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

Expected Value

Definition

Operating Conditions: Ignition ON

A/C Switch

Inactive

This scan tool displays Active or Inactive. This is the state of the air conditioning switch.

AM/FM Button

Off

This scan tool displays On or Off. This is the state of the AM/FM switch.

Antenna Module

Disabled

This scan tool displays Enabled or Disabled. This is the state of the antenna module.

Audio Select Button

Off

This scan tool displays On or Off. This is the state of the audio select button.

Auto. HVAC Button

Inactive

This scan tool displays Active or Inactive. This is the state of the automatic HVAC switch.

Aux. Switch

Inactive

This scan tool displays Active or Inactive. This is the state of the auxiliary switch.

Auxiliary Audio Input

Not Present

The scan tool displays Present or Not Present. This is the state of the auxiliary audio input.

Balance

Varies

The scan tool displays the present audio speaker balance.

Bass

Varies

This displays percent. This is the current audio bass percentage.

Battery Voltage

Varies

This displays Volts. This is the current battery system voltage.

Bench Mode

Inactive

The scan tool displays Active or Inactive. This is the current state of the bench mode.

CD Button

Off

The scan tool displays On or Off. This is the state of the CD button.

CD/Aux Button

Inactive

The scan tool displays Active or Inactive. This is the state of the CD/Aux button.

Configuration Button

Inactive

The scan tool displays Active or Inactive. This is the state of the configuration button.

Day/Night Button

Inactive

The scan tool displays Active or Inactive. This is the state of the day/night button.

Delete Button

Inactive

The scan tool displays Active or Inactive. This is the state of the delete switch.

Destination

Inactive

The scan tool displays Active or Inactive. This is the state of the destination.

Display Switch

Off

The scan tool displays On or Off. This is the state of the display switch.

Driver Heated Seat Sw.

Inactive

The scan tool displays Active or Inactive. This is the current state of the driver heated seat switch.

Driver Temp Down Button

Off

The scan tool displays On or Off. This is the state of the driver temperature down switch.

Driver Temp Up Button

Off

The scan tool displays On or Off. This is the state of the driver temperature up switch.

DRR

Present

The scan tool displays Present or Not Present. This is the state of the DRR.

Eject Button

Inactive

The scan tool displays Active or Inactive. This is the current state of the eject switch.

Fade

Varies

The scan tool displays the current audio speaker fade.

Favorites Button

Inactive

The scan tool displays Active or Inactive. This is the current state of the favorites button.

Front Defrost Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the front defrost switch.

Hard Disk Drive Button

Inactive

The scan tool displays Active or Inactive. This is the current state of the hard disk drive button.

HVAC Fan Down Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the HVAC fan down switch.

HVAC Fan Up Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the HVAC fan up switch.

Info Button

Off

The scan tool displays On or Off. This is the current state of the information switch.

Load Button

Inactive

The scan tool displays Active or Inactive. This is the current state of the load switch.

Midrange

Varies

This displays percent. This is the current audio midrange percentage.

Mode Down Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the mode down switch.

Mode Up Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the mode up switch.

NAV

Inactive

The scan tool displays Active or Inactive. This is the current state of the navigation system.

On/Off Switch

Off or Inactive

The scan tool displays On / Off or Active / Inactive. This is the current state of the on/off switch.

Outside Air Mode Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the outside air mode switch.

Pass. Heated Seat Sw.

Inactive

The scan tool displays Active or Inactive. This is the current state of the passenger heated seat switch.

Pass. HVAC Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the passenger HVAC switch.

Passenger Cooled Seat Button

Inactive

The scan tool displays Active or Inactive. This is the current state of the passenger cooled seat switch.

Passenger Temp Down Button

Off

The scan tool displays On or Off. This is the current state of the passenger temperature down switch.

Passenger Temp Up Button

Off

The scan tool displays On or Off. This is the current state of the passenger temperature up switch.

Phone Signal

Present

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

Play/Pause Button

Off

The scan tool displays On or Off. This is the current state of the play/pause switch.

Power Mode

Run

The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch.

Preset 1-6 Button

Inactive

The scan tool displays Active or Inactive. This is the current state of the corresponding preset switch.

Rear Defrost Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the rear defrost switch.

Recirculation Mode

Inactive

The scan tool displays Active or Inactive. This is the current state of the recirculation mode.

Recirculation Switch

Inactive

The scan tool displays Active or Inactive. This is the current state of the recirculation switch.

Record Button

Inactive

The scan tool displays Active or Inactive. This is the current state of the record switch.

Repeat Button

Off

The scan tool displays On or Off. This is the current state of the repeat switch.

Reverse Button

Off

The scan tool displays On or Off. This is the current state of the reverse switch.

RSE

Not Present

The scan tool displays Present or Not Present. Present is displayed if rear seat entertainment is available on the vehicle.

Seek Down Button

Off

The scan tool displays On or Off. This is the current state of the seek down switch.

Seek Up Button

Off

The scan tool displays On or Off. This is the current state of the seek up switch.

Select Switch

Off

The scan tool displays On or Off. This is the current state of the select switch.

Signal Strength

Varies

This displays dB. This is the signal strength of the radio.

Theft Armed

Learned VIN

The scan tool displays Learned or Not Learned. This is the state of the VIN programming in the radio.

Theft Lock Status

Inactive

The scan tool displays Active or Inactive. This is the state of the theft lock system.

Treble

Varies

The scan tool displays Present or Not Present. This is the state of the video display.

Tune Button

Off

The scan tool displays On or Off. This is the current state of the tune switch.

Valet Status

Varies

The scan tool displays Active or Inactive. This is the current state of the valet system.

XM Button

Inactive

The scan tool displays Active or Inactive. This is the current state of the XM switch.

Radio Scan Tool Output Controls

Scan Tool Output Control

Description

Clear

This command will clear the hard disk drive.

Eject

This command will force an ejection of the CD or DVD in the radio.

Reset

This command will force a reset of the radio faceplate.

Wakeup

This command will force a wakeup of the radio faceplate.