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

Definition

Operating Conditions : Ignition ON

Antenna Module

--

Enabled

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

Auxiliary Audio Input

--

Present

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

DRR

--

Present

The scan tool displays Present or Not Present. This is indicates if the digital radio receiver present.

Ign. Cycles Since last DTC

--

Varies

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

Phone Signal

--

Present

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

Power Mode

--

Run

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

Power Mode Config.

--

Normal Mode

The scan tool displays Bench Mode or Normal Mode. This is the configuration of the power mode.

Signal Strength

--

Varies

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

Theft Armed

--

Learned VIN

The scan tool displays Learned VIN or No VIN. The Scan tool displays Learned VIN when the theft mode has been turned ON by recognizing a valid VIN.

Theft Lock Status

--

Inactive

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

Video Display

--

Varies

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

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.

Commanding the speaker OFF enables all speakers.

Left Rear Speaker

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

Commanding the speaker OFF enables all speakers.

Right Front Speaker

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

Commanding the speaker OFF enables all speakers.

Right Rear Speaker

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

Commanding the speaker OFF enables all speakers.