setting.

Ign. Cycles Since last DTC

Varies

The scan tool displays the number of ignition cycles since the last DTC.

Language

English

The scan tool indicates the current language setting for displays.

Long Wave Status

--

The scan tool displays Present or Not Present.

New VIN Counter

Varies

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

Point of Sale

US

The scan tool displays US, Canada, Europe, Japan, Gulf, U.K., Sweden, Norway, Finland, Switz., Mexico, or Pacific.

Preset Settings

Home

The scan tool displays Home or Away.

Region Code

North America

The scan tool displays North America, Asia, Australia, Europe, or Saudi.

Signal Strength for Radio

Varies

The scan tool displays the strength of the signal being received by the radio in dB.

Signal Strength for TV

Varies

The scan tool displays the strength of the signal being received by the TV receiver in dB.

Source Selected

Varies

The scan tool displays Audio Off, Tuner, TV, CD/DVD, CDX, or Phone. this indicates the source of the audio signal currently being output.

Theft Lock

Inactive

The scan tool displays Active or Inactive. The scan tool displays Active when the radio receives the incorrect VIN number.

Total CD/DVD Hours

Varies

The scan tool displays the total time the CD/DVD player has operated shown in hours.

Total Radio Hours

Varies

The scan tool displays the total time the radio has operated shown in hours.